[#37] Add tree service methods: getRange(), getRangeHash(), patchObject(). Maven project version inheritance.

Signed-off-by: Ori Bruk <o.bruk@yadro.com>

.forgejo/workflows/verify-code.yaml

@@ -0,0 +1,12 @@
+name: Verify code phase
+on: [pull_request]
+
+jobs:
+  verify-code:
+    name: Verify code
+    runs-on: docker
+    container: git.frostfs.info/truecloudlab/env:openjdk-11-maven-3.8.6
+    steps:
+      - uses: actions/checkout@v3
+      - name: Run the Maven verify phase
+        run: mvn --batch-mode --update-snapshots verify

CODEOWNERS

@@ -0,0 +1,3 @@
+.*          @orikik
+.forgejo/.* @potyarkin
+Makefile    @potyarkin

README.md

@@ -21,31 +21,40 @@ neo-go wallet export -w <path_to_your_wallet> -d <address_from_p1>
 ### Container operations
 
 ```java
+import info.frostfs.sdk.FrostFSClient;
 import info.frostfs.sdk.dto.container.Container;
 import info.frostfs.sdk.dto.netmap.PlacementPolicy;
 import info.frostfs.sdk.dto.netmap.Replica;
 import info.frostfs.sdk.enums.BasicAcl;
 import info.frostfs.sdk.jdo.ClientSettings;
-import info.frostfs.sdk.FrostFSClient;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerCreate;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerDelete;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerGet;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerGetAll;
 
 public class ContainerExample {
 
     public void example() {
+        var callContext = new CallContext();
         ClientSettings clientSettings = new ClientSettings(<your_key>, <your_host>);
         FrostFSClient frostFSClient = new FrostFSClient(clientSettings);
 
         // Create container
-        var placementPolicy = new PlacementPolicy(new Replica[]{new Replica(1)}, Boolean.TRUE);
+        var placementPolicy = new PlacementPolicy(new Replica[]{new Replica(1)}, true);
-        var containerId = frostFSClient.createContainer(new Container(BasicAcl.PUBLIC_RW, placementPolicy));
+        var prmContainerCreate = new PrmContainerCreate(new Container(BasicAcl.PUBLIC_RW, placementPolicy));
+        var containerId = frostFSClient.createContainer(prmContainerCreate, callContext);
 
         // Get container
-        var container = frostFSClient.getContainer(containerId);
+        var prmContainerGet = new PrmContainerGet(containerId);
+        var container = frostFSClient.getContainer(prmContainerGet, callContext);
 
         // List containers
-        var containerIds = frostFSClient.listContainers();
+        var containerIds = frostFSClient.listContainers(new PrmContainerGetAll(), callContext);
 
         // Delete container
-        frostFSClient.deleteContainer(containerId);
+        var prmContainerDelete = new PrmContainerDelete(containerId);
+        frostFSClient.deleteContainer(prmContainerDelete, callContext);
     }
 }
 ```
@@ -53,45 +62,104 @@ public class ContainerExample {
 ### Object operations
 
 ```java
+import info.frostfs.sdk.dto.object.*;
 import info.frostfs.sdk.enums.ObjectType;
-import info.frostfs.sdk.dto.container.ContainerId;
+import info.frostfs.sdk.jdo.ClientSettings;
-import info.frostfs.sdk.dto.object.ObjectAttribute;
+import info.frostfs.sdk.jdo.parameters.CallContext;
-import info.frostfs.sdk.dto.object.ObjectFilter;
+import info.frostfs.sdk.jdo.parameters.object.*;
-import info.frostfs.sdk.dto.object.ObjectHeader;
+import org.apache.commons.lang3.ArrayUtils;
-import info.frostfs.sdk.dto.object.ObjectId;
-import info.frostfs.sdk.jdo.PutObjectParameters;
-import info.frostfs.sdk.FrostFSClient;
 
 import java.io.FileInputStream;
+import java.io.FileOutputStream;
 import java.io.IOException;
 
+import static java.util.Objects.isNull;
+
 public class ObjectExample {
 
     public void example() {
+        CallContext callContext = new CallContext();
         ClientSettings clientSettings = new ClientSettings(<your_key>, <your_host>);
         FrostFSClient frostFSClient = new FrostFSClient(clientSettings);
 
         // Put object
         ObjectId objectId;
-        try (FileInputStream fis = new FileInputStream("cat.jpg")) {
+        try (FileInputStream file = new FileInputStream("/path/to/file/cat.jpg")) {
-            var cat = new ObjectHeader(
+            var attribute = new ObjectAttribute("Filename", "cat.jpg");
-                    containerId, ObjectType.REGULAR, new ObjectAttribute[]{new ObjectAttribute("Filename", "cat.jpg")}
+            var cat = new ObjectHeader(containerId, ObjectType.REGULAR, attribute);
-            );
+            var prmObjectPut = PrmObjectPut.builder().objectHeader(cat).build();
+            var writer = frostFSClient.putObject(prmObjectPut, callContext);
 
-            var params = new PutObjectParameters(cat, fis);
+            writer.write(file.readAllBytes());
-            objectId = frostFSClient.putObject(params);
+            objectId = writer.complete();
         } catch (IOException e) {
             throw new RuntimeException(e);
         }
 
         // Get object
-        var obj = frostFSClient.getObject(containerId, objectId);
+        var prmObjectGet = new PrmObjectGet(containerId, oid);
+        ObjectFrostFS object = frostFSClient.getObject(prmObjectGet, callContext);
+
+        var reader = object.getObjectReader();
+        var chunk = reader.readChunk();
+        var length = chunk.length;
+        byte[] buffer = null;
+        while (length > 0) {
+            buffer = isNull(buffer) ? chunk : ArrayHelper.concat(buffer, chunk);
+
+            chunk = object.getObjectReader().readChunk();
+            length = ArrayUtils.isEmpty(chunk) ? 0 : chunk.length;
+        }
+
+        try (FileOutputStream fos = new FileOutputStream("/path/to/file/newCat.jpg")) {
+            fos.write(buffer);
+        } catch (Exception ignored) {
+        }
 
         // Get object header
-        var objectHeader = frostFSClient.getObjectHead(containerId, objectId);
+        var prmObjectHeadGet = new PrmObjectHeadGet(containerId, objectId);
+        var objectHeader = frostFSClient.getObjectHead(prmObjectHeadGet, callContext);
 
         // Search regular objects
-        var objectIds = frostFSClient.searchObjects(containerId, new ObjectFilter.FilterByRootObject());
+        var prmObjectSearch = new PrmObjectSearch(containerId, new ObjectFilter.FilterByRootObject());
+        var objectIds = frostFSClient.searchObjects(prmObjectSearch, callContext);
+
+        // Delete object
+        var prmObjectDelete = new PrmObjectDelete(containerId, objectId);
+        frostFSClient.deleteObject(prmObjectDelete, callContext);
+    }
+}
+```
+
+### Pool init
+
+```java
+import info.frostfs.sdk.jdo.ECDsa;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.jdo.pool.NodeParameters;
+import info.frostfs.sdk.jdo.pool.PoolInitParameters;
+import info.frostfs.sdk.pool.Pool;
+
+public class PoolExample {
+
+    public static void example() {
+        CallContext callContext = new CallContext();
+
+        //Init
+        var nodeParam1 = new NodeParameters(1, <your_host1>, 1);
+        var nodeParam2 = new NodeParameters(1, <your_host2>, 1);
+        var nodeParam3 = new NodeParameters(1, <your_host3>, 1);
+        var nodeParam4 = new NodeParameters(1, <your_host4>, 1);
+
+        PoolInitParameters initParameters = new PoolInitParameters();
+        initParameters.setKey(new ECDsa(<your_key>));
+        initParameters.setNodeParams(new NodeParameters[]{nodeParam1, nodeParam2, nodeParam3, nodeParam4});
+
+
+        Pool pool = new Pool(initParameters);
+
+        //Dial (Required!)
+        pool.dial(callContext);
     }
 }
 ```

checkstyle.xml

@@ -10,6 +10,7 @@
     <module name="FileTabCharacter">
         <property name="eachLine" value="true"/>
     </module>
+    <module name="NewlineAtEndOfFile"/>
 
     <!-- Checks for Size Violations.                    -->
     <!-- See http://checkstyle.sf.net/config_sizes.html -->
@@ -20,6 +21,15 @@
     <module name="TreeWalker">
         <property name="tabWidth" value="4"/>
 
+        <module name="Regexp">
+            <property name="message" value="Blank line at end of the block is not allowed"/>
+            <property name="format" value="^\s*$^\s*\}"/>
+            <property name="ignoreComments" value="true"/>
+            <property name="illegalPattern" value="true"/>
+        </module>
+
+        <module name="HideUtilityClassConstructor" />
+
         <module name="SuppressWarningsHolder" />
 
         <!-- Checks for Naming Conventions.                  -->

client/pom.xml

@@ -6,7 +6,7 @@
     <parent>
         <groupId>info.frostfs.sdk</groupId>
         <artifactId>frostfs-sdk-java</artifactId>
-        <version>0.1.0</version>
+        <version>${revision}</version>
     </parent>
 
     <artifactId>client</artifactId>
@@ -21,17 +21,17 @@
         <dependency>
             <groupId>info.frostfs.sdk</groupId>
             <artifactId>cryptography</artifactId>
-            <version>0.1.0</version>
+            <version>${revision}</version>
         </dependency>
         <dependency>
             <groupId>info.frostfs.sdk</groupId>
             <artifactId>models</artifactId>
-            <version>0.1.0</version>
+            <version>${revision}</version>
         </dependency>
         <dependency>
             <groupId>info.frostfs.sdk</groupId>
             <artifactId>exceptions</artifactId>
-            <version>0.1.0</version>
+            <version>${revision}</version>
         </dependency>
         <dependency>
             <groupId>commons-codec</groupId>
@@ -54,5 +54,10 @@
             <artifactId>simpleclient_common</artifactId>
             <version>0.16.0</version>
         </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>2.0.16</version>
+        </dependency>
     </dependencies>
 </project>

client/src/main/java/info/frostfs/sdk/FrostFSClient.java

@@ -1,12 +1,12 @@
 package info.frostfs.sdk;
 
-import frostfs.session.Types;
+import frostfs.accounting.Types;
+import info.frostfs.sdk.dto.chain.Chain;
 import info.frostfs.sdk.dto.container.Container;
 import info.frostfs.sdk.dto.container.ContainerId;
 import info.frostfs.sdk.dto.netmap.NetmapSnapshot;
 import info.frostfs.sdk.dto.netmap.NodeInfo;
 import info.frostfs.sdk.dto.netmap.Version;
-import info.frostfs.sdk.dto.object.ObjectFilter;
 import info.frostfs.sdk.dto.object.ObjectFrostFS;
 import info.frostfs.sdk.dto.object.ObjectHeader;
 import info.frostfs.sdk.dto.object.ObjectId;
@@ -15,14 +15,32 @@ import info.frostfs.sdk.exceptions.ProcessFrostFSException;
 import info.frostfs.sdk.jdo.ClientEnvironment;
 import info.frostfs.sdk.jdo.ClientSettings;
 import info.frostfs.sdk.jdo.NetworkSettings;
-import info.frostfs.sdk.jdo.PutObjectParameters;
+import info.frostfs.sdk.jdo.parameters.CallContext;
-import info.frostfs.sdk.services.*;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainAdd;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainList;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainRemove;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerCreate;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerDelete;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerGet;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerGetAll;
+import info.frostfs.sdk.jdo.parameters.object.*;
+import info.frostfs.sdk.jdo.parameters.object.patch.PrmObjectPatch;
+import info.frostfs.sdk.jdo.parameters.object.patch.PrmRangeGet;
+import info.frostfs.sdk.jdo.parameters.object.patch.PrmRangeHashGet;
+import info.frostfs.sdk.jdo.parameters.session.PrmSessionCreate;
+import info.frostfs.sdk.jdo.result.ObjectHeaderResult;
+import info.frostfs.sdk.pool.SessionCache;
+import info.frostfs.sdk.pool.WrapperPrm;
+import info.frostfs.sdk.services.CommonClient;
 import info.frostfs.sdk.services.impl.*;
 import info.frostfs.sdk.services.impl.interceptor.Configuration;
 import info.frostfs.sdk.services.impl.interceptor.MonitoringClientInterceptor;
+import info.frostfs.sdk.services.impl.rwhelper.ObjectWriter;
+import info.frostfs.sdk.services.impl.rwhelper.RangeReader;
 import info.frostfs.sdk.utils.Validator;
 import io.grpc.Channel;
 import io.grpc.ClientInterceptors;
+import io.grpc.ManagedChannel;
 
 import java.util.List;
 
@@ -30,37 +48,64 @@ import static info.frostfs.sdk.constants.ErrorConst.VERSION_UNSUPPORTED_TEMPLATE
 import static info.frostfs.sdk.tools.GrpcClient.initGrpcChannel;
 import static java.util.Objects.nonNull;
 
-public class FrostFSClient implements ContainerClient, ObjectClient, NetmapClient, SessionClient, ToolsClient {
+public class FrostFSClient implements CommonClient {
+    private static final MonitoringClientInterceptor MONITORING_CLIENT_INTERCEPTOR =
+            MonitoringClientInterceptor.create(Configuration.allMetrics());
+
     private final ContainerClientImpl containerClientImpl;
-    private final NetmapClientImpl netmapClientImpl;
     private final ObjectClientImpl objectClientImpl;
+    private final ApeManagerClientImpl apeManagerClient;
+    private final NetmapClientImpl netmapClientImpl;
     private final SessionClientImpl sessionClientImpl;
     private final ObjectToolsImpl objectToolsImpl;
+    private final AccountingClientImpl accountingClient;
+    private final ManagedChannel channel;
 
     public FrostFSClient(ClientSettings clientSettings) {
         Validator.validate(clientSettings);
-        Channel channel = nonNull(clientSettings.getChannel())
+        this.channel = nonNull(clientSettings.getChannel())
                 ? clientSettings.getChannel()
                 : initGrpcChannel(clientSettings);
 
-        MonitoringClientInterceptor monitoringClientInterceptor = MonitoringClientInterceptor
+        Channel interceptChannel = ClientInterceptors.intercept(channel, MONITORING_CLIENT_INTERCEPTOR);
-                .create(Configuration.allMetrics());
+        ClientEnvironment clientEnvironment = new ClientEnvironment(
-        channel = ClientInterceptors.intercept(channel, monitoringClientInterceptor);
+                clientSettings.getKey(), interceptChannel, new Version(), this,
-        ClientEnvironment clientEnvironment =
+                new SessionCache(0)
-                new ClientEnvironment(clientSettings.getKey(), channel, new Version(), this);
+        );
 
         Validator.validate(clientEnvironment);
 
         this.containerClientImpl = new ContainerClientImpl(clientEnvironment);
+        this.objectClientImpl = new ObjectClientImpl(clientEnvironment);
+        this.apeManagerClient = new ApeManagerClientImpl(clientEnvironment);
         this.netmapClientImpl = new NetmapClientImpl(clientEnvironment);
         this.sessionClientImpl = new SessionClientImpl(clientEnvironment);
-        this.objectClientImpl = new ObjectClientImpl(clientEnvironment);
         this.objectToolsImpl = new ObjectToolsImpl(clientEnvironment);
-        checkFrostFsVersionSupport(clientEnvironment.getVersion());
+        this.accountingClient = new AccountingClientImpl(clientEnvironment);
+        checkFrostFSVersionSupport(clientEnvironment.getVersion());
     }
 
-    private void checkFrostFsVersionSupport(Version version) {
+    public FrostFSClient(WrapperPrm prm, SessionCache cache) {
-        var localNodeInfo = netmapClientImpl.getLocalNodeInfo();
+        this.channel = initGrpcChannel(prm.getAddress());
+
+        Channel interceptChannel = ClientInterceptors.intercept(channel, MONITORING_CLIENT_INTERCEPTOR);
+        ClientEnvironment clientEnvironment =
+                new ClientEnvironment(prm.getKey(), interceptChannel, new Version(), this, cache);
+
+        Validator.validate(clientEnvironment);
+
+        this.containerClientImpl = new ContainerClientImpl(clientEnvironment);
+        this.objectClientImpl = new ObjectClientImpl(clientEnvironment);
+        this.apeManagerClient = new ApeManagerClientImpl(clientEnvironment);
+        this.netmapClientImpl = new NetmapClientImpl(clientEnvironment);
+        this.sessionClientImpl = new SessionClientImpl(clientEnvironment);
+        this.objectToolsImpl = new ObjectToolsImpl(clientEnvironment);
+        this.accountingClient = new AccountingClientImpl(clientEnvironment);
+        checkFrostFSVersionSupport(clientEnvironment.getVersion());
+    }
+
+    private void checkFrostFSVersionSupport(Version version) {
+        var localNodeInfo = netmapClientImpl.getLocalNodeInfo(new CallContext());
         if (!localNodeInfo.getVersion().isSupported(version)) {
             throw new ProcessFrostFSException(
                     String.format(VERSION_UNSUPPORTED_TEMPLATE, localNodeInfo.getVersion())
@@ -69,81 +114,131 @@ public class FrostFSClient implements ContainerClient, ObjectClient, NetmapClien
     }
 
     @Override
-    public Container getContainer(ContainerId cid) {
+    public Container getContainer(PrmContainerGet args, CallContext ctx) {
-        return containerClientImpl.getContainer(cid);
+        return containerClientImpl.getContainer(args, ctx);
     }
 
     @Override
-    public List<ContainerId> listContainers() {
+    public List<ContainerId> listContainers(PrmContainerGetAll args, CallContext ctx) {
-        return containerClientImpl.listContainers();
+        return containerClientImpl.listContainers(args, ctx);
     }
 
     @Override
-    public ContainerId createContainer(Container container) {
+    public ContainerId createContainer(PrmContainerCreate args, CallContext ctx) {
-        return containerClientImpl.createContainer(container);
+        return containerClientImpl.createContainer(args, ctx);
     }
 
     @Override
-    public void deleteContainer(ContainerId cid) {
+    public void deleteContainer(PrmContainerDelete args, CallContext ctx) {
-        containerClientImpl.deleteContainer(cid);
+        containerClientImpl.deleteContainer(args, ctx);
     }
 
     @Override
-    public ObjectHeader getObjectHead(ContainerId containerId, ObjectId objectId) {
+    public ObjectHeaderResult getObjectHead(PrmObjectHeadGet args, CallContext ctx) {
-        return objectClientImpl.getObjectHead(containerId, objectId);
+        return objectClientImpl.getObjectHead(args, ctx);
     }
 
     @Override
-    public ObjectFrostFS getObject(ContainerId containerId, ObjectId objectId) {
+    public ObjectFrostFS getObject(PrmObjectGet args, CallContext ctx) {
-        return objectClientImpl.getObject(containerId, objectId);
+        return objectClientImpl.getObject(args, ctx);
     }
 
     @Override
-    public ObjectId putObject(PutObjectParameters parameters) {
+    public ObjectWriter putObject(PrmObjectPut args, CallContext ctx) {
-        return objectClientImpl.putObject(parameters);
+        return objectClientImpl.putObject(args, ctx);
     }
 
     @Override
-    public ObjectId putSingleObject(ObjectFrostFS objectFrostFS) {
+    public ObjectId putClientCutObject(PrmObjectClientCutPut args, CallContext ctx) {
-        return objectClientImpl.putSingleObject(objectFrostFS);
+        return objectClientImpl.putClientCutObject(args, ctx);
     }
 
     @Override
-    public void deleteObject(ContainerId containerId, ObjectId objectId) {
+    public ObjectId putSingleObject(PrmObjectSinglePut args, CallContext ctx) {
-        objectClientImpl.deleteObject(containerId, objectId);
+        return objectClientImpl.putSingleObject(args, ctx);
     }
 
     @Override
-    public Iterable<ObjectId> searchObjects(ContainerId cid, ObjectFilter<?>... filters) {
+    public void deleteObject(PrmObjectDelete args, CallContext ctx) {
-        return objectClientImpl.searchObjects(cid, filters);
+        objectClientImpl.deleteObject(args, ctx);
     }
 
     @Override
-    public NetmapSnapshot getNetmapSnapshot() {
+    public Iterable<ObjectId> searchObjects(PrmObjectSearch args, CallContext ctx) {
-        return netmapClientImpl.getNetmapSnapshot();
+        return objectClientImpl.searchObjects(args, ctx);
     }
 
     @Override
-    public NodeInfo getLocalNodeInfo() {
+    public RangeReader getRange(PrmRangeGet args, CallContext ctx) {
-        return netmapClientImpl.getLocalNodeInfo();
+        return objectClientImpl.getRange(args, ctx);
     }
 
     @Override
-    public NetworkSettings getNetworkSettings() {
+    public byte[][] getRangeHash(PrmRangeHashGet args, CallContext ctx) {
-        return netmapClientImpl.getNetworkSettings();
+        return objectClientImpl.getRangeHash(args, ctx);
     }
 
     @Override
-    public SessionToken createSession(long expiration) {
+    public ObjectId patchObject(PrmObjectPatch args, CallContext ctx) {
-        return sessionClientImpl.createSession(expiration);
+        return objectClientImpl.patchObject(args, ctx);
     }
 
-    public Types.SessionToken createSessionInternal(long expiration) {
+    @Override
-        return sessionClientImpl.createSessionInternal(expiration);
+    public byte[] addChain(PrmApeChainAdd args, CallContext ctx) {
+        return apeManagerClient.addChain(args, ctx);
+    }
+
+    @Override
+    public void removeChain(PrmApeChainRemove args, CallContext ctx) {
+        apeManagerClient.removeChain(args, ctx);
+    }
+
+    @Override
+    public List<Chain> listChains(PrmApeChainList args, CallContext ctx) {
+        return apeManagerClient.listChains(args, ctx);
+    }
+
+    @Override
+    public NetmapSnapshot getNetmapSnapshot(CallContext ctx) {
+        return netmapClientImpl.getNetmapSnapshot(ctx);
+    }
+
+    @Override
+    public NodeInfo getLocalNodeInfo(CallContext ctx) {
+        return netmapClientImpl.getLocalNodeInfo(ctx);
+    }
+
+    @Override
+    public NetworkSettings getNetworkSettings(CallContext ctx) {
+        return netmapClientImpl.getNetworkSettings(ctx);
+    }
+
+    @Override
+    public SessionToken createSession(PrmSessionCreate args, CallContext ctx) {
+        return sessionClientImpl.createSession(args, ctx);
+    }
+
+    public frostfs.session.Types.SessionToken createSessionInternal(PrmSessionCreate args, CallContext ctx) {
+        return sessionClientImpl.createSessionInternal(args, ctx);
     }
 
     @Override
     public ObjectId calculateObjectId(ObjectHeader header) {
         return objectToolsImpl.calculateObjectId(header);
     }
+
+    @Override
+    public Types.Decimal getBalance(CallContext ctx) {
+        return accountingClient.getBalance(ctx);
+    }
+
+    @Override
+    public String dial(CallContext ctx) {
+        accountingClient.getBalance(ctx);
+        return null;
+    }
+
+    public void close() {
+        channel.shutdown();
+    }
 }

client/src/main/java/info/frostfs/sdk/constants/PoolConst.java

@@ -0,0 +1,14 @@
+package info.frostfs.sdk.constants;
+
+public class PoolConst {
+    public static final int DEFAULT_SESSION_TOKEN_EXPIRATION_DURATION = 100; // in epochs
+    public static final int DEFAULT_ERROR_THRESHOLD = 100;
+    public static final int DEFAULT_GRACEFUL_CLOSE_ON_SWITCH_TIMEOUT = 10; // Seconds
+    public static final int DEFAULT_REBALANCE_INTERVAL = 15; // Seconds
+    public static final int DEFAULT_HEALTHCHECK_TIMEOUT = 4; // Seconds
+    public static final int DEFAULT_DIAL_TIMEOUT = 5; // Seconds
+    public static final int DEFAULT_STREAM_TIMEOUT = 10; // Seconds
+
+    private PoolConst() {
+    }
+}

client/src/main/java/info/frostfs/sdk/enums/HealthyStatus.java

@@ -0,0 +1,23 @@
+package info.frostfs.sdk.enums;
+
+public enum HealthyStatus {
+    // status HEALTHY is set when connection is ready to be used by the pool.
+    HEALTHY(1),
+
+    // status UNHEALTHY_ON_REQUEST is set when communication after dialing to the
+    // endpoint is failed due to immediate or accumulated errors, connection is
+    // available and pool should close it before re-establishing connection once again.
+    UNHEALTHY_ON_REQUEST(2),
+
+    // status UNHEALTHY_ON_DIAL is set when dialing to the endpoint is failed,
+    // so there is no connection to the endpoint, and pool should not close it
+    // before re-establishing connection once again.
+    UNHEALTHY_ON_DIAL(3),
+    ;
+
+    public final int value;
+
+    HealthyStatus(int value) {
+        this.value = value;
+    }
+}

client/src/main/java/info/frostfs/sdk/enums/MethodIndex.java

@@ -0,0 +1,29 @@
+package info.frostfs.sdk.enums;
+
+public enum MethodIndex {
+    METHOD_BALANCE_GET("balanceGet"),
+    METHOD_CONTAINER_PUT("containerPut"),
+    METHOD_CONTAINER_GET("ContainerGet"),
+    METHOD_CONTAINER_LIST("ContainerList"),
+    METHOD_CONTAINER_DELETE("ContainerDelete"),
+    METHOD_ENDPOINT_INFO("EndpointInfo"),
+    METHOD_NETWORK_INFO("NetworkInfo"),
+    METHOD_NETMAP_SNAPSHOT("NetMapSnapshot"),
+    METHOD_OBJECT_PUT("ObjectPut"),
+    METHOD_OBJECT_DELETE("ObjectDelete"),
+    METHOD_OBJECT_GET("ObjectGet"),
+    METHOD_OBJECT_HEAD("ObjectHead"),
+    METHOD_OBJECT_RANGE("ObjectRange"),
+    METHOD_OBJECT_PATCH("ObjectPatch"),
+    METHOD_SESSION_CREATE("SessionCreate"),
+    METHOD_APE_MANAGER_ADD_CHAIN("APEManagerAddChain"),
+    METHOD_APE_MANAGER_REMOVE_CHAIN("APEManagerRemoveChain"),
+    METHOD_APE_MANAGER_LIST_CHAINS("APEManagerListChains"),
+    ;
+
+    public final String methodName;
+
+    MethodIndex(String methodName) {
+        this.methodName = methodName;
+    }
+}

client/src/main/java/info/frostfs/sdk/exceptions/ResponseFrostFSException.java

@@ -4,7 +4,7 @@ import info.frostfs.sdk.dto.response.ResponseStatus;
 import lombok.Getter;
 
 @Getter
-public class ResponseFrostFSException extends RuntimeException {
+public class ResponseFrostFSException extends FrostFSException {
     private final ResponseStatus status;
 
     public ResponseFrostFSException(ResponseStatus status) {

client/src/main/java/info/frostfs/sdk/jdo/ClientEnvironment.java

@@ -5,9 +5,14 @@ import info.frostfs.sdk.annotations.NotNull;
 import info.frostfs.sdk.annotations.Validate;
 import info.frostfs.sdk.dto.netmap.Version;
 import info.frostfs.sdk.dto.object.OwnerId;
+import info.frostfs.sdk.pool.SessionCache;
 import io.grpc.Channel;
 import lombok.Getter;
 import lombok.Setter;
+import org.apache.commons.lang3.StringUtils;
+
+import static info.frostfs.sdk.Helper.getHexString;
+import static info.frostfs.sdk.pool.Pool.formCacheKey;
 
 @Getter
 @Setter
@@ -15,27 +20,48 @@ public class ClientEnvironment {
 
     @NotNull
     private final OwnerId ownerId;
-
     @NotNull
     private final Version version;
-
     @NotNull
     @Validate
     private final ECDsa key;
-
     @NotNull
     private final Channel channel;
-
     @NotNull
     private final FrostFSClient frostFSClient;
 
+    private String sessionKey;
+    private String address;
     private NetworkSettings networkSettings;
 
-    public ClientEnvironment(String wif, Channel channel, Version version, FrostFSClient frostFSClient) {
+    private SessionCache sessionCache;
+
+    public ClientEnvironment(String wif, Channel channel, Version version, FrostFSClient frostFSClient,
+                             SessionCache sessionCache) {
         this.key = new ECDsa(wif);
         this.ownerId = new OwnerId(key.getPublicKeyByte());
         this.version = version;
         this.channel = channel;
         this.frostFSClient = frostFSClient;
+        this.sessionCache = sessionCache;
+        this.address = channel.authority();
+    }
+
+    public ClientEnvironment(ECDsa key, Channel channel, Version version, FrostFSClient frostFSClient,
+                             SessionCache sessionCache) {
+        this.key = key;
+        this.ownerId = new OwnerId(key.getPublicKeyByte());
+        this.version = version;
+        this.channel = channel;
+        this.frostFSClient = frostFSClient;
+        this.sessionCache = sessionCache;
+    }
+
+    public String getSessionKey() {
+        if (StringUtils.isBlank(sessionKey)) {
+            this.sessionKey = formCacheKey(address, getHexString(key.getPublicKeyByte()));
+        }
+
+        return sessionKey;
     }
 }

client/src/main/java/info/frostfs/sdk/jdo/ClientSettings.java

@@ -2,8 +2,8 @@ package info.frostfs.sdk.jdo;
 
 import info.frostfs.sdk.annotations.AtLeastOneIsFilled;
 import info.frostfs.sdk.annotations.NotNull;
-import io.grpc.Channel;
 import io.grpc.ChannelCredentials;
+import io.grpc.ManagedChannel;
 import lombok.Getter;
 import lombok.experimental.FieldNameConstants;
 
@@ -17,7 +17,7 @@ public class ClientSettings {
 
     private String host;
     private ChannelCredentials credentials;
-    private Channel channel;
+    private ManagedChannel channel;
 
     public ClientSettings(String key, String host) {
         this.key = key;
@@ -30,7 +30,7 @@ public class ClientSettings {
         this.credentials = credentials;
     }
 
-    public ClientSettings(String key, Channel channel) {
+    public ClientSettings(String key, ManagedChannel channel) {
         this.key = key;
         this.channel = channel;
     }

client/src/main/java/info/frostfs/sdk/jdo/PutObjectParameters.java

@@ -1,40 +0,0 @@
-package info.frostfs.sdk.jdo;
-
-import info.frostfs.sdk.annotations.NotNull;
-import info.frostfs.sdk.dto.object.ObjectHeader;
-import info.frostfs.sdk.dto.session.SessionToken;
-import lombok.Getter;
-import lombok.Setter;
-
-import java.io.FileInputStream;
-
-@Getter
-@Setter
-public class PutObjectParameters {
-
-    @NotNull
-    private ObjectHeader header;
-
-    @NotNull
-    private FileInputStream payload;
-
-    private boolean clientCut;
-    private int bufferMaxSize;
-    private byte[] customerBuffer;
-    private SessionToken sessionToken;
-    private int maxObjectSizeCache;
-    private long currentStreamPosition;
-    private long fullLength;
-
-    public PutObjectParameters(ObjectHeader header, FileInputStream payload, boolean clientCut, int bufferMaxSize) {
-        this.header = header;
-        this.payload = payload;
-        this.clientCut = clientCut;
-        this.bufferMaxSize = bufferMaxSize;
-    }
-
-    public PutObjectParameters(ObjectHeader header, FileInputStream payload) {
-        this.header = header;
-        this.payload = payload;
-    }
-}

client/src/main/java/info/frostfs/sdk/jdo/parameters/CallContext.java

@@ -0,0 +1,23 @@
+package info.frostfs.sdk.jdo.parameters;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.concurrent.TimeUnit;
+
+import static info.frostfs.sdk.constants.AppConst.DEFAULT_GRPC_TIMEOUT;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class CallContext {
+    private final long timeout;
+    private final TimeUnit timeUnit;
+
+    public CallContext() {
+        this.timeout = DEFAULT_GRPC_TIMEOUT;
+        this.timeUnit = TimeUnit.SECONDS;
+    }
+}
+

client/src/main/java/info/frostfs/sdk/jdo/parameters/PrmWait.java

@@ -1,4 +1,4 @@
-package info.frostfs.sdk.jdo;
+package info.frostfs.sdk.jdo.parameters;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
@@ -8,14 +8,14 @@ import java.time.LocalDateTime;
 
 @Getter
 @AllArgsConstructor
-public class WaitParameters {
+public class PrmWait {
     private static final Duration DEFAULT_TIMEOUT = Duration.ofSeconds(120);
     private static final Duration DEFAULT_POLL_INTERVAL = Duration.ofSeconds(5);
 
     private final Duration timeout;
     private final Duration pollInterval;
 
-    public WaitParameters() {
+    public PrmWait() {
         this.timeout = DEFAULT_TIMEOUT;
         this.pollInterval = DEFAULT_POLL_INTERVAL;
     }

client/src/main/java/info/frostfs/sdk/jdo/parameters/ape/PrmApeChainAdd.java

@@ -0,0 +1,27 @@
+package info.frostfs.sdk.jdo.parameters.ape;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.chain.Chain;
+import info.frostfs.sdk.dto.chain.ChainTarget;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmApeChainAdd {
+    @NotNull
+    private Chain chain;
+    @NotNull
+    private ChainTarget chainTarget;
+
+    private Map<String, String> xHeaders;
+
+    public PrmApeChainAdd(Chain chain, ChainTarget chainTarget) {
+        this.chain = chain;
+        this.chainTarget = chainTarget;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/ape/PrmApeChainList.java

@@ -0,0 +1,23 @@
+package info.frostfs.sdk.jdo.parameters.ape;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.chain.ChainTarget;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmApeChainList {
+    @NotNull
+    private ChainTarget chainTarget;
+
+    private Map<String, String> xHeaders;
+
+    public PrmApeChainList(ChainTarget chainTarget) {
+        this.chainTarget = chainTarget;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/ape/PrmApeChainRemove.java

@@ -0,0 +1,27 @@
+package info.frostfs.sdk.jdo.parameters.ape;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.chain.Chain;
+import info.frostfs.sdk.dto.chain.ChainTarget;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmApeChainRemove {
+    @NotNull
+    private Chain chain;
+    @NotNull
+    private ChainTarget chainTarget;
+
+    private Map<String, String> xHeaders;
+
+    public PrmApeChainRemove(Chain chain, ChainTarget chainTarget) {
+        this.chain = chain;
+        this.chainTarget = chainTarget;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/container/PrmContainerCreate.java

@@ -0,0 +1,33 @@
+package info.frostfs.sdk.jdo.parameters.container;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.container.Container;
+import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.jdo.parameters.PrmWait;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmContainerCreate implements SessionContext {
+    @NotNull
+    private Container container;
+
+    private PrmWait waitParams;
+    private SessionToken sessionToken;
+    private Map<String, String> xHeaders;
+
+    public PrmContainerCreate(Container container, PrmWait waitParams) {
+        this.container = container;
+        this.waitParams = waitParams;
+    }
+
+    public PrmContainerCreate(Container container) {
+        this.container = container;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/container/PrmContainerDelete.java

@@ -0,0 +1,33 @@
+package info.frostfs.sdk.jdo.parameters.container;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.container.ContainerId;
+import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.jdo.parameters.PrmWait;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmContainerDelete implements SessionContext {
+    @NotNull
+    private ContainerId containerId;
+
+    private PrmWait waitParams;
+    private SessionToken sessionToken;
+    private Map<String, String> xHeaders;
+
+    public PrmContainerDelete(ContainerId containerId, PrmWait waitParams) {
+        this.containerId = containerId;
+        this.waitParams = waitParams;
+    }
+
+    public PrmContainerDelete(ContainerId containerId) {
+        this.containerId = containerId;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/container/PrmContainerGet.java

@@ -0,0 +1,23 @@
+package info.frostfs.sdk.jdo.parameters.container;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.container.ContainerId;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmContainerGet {
+    @NotNull
+    private ContainerId containerId;
+
+    private Map<String, String> xHeaders;
+
+    public PrmContainerGet(ContainerId containerId) {
+        this.containerId = containerId;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/container/PrmContainerGetAll.java

@@ -0,0 +1,16 @@
+package info.frostfs.sdk.jdo.parameters.container;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+@NoArgsConstructor
+public class PrmContainerGetAll {
+    private Map<String, String> xHeaders;
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/object/PrmObjectClientCutPut.java

@@ -0,0 +1,28 @@
+package info.frostfs.sdk.jdo.parameters.object;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.object.ObjectHeader;
+import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.io.InputStream;
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmObjectClientCutPut implements PrmObjectPutBase, SessionContext {
+    @NotNull
+    private final PutObjectContext putObjectContext = new PutObjectContext();
+    @NotNull
+    private ObjectHeader objectHeader;
+    @NotNull
+    private InputStream payload;
+    private int bufferMaxSize;
+    private byte[] customerBuffer;
+    private SessionToken sessionToken;
+    private Map<String, String> xHeaders;
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/object/PrmObjectDelete.java

@@ -0,0 +1,30 @@
+package info.frostfs.sdk.jdo.parameters.object;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.container.ContainerId;
+import info.frostfs.sdk.dto.object.ObjectId;
+import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmObjectDelete implements SessionContext {
+    @NotNull
+    private ContainerId containerId;
+    @NotNull
+    private ObjectId objectId;
+
+    private SessionToken sessionToken;
+    private Map<String, String> xHeaders;
+
+    public PrmObjectDelete(ContainerId containerId, ObjectId objectId) {
+        this.containerId = containerId;
+        this.objectId = objectId;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/object/PrmObjectGet.java

@@ -0,0 +1,30 @@
+package info.frostfs.sdk.jdo.parameters.object;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.container.ContainerId;
+import info.frostfs.sdk.dto.object.ObjectId;
+import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmObjectGet implements SessionContext {
+    @NotNull
+    private ContainerId containerId;
+    @NotNull
+    private ObjectId objectId;
+
+    private SessionToken sessionToken;
+    private Map<String, String> xHeaders;
+
+    public PrmObjectGet(ContainerId containerId, ObjectId objectId) {
+        this.containerId = containerId;
+        this.objectId = objectId;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/object/PrmObjectHeadGet.java

@@ -0,0 +1,31 @@
+package info.frostfs.sdk.jdo.parameters.object;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.container.ContainerId;
+import info.frostfs.sdk.dto.object.ObjectId;
+import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmObjectHeadGet implements SessionContext {
+    @NotNull
+    private ContainerId containerId;
+    @NotNull
+    private ObjectId objectId;
+
+    private boolean raw;
+    private SessionToken sessionToken;
+    private Map<String, String> xHeaders;
+
+    public PrmObjectHeadGet(ContainerId containerId, ObjectId objectId) {
+        this.containerId = containerId;
+        this.objectId = objectId;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/object/PrmObjectPut.java

@@ -0,0 +1,28 @@
+package info.frostfs.sdk.jdo.parameters.object;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.object.ObjectHeader;
+import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmObjectPut implements PrmObjectPutBase, SessionContext {
+    @NotNull
+    private final PutObjectContext putObjectContext = new PutObjectContext();
+    @NotNull
+    private ObjectHeader objectHeader;
+
+    private SessionToken sessionToken;
+    private Map<String, String> xHeaders;
+
+    public PrmObjectPut(ObjectHeader objectHeader) {
+        this.objectHeader = objectHeader;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/object/PrmObjectPutBase.java

@@ -0,0 +1,12 @@
+package info.frostfs.sdk.jdo.parameters.object;
+
+import info.frostfs.sdk.dto.object.ObjectHeader;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
+
+import java.util.Map;
+
+public interface PrmObjectPutBase extends SessionContext {
+    ObjectHeader getObjectHeader();
+
+    Map<String, String> getXHeaders();
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/object/PrmObjectSearch.java

@@ -0,0 +1,30 @@
+package info.frostfs.sdk.jdo.parameters.object;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.container.ContainerId;
+import info.frostfs.sdk.dto.object.ObjectFilter;
+import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmObjectSearch implements SessionContext {
+    @NotNull
+    private ContainerId containerId;
+    @NotNull
+    private ObjectFilter<?>[] filters;
+
+    private SessionToken sessionToken;
+    private Map<String, String> xHeaders;
+
+    public PrmObjectSearch(ContainerId containerId, ObjectFilter<?>... filters) {
+        this.containerId = containerId;
+        this.filters = filters;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/object/PrmObjectSinglePut.java

@@ -0,0 +1,26 @@
+package info.frostfs.sdk.jdo.parameters.object;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.object.ObjectFrostFS;
+import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmObjectSinglePut implements SessionContext {
+    @NotNull
+    private ObjectFrostFS objectFrostFS;
+
+    private SessionToken sessionToken;
+    private Map<String, String> xHeaders;
+
+    public PrmObjectSinglePut(ObjectFrostFS objectFrostFS) {
+        this.objectFrostFS = objectFrostFS;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/object/PutObjectContext.java

@@ -0,0 +1,14 @@
+package info.frostfs.sdk.jdo.parameters.object;
+
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Getter
+@Setter
+@NoArgsConstructor
+public class PutObjectContext {
+    private int maxObjectSizeCache;
+    private long currentStreamPosition;
+    private long fullLength;
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/object/patch/PrmObjectPatch.java

@@ -0,0 +1,42 @@
+package info.frostfs.sdk.jdo.parameters.object.patch;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.object.ObjectAttribute;
+import info.frostfs.sdk.dto.object.patch.Address;
+import info.frostfs.sdk.dto.object.patch.Range;
+import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.io.InputStream;
+import java.util.List;
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmObjectPatch implements SessionContext {
+    @NotNull
+    private Address address;
+
+    @NotNull
+    private Range range;
+
+    @NotNull
+    private InputStream payload;
+
+    private List<ObjectAttribute> newAttributes;
+    private boolean replaceAttributes;
+    private int maxChunkLength;
+    private SessionToken sessionToken;
+    private Map<String, String> xHeaders;
+
+    public PrmObjectPatch(Address address, Range range, InputStream payload, int maxChunkLength) {
+        this.address = address;
+        this.range = range;
+        this.payload = payload;
+        this.maxChunkLength = maxChunkLength;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/object/patch/PrmRangeGet.java

@@ -0,0 +1,35 @@
+package info.frostfs.sdk.jdo.parameters.object.patch;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.container.ContainerId;
+import info.frostfs.sdk.dto.object.ObjectId;
+import info.frostfs.sdk.dto.object.patch.Range;
+import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmRangeGet implements SessionContext {
+    @NotNull
+    private ContainerId containerId;
+    @NotNull
+    private ObjectId objectId;
+    @NotNull
+    private Range range;
+
+    private boolean raw;
+    private SessionToken sessionToken;
+    private Map<String, String> xHeaders;
+
+    public PrmRangeGet(ContainerId containerId, ObjectId objectId, Range range) {
+        this.containerId = containerId;
+        this.objectId = objectId;
+        this.range = range;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/object/patch/PrmRangeHashGet.java

@@ -0,0 +1,38 @@
+package info.frostfs.sdk.jdo.parameters.object.patch;
+
+import info.frostfs.sdk.annotations.NotNull;
+import info.frostfs.sdk.dto.container.ContainerId;
+import info.frostfs.sdk.dto.object.ObjectId;
+import info.frostfs.sdk.dto.object.patch.Range;
+import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.List;
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmRangeHashGet implements SessionContext {
+    @NotNull
+    private ContainerId containerId;
+    @NotNull
+    private ObjectId objectId;
+    @NotNull
+    private List<Range> ranges;
+    @NotNull
+    private byte[] salt;
+
+    private SessionToken sessionToken;
+    private Map<String, String> xHeaders;
+
+    public PrmRangeHashGet(ContainerId containerId, ObjectId objectId, List<Range> ranges, byte[] salt) {
+        this.containerId = containerId;
+        this.objectId = objectId;
+        this.ranges = ranges;
+        this.salt = salt;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/session/PrmSessionCreate.java

@@ -0,0 +1,19 @@
+package info.frostfs.sdk.jdo.parameters.session;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.Map;
+
+@Getter
+@Builder
+@AllArgsConstructor
+public class PrmSessionCreate {
+    private long expiration; //-1 is max
+    private Map<String, String> xHeaders;
+
+    public PrmSessionCreate(long expiration) {
+        this.expiration = expiration;
+    }
+}

client/src/main/java/info/frostfs/sdk/jdo/parameters/session/SessionContext.java

@@ -0,0 +1,7 @@
+package info.frostfs.sdk.jdo.parameters.session;
+
+import info.frostfs.sdk.dto.session.SessionToken;
+
+public interface SessionContext {
+    SessionToken getSessionToken();
+}

client/src/main/java/info/frostfs/sdk/jdo/pool/NodeParameters.java

@@ -0,0 +1,12 @@
+package info.frostfs.sdk.jdo.pool;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class NodeParameters {
+    private final int priority;
+    private final String address;
+    private final double weight;
+}

client/src/main/java/info/frostfs/sdk/jdo/pool/PoolInitParameters.java

@@ -0,0 +1,44 @@
+package info.frostfs.sdk.jdo.pool;
+
+import info.frostfs.sdk.jdo.ECDsa;
+import info.frostfs.sdk.pool.ClientWrapper;
+import io.grpc.ClientInterceptors;
+import io.netty.channel.ChannelOption;
+import lombok.Getter;
+import lombok.Setter;
+import org.slf4j.Logger;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.function.Function;
+
+@Getter
+@Setter
+public class PoolInitParameters {
+    private ECDsa key;
+
+    private long nodeDialTimeout;
+
+    private long nodeStreamTimeout;
+
+    private long healthCheckTimeout;
+
+    private long clientRebalanceInterval;
+
+    private long sessionExpirationDuration;
+
+    private int errorThreshold;
+
+    private NodeParameters[] nodeParams;
+
+    private ChannelOption<?>[] dialOptions;
+
+    private Function<String, ClientWrapper> clientBuilder;
+
+    private long gracefulCloseOnSwitchTimeout;
+
+    private Logger logger;
+
+    private Collection<ClientInterceptors> interceptors = new ArrayList<>();
+}
+

client/src/main/java/info/frostfs/sdk/jdo/result/ObjectHeaderResult.java

@@ -0,0 +1,15 @@
+package info.frostfs.sdk.jdo.result;
+
+import info.frostfs.sdk.dto.object.ObjectHeader;
+import info.frostfs.sdk.dto.object.SplitInfo;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.Setter;
+
+@Builder
+@Getter
+@Setter
+public class ObjectHeaderResult {
+    private ObjectHeader headerInfo;
+    private SplitInfo splitInfo;
+}

client/src/main/java/info/frostfs/sdk/pool/ClientStatus.java

@@ -0,0 +1,27 @@
+package info.frostfs.sdk.pool;
+
+public interface ClientStatus {
+    // isHealthy checks if the connection can handle requests.
+    boolean isHealthy();
+
+    // isDialed checks if the connection was created.
+    boolean isDialed();
+
+    // setUnhealthy marks client as unhealthy.
+    void setUnhealthy();
+
+    // address return address of endpoint.
+    String getAddress();
+
+    // currentErrorRate returns current errors rate.
+    // After specific threshold connection is considered as unhealthy.
+    // Pool.startRebalance routine can make this connection healthy again.
+    int getCurrentErrorRate();
+
+    // overallErrorRate returns the number of all happened errors.
+    long getOverallErrorRate();
+
+    // methodsStatus returns statistic for all used methods.
+    StatusSnapshot[] getMethodsStatus();
+}
+

client/src/main/java/info/frostfs/sdk/pool/ClientStatusMonitor.java

@@ -0,0 +1,114 @@
+package info.frostfs.sdk.pool;
+
+import info.frostfs.sdk.enums.HealthyStatus;
+import info.frostfs.sdk.enums.MethodIndex;
+import info.frostfs.sdk.utils.FrostFSMessages;
+import lombok.Getter;
+import lombok.Setter;
+import org.slf4j.Logger;
+
+import java.util.Arrays;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.locks.ReentrantLock;
+
+@Getter
+@Setter
+public class ClientStatusMonitor implements ClientStatus {
+    private final ReentrantLock lock = new ReentrantLock();
+    private final Logger logger;
+    private final AtomicInteger healthy = new AtomicInteger();
+
+    private final String address;
+    private final MethodStatus[] methods;
+
+    private int errorThreshold;
+    private int currentErrorCount;
+    private long overallErrorCount;
+
+    public ClientStatusMonitor(Logger logger, String address) {
+        this.logger = logger;
+        this.healthy.set(HealthyStatus.HEALTHY.value);
+
+        this.address = address;
+        this.methods = Arrays.stream(MethodIndex.values())
+                .map(t -> new MethodStatus(t.methodName))
+                .toArray(MethodStatus[]::new);
+    }
+
+    @Override
+    public boolean isHealthy() {
+        return healthy.get() == HealthyStatus.HEALTHY.value;
+    }
+
+    @Override
+    public boolean isDialed() {
+        return healthy.get() != HealthyStatus.UNHEALTHY_ON_DIAL.value;
+    }
+
+    public void setHealthy() {
+        healthy.set(HealthyStatus.HEALTHY.ordinal());
+    }
+
+    @Override
+    public void setUnhealthy() {
+        healthy.set(HealthyStatus.UNHEALTHY_ON_REQUEST.value);
+    }
+
+    public void setUnhealthyOnDial() {
+        healthy.set(HealthyStatus.UNHEALTHY_ON_DIAL.value);
+    }
+
+    public void incErrorRate() {
+        boolean thresholdReached;
+        lock.lock();
+        try {
+            currentErrorCount++;
+            overallErrorCount++;
+
+            thresholdReached = currentErrorCount >= errorThreshold;
+
+            if (thresholdReached) {
+                setUnhealthy();
+                currentErrorCount = 0;
+            }
+        } finally {
+            lock.unlock();
+        }
+
+        if (thresholdReached && logger != null) {
+            FrostFSMessages.errorThresholdReached(logger, address, errorThreshold);
+        }
+    }
+
+    @Override
+    public int getCurrentErrorRate() {
+        lock.lock();
+        try {
+            return currentErrorCount;
+        } finally {
+            lock.unlock();
+        }
+    }
+
+    @Override
+    public long getOverallErrorRate() {
+        lock.lock();
+        try {
+            return overallErrorCount;
+        } finally {
+            lock.unlock();
+        }
+    }
+
+    @Override
+    public StatusSnapshot[] getMethodsStatus() {
+        StatusSnapshot[] result = new StatusSnapshot[methods.length];
+
+        for (int i = 0; i < result.length; i++) {
+            result[i] = methods[i].getSnapshot();
+        }
+
+        return result;
+    }
+}
+

client/src/main/java/info/frostfs/sdk/pool/ClientWrapper.java

@@ -0,0 +1,131 @@
+package info.frostfs.sdk.pool;
+
+import info.frostfs.sdk.FrostFSClient;
+import info.frostfs.sdk.enums.MethodIndex;
+import info.frostfs.sdk.exceptions.ResponseFrostFSException;
+import info.frostfs.sdk.exceptions.ValidationFrostFSException;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.utils.WaitUtil;
+import lombok.AccessLevel;
+import lombok.Getter;
+import org.apache.commons.lang3.StringUtils;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+import static info.frostfs.sdk.constants.ErrorConst.POOL_CLIENT_UNHEALTHY;
+
+@Getter
+public class ClientWrapper extends ClientStatusMonitor {
+    @Getter(value = AccessLevel.NONE)
+    private final Lock lock = new ReentrantLock();
+    private final SessionCache sessionCache;
+    private final WrapperPrm wrapperPrm;
+    private FrostFSClient client;
+
+    public ClientWrapper(WrapperPrm wrapperPrm, Pool pool) {
+        super(wrapperPrm.getLogger(), wrapperPrm.getAddress());
+        this.wrapperPrm = wrapperPrm;
+        setErrorThreshold(wrapperPrm.getErrorThreshold());
+
+        this.sessionCache = pool.getSessionCache();
+        this.client = new FrostFSClient(wrapperPrm, sessionCache);
+    }
+
+
+    public FrostFSClient getClient() {
+        lock.lock();
+        try {
+            if (isHealthy()) {
+                return client;
+            }
+            return null;
+        } finally {
+            lock.unlock();
+        }
+    }
+
+    public void dial(CallContext ctx) {
+        FrostFSClient client = getClient();
+        if (client == null) {
+            throw new ValidationFrostFSException(POOL_CLIENT_UNHEALTHY);
+        }
+        client.dial(ctx);
+    }
+
+    public void handleError(Exception exp) {
+        if (exp instanceof ResponseFrostFSException && ((ResponseFrostFSException) exp).getStatus() != null) {
+            switch (((ResponseFrostFSException) exp).getStatus().getCode()) {
+                case INTERNAL:
+                case WRONG_MAGIC_NUMBER:
+                case SIGNATURE_VERIFICATION_FAILURE:
+                case NODE_UNDER_MAINTENANCE:
+                    incErrorRate();
+            }
+            return;
+        }
+
+        incErrorRate();
+    }
+
+    private void scheduleGracefulClose() {
+        if (client == null) {
+            return;
+        }
+
+        WaitUtil.sleep(wrapperPrm.getGracefulCloseOnSwitchTimeout());
+        client.close();
+    }
+
+    public CompletableFuture<Boolean> restartIfUnhealthy(CallContext ctx) {
+        try {
+            client.getLocalNodeInfo(ctx);
+            return CompletableFuture.completedFuture(false);
+        } catch (Exception ignored) {
+        }
+
+        if (isDialed()) {
+            scheduleGracefulClose();
+        }
+
+        return CompletableFuture.completedFuture(restartClient(ctx));
+    }
+
+    private boolean restartClient(CallContext ctx) {
+        FrostFSClient newClient = null;
+        try {
+            newClient = new FrostFSClient(wrapperPrm, sessionCache);
+
+            var error = newClient.dial(ctx);
+            if (StringUtils.isNotBlank(error)) {
+                setUnhealthyOnDial();
+                newClient.close();
+                return true;
+            }
+
+            lock.lock();
+            client = newClient;
+            lock.unlock();
+        } catch (Exception exp) {
+            if (newClient != null) {
+                newClient.close();
+            }
+        }
+
+        try {
+            client.getLocalNodeInfo(ctx);
+        } catch (Exception exp) {
+            setUnhealthy();
+            return true;
+        }
+
+        setHealthy();
+        return false;
+    }
+
+    public void incRequests(long elapsed, MethodIndex method) {
+        var methodStat = getMethods()[method.ordinal()];
+        methodStat.incRequests(elapsed);
+    }
+}

client/src/main/java/info/frostfs/sdk/pool/InnerPool.java

@@ -0,0 +1,54 @@
+package info.frostfs.sdk.pool;
+
+import java.util.concurrent.locks.ReentrantLock;
+
+class InnerPool {
+    private static final int ATTEMPTS_COUNT = 3;
+    private final ReentrantLock lock = new ReentrantLock();
+    private final ClientWrapper[] clients;
+    private Sampler sampler;
+
+    InnerPool(Sampler sampler, ClientWrapper[] clients) {
+        this.sampler = sampler;
+        this.clients = clients;
+    }
+
+    Sampler getSampler() {
+        return sampler;
+    }
+
+    void setSampler(Sampler sampler) {
+        this.sampler = sampler;
+    }
+
+    ClientWrapper[] getClients() {
+        return clients;
+    }
+
+    ClientWrapper connection() {
+        lock.lock();
+        try {
+            if (clients.length == 1) {
+                ClientWrapper client = clients[0];
+                if (client.isHealthy()) {
+                    return client;
+                }
+            } else {
+                int attempts = ATTEMPTS_COUNT * clients.length;
+
+                for (int i = 0; i < attempts; i++) {
+                    int index = sampler.next();
+
+                    if (clients[index].isHealthy()) {
+                        return clients[index];
+                    }
+                }
+            }
+
+            return null;
+        } finally {
+            lock.unlock();
+        }
+    }
+}
+

client/src/main/java/info/frostfs/sdk/pool/MethodStatus.java

@@ -0,0 +1,31 @@
+package info.frostfs.sdk.pool;
+
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.concurrent.locks.ReentrantLock;
+
+@Setter
+@Getter
+public class MethodStatus {
+    @Getter(AccessLevel.NONE)
+    private final ReentrantLock lock = new ReentrantLock();
+    private final String name;
+    private StatusSnapshot snapshot;
+
+    public MethodStatus(String name) {
+        this.name = name;
+        this.snapshot = new StatusSnapshot();
+    }
+
+    void incRequests(long elapsed) {
+        lock.lock();
+        try {
+            snapshot.setAllTime(snapshot.getAllTime() + elapsed);
+            snapshot.setAllRequests(snapshot.getAllRequests() + 1);
+        } finally {
+            lock.unlock();
+        }
+    }
+}

client/src/main/java/info/frostfs/sdk/pool/NodeStatistic.java

@@ -0,0 +1,13 @@
+package info.frostfs.sdk.pool;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class NodeStatistic {
+    private String address;
+    private StatusSnapshot[] methods;
+    private long overallErrors;
+    private int currentErrors;
+}

client/src/main/java/info/frostfs/sdk/pool/NodesParam.java

@@ -0,0 +1,19 @@
+package info.frostfs.sdk.pool;
+
+import lombok.Getter;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Getter
+public class NodesParam {
+    private final int priority;
+    private final List<String> address;
+    private final List<Double> weight;
+
+    public NodesParam(int priority) {
+        this.priority = priority;
+        this.address = new ArrayList<>();
+        this.weight = new ArrayList<>();
+    }
+}

client/src/main/java/info/frostfs/sdk/pool/Pool.java

@@ -0,0 +1,558 @@
+package info.frostfs.sdk.pool;
+
+import frostfs.refs.Types;
+import info.frostfs.sdk.dto.chain.Chain;
+import info.frostfs.sdk.dto.container.Container;
+import info.frostfs.sdk.dto.container.ContainerId;
+import info.frostfs.sdk.dto.netmap.NetmapSnapshot;
+import info.frostfs.sdk.dto.netmap.NodeInfo;
+import info.frostfs.sdk.dto.object.ObjectFrostFS;
+import info.frostfs.sdk.dto.object.ObjectHeader;
+import info.frostfs.sdk.dto.object.ObjectId;
+import info.frostfs.sdk.dto.object.OwnerId;
+import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.exceptions.FrostFSException;
+import info.frostfs.sdk.exceptions.SessionExpiredFrostFSException;
+import info.frostfs.sdk.exceptions.SessionNotFoundFrostFSException;
+import info.frostfs.sdk.exceptions.ValidationFrostFSException;
+import info.frostfs.sdk.jdo.ECDsa;
+import info.frostfs.sdk.jdo.NetworkSettings;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainAdd;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainList;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainRemove;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerCreate;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerDelete;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerGet;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerGetAll;
+import info.frostfs.sdk.jdo.parameters.object.*;
+import info.frostfs.sdk.jdo.parameters.object.patch.PrmObjectPatch;
+import info.frostfs.sdk.jdo.parameters.object.patch.PrmRangeGet;
+import info.frostfs.sdk.jdo.parameters.object.patch.PrmRangeHashGet;
+import info.frostfs.sdk.jdo.parameters.session.PrmSessionCreate;
+import info.frostfs.sdk.jdo.pool.NodeParameters;
+import info.frostfs.sdk.jdo.pool.PoolInitParameters;
+import info.frostfs.sdk.jdo.result.ObjectHeaderResult;
+import info.frostfs.sdk.services.CommonClient;
+import info.frostfs.sdk.services.impl.rwhelper.ObjectWriter;
+import info.frostfs.sdk.services.impl.rwhelper.RangeReader;
+import info.frostfs.sdk.utils.FrostFSMessages;
+import info.frostfs.sdk.utils.WaitUtil;
+import lombok.Getter;
+import org.slf4j.Logger;
+
+import java.util.*;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.concurrent.locks.ReentrantLock;
+import java.util.function.Function;
+
+import static info.frostfs.sdk.Helper.getHexString;
+import static info.frostfs.sdk.constants.ErrorConst.*;
+import static info.frostfs.sdk.constants.PoolConst.*;
+
+@Getter
+public class Pool implements CommonClient {
+
+    private final ReentrantLock lock = new ReentrantLock();
+    private final ECDsa key;
+    private final SessionCache sessionCache;
+    private final long sessionTokenDuration;
+    private final RebalanceParameters rebalanceParams;
+    private final Function<String, ClientWrapper> clientBuilder;
+    private final Logger logger;
+    private InnerPool[] innerPools;
+    private Types.OwnerID ownerID;
+    private OwnerId ownerId;
+    private boolean disposedValue;
+    private long maxObjectSize;
+    private ClientStatus clientStatus;
+
+    public Pool(PoolInitParameters options) {
+        if (options == null || options.getKey() == null) {
+            throw new ValidationFrostFSException(
+                    String.format(
+                            PARAMS_ARE_MISSING_TEMPLATE,
+                            String.join(
+                                    FIELDS_DELIMITER_COMMA, PoolInitParameters.class.getName(), ECDsa.class.getName()
+                            )
+                    )
+            );
+        }
+
+        List<NodesParam> nodesParams = adjustNodeParams(options.getNodeParams());
+        SessionCache cache = new SessionCache(options.getSessionExpirationDuration());
+        fillDefaultInitParams(options, this);
+
+        this.key = options.getKey();
+        this.sessionCache = cache;
+        this.logger = options.getLogger();
+        this.sessionTokenDuration = options.getSessionExpirationDuration();
+
+        this.rebalanceParams = new RebalanceParameters(
+                nodesParams.toArray(new NodesParam[0]),
+                options.getHealthCheckTimeout(),
+                options.getClientRebalanceInterval(),
+                options.getSessionExpirationDuration());
+
+        this.clientBuilder = options.getClientBuilder();
+    }
+
+    private static List<NodesParam> adjustNodeParams(NodeParameters[] nodeParams) {
+        if (nodeParams == null || nodeParams.length == 0) {
+            throw new ValidationFrostFSException(POOL_PEERS_IS_MISSING);
+        }
+
+        Map<Integer, NodesParam> nodesParamsDict = new HashMap<>(nodeParams.length);
+        for (NodeParameters nodeParam : nodeParams) {
+            var nodesParam = nodesParamsDict
+                    .computeIfAbsent(nodeParam.getPriority(), k -> new NodesParam(nodeParam.getPriority()));
+            nodesParam.getAddress().add(nodeParam.getAddress());
+            nodesParam.getWeight().add(nodeParam.getWeight());
+        }
+
+        List<NodesParam> nodesParams = new ArrayList<>(nodesParamsDict.values());
+        nodesParams.sort(Comparator.comparingInt(NodesParam::getPriority));
+
+        for (NodesParam nodes : nodesParams) {
+            double[] newWeights = adjustWeights(nodes.getWeight().stream().mapToDouble(Double::doubleValue).toArray());
+            nodes.getWeight().clear();
+            for (double weight : newWeights) {
+                nodes.getWeight().add(weight);
+            }
+        }
+
+        return nodesParams;
+    }
+
+    private static double[] adjustWeights(double[] weights) {
+        double[] adjusted = new double[weights.length];
+        double sum = Arrays.stream(weights).sum();
+
+        if (sum > 0) {
+            for (int i = 0; i < weights.length; i++) {
+                adjusted[i] = weights[i] / sum;
+            }
+        }
+
+        return adjusted;
+    }
+
+    private static void fillDefaultInitParams(PoolInitParameters parameters, Pool pool) {
+        if (parameters.getSessionExpirationDuration() == 0) {
+            parameters.setSessionExpirationDuration(DEFAULT_SESSION_TOKEN_EXPIRATION_DURATION);
+        }
+
+        if (parameters.getErrorThreshold() == 0) {
+            parameters.setErrorThreshold(DEFAULT_ERROR_THRESHOLD);
+        }
+
+        if (parameters.getClientRebalanceInterval() <= 0) {
+            parameters.setClientRebalanceInterval(DEFAULT_REBALANCE_INTERVAL);
+        }
+
+        if (parameters.getGracefulCloseOnSwitchTimeout() <= 0) {
+            parameters.setGracefulCloseOnSwitchTimeout(DEFAULT_GRACEFUL_CLOSE_ON_SWITCH_TIMEOUT);
+        }
+
+        if (parameters.getHealthCheckTimeout() <= 0) {
+            parameters.setHealthCheckTimeout(DEFAULT_HEALTHCHECK_TIMEOUT);
+        }
+
+        if (parameters.getNodeDialTimeout() <= 0) {
+            parameters.setNodeDialTimeout(DEFAULT_DIAL_TIMEOUT);
+        }
+
+        if (parameters.getNodeStreamTimeout() <= 0) {
+            parameters.setNodeStreamTimeout(DEFAULT_STREAM_TIMEOUT);
+        }
+
+        if (parameters.getSessionExpirationDuration() == 0) {
+            parameters.setSessionExpirationDuration(DEFAULT_SESSION_TOKEN_EXPIRATION_DURATION);
+        }
+
+        if (parameters.getClientBuilder() == null) {
+            parameters.setClientBuilder(address -> {
+                WrapperPrm wrapperPrm = new WrapperPrm();
+                wrapperPrm.setAddress(address);
+                wrapperPrm.setKey(parameters.getKey());
+                wrapperPrm.setLogger(parameters.getLogger());
+                wrapperPrm.setDialTimeout(parameters.getNodeDialTimeout());
+                wrapperPrm.setStreamTimeout(parameters.getNodeStreamTimeout());
+                wrapperPrm.setErrorThreshold(parameters.getErrorThreshold());
+                wrapperPrm.setGracefulCloseOnSwitchTimeout(parameters.getGracefulCloseOnSwitchTimeout());
+                wrapperPrm.setInterceptors(parameters.getInterceptors());
+                return new ClientWrapper(wrapperPrm, pool);
+            });
+        }
+    }
+
+    private static SessionToken initSessionForDuration(CallContext ctx, ClientWrapper cw, long duration) {
+        var client = cw.getClient();
+        NetworkSettings networkInfo = client.getNetworkSettings(ctx);
+
+        long epoch = networkInfo.getEpochDuration();
+        long exp = (Long.MAX_VALUE - epoch < duration) ? Long.MAX_VALUE : (epoch + duration);
+
+        return client.createSession(new PrmSessionCreate(exp), ctx);
+    }
+
+    public static String formCacheKey(String address, String key) {
+        return address + key;
+    }
+
+    @Override
+    public String dial(CallContext ctx) {
+        InnerPool[] inner = new InnerPool[rebalanceParams.getNodesParams().length];
+        boolean atLeastOneHealthy = false;
+        int i = 0;
+
+        for (NodesParam nodeParams : rebalanceParams.getNodesParams()) {
+            ClientWrapper[] clients = new ClientWrapper[nodeParams.getWeight().size()];
+
+            for (int j = 0; j < nodeParams.getAddress().size(); j++) {
+                ClientWrapper client = clients[j] = clientBuilder.apply(nodeParams.getAddress().get(j));
+                boolean dialed = false;
+
+                try {
+                    client.dial(ctx);
+                    dialed = true;
+
+                    SessionToken token = initSessionForDuration(
+                            ctx, client, rebalanceParams.getSessionExpirationDuration()
+                    );
+                    String cacheKey = formCacheKey(
+                            nodeParams.getAddress().get(j),
+                            getHexString(key.getPublicKeyByte())
+                    );
+                    sessionCache.setValue(cacheKey, token);
+
+                    atLeastOneHealthy = true;
+                } catch (ValidationFrostFSException exp) {
+                    break;
+                } catch (Exception exp) {
+                    if (!dialed) {
+                        client.setUnhealthyOnDial();
+                    } else {
+                        client.setUnhealthy();
+                    }
+
+                    if (logger != null) {
+                        FrostFSMessages
+                                .sessionCreationError(logger, client.getWrapperPrm().getAddress(), exp.getMessage());
+                    }
+                }
+            }
+
+            Sampler sampler = new Sampler(nodeParams.getWeight().stream().mapToDouble(Double::doubleValue).toArray());
+            inner[i] = new InnerPool(sampler, clients);
+            i++;
+        }
+
+        if (!atLeastOneHealthy) {
+            return POOL_NODES_UNHEALTHY;
+        }
+
+        this.innerPools = inner;
+
+        NetworkSettings networkSettings = getNetworkSettings(ctx);
+
+        this.maxObjectSize = networkSettings.getMaxObjectSize();
+        startRebalance(ctx);
+
+        return null;
+    }
+
+    private ClientWrapper connection() {
+        for (InnerPool pool : innerPools) {
+            ClientWrapper client = pool.connection();
+            if (client != null) {
+                return client;
+            }
+        }
+
+        throw new FrostFSException(POOL_CLIENTS_UNHEALTHY);
+    }
+
+    public void close() {
+        if (innerPools != null) {
+            for (InnerPool innerPool : innerPools) {
+                for (ClientWrapper client : innerPool.getClients()) {
+                    if (client.isDialed()) {
+                        client.getClient().close();
+                    }
+                }
+            }
+        }
+    }
+
+    public void startRebalance(CallContext ctx) {
+        double[][] buffers = new double[rebalanceParams.getNodesParams().length][];
+
+        for (int i = 0; i < rebalanceParams.getNodesParams().length; i++) {
+            NodesParam parameters = rebalanceParams.getNodesParams()[i];
+            buffers[i] = new double[parameters.getWeight().size()];
+
+            CompletableFuture.runAsync(() -> {
+                WaitUtil.sleep(rebalanceParams.getClientRebalanceInterval());
+                updateNodesHealth(ctx, buffers);
+            });
+        }
+    }
+
+    private void updateNodesHealth(CallContext ctx, double[][] buffers) {
+        CompletableFuture<?>[] tasks = new CompletableFuture<?>[innerPools.length];
+
+        for (int i = 0; i < innerPools.length; i++) {
+            double[] bufferWeights = buffers[i];
+            int finalI = i;
+            tasks[i] = CompletableFuture.runAsync(() -> updateInnerNodesHealth(ctx, finalI, bufferWeights));
+        }
+
+        CompletableFuture.allOf(tasks).join();
+    }
+
+    private void updateInnerNodesHealth(CallContext ctx, int poolIndex, double[] bufferWeights) {
+        if (poolIndex > innerPools.length - 1) {
+            return;
+        }
+
+        InnerPool pool = innerPools[poolIndex];
+        RebalanceParameters options = rebalanceParams;
+        int[] healthyChanged = {0};
+
+        CompletableFuture<?>[] tasks = new CompletableFuture<?>[pool.getClients().length];
+
+        for (int j = 0; j < pool.getClients().length; j++) {
+            ClientWrapper client = pool.getClients()[j];
+            AtomicBoolean healthy = new AtomicBoolean(false);
+            AtomicReference<String> error = new AtomicReference<>();
+            AtomicBoolean changed = new AtomicBoolean(false);
+
+            int finalJ = j;
+            tasks[j] = client.restartIfUnhealthy(ctx).handle((unused, throwable) -> {
+                if (throwable != null) {
+                    error.set(throwable.getMessage());
+                    bufferWeights[finalJ] = 0;
+                    sessionCache.deleteByPrefix(client.getAddress());
+                } else {
+                    changed.set(unused);
+                    healthy.set(true);
+                    bufferWeights[finalJ] = options.getNodesParams()[poolIndex].getWeight().get(finalJ);
+                }
+                return null;
+            }).thenRun(() -> {
+                if (changed.get()) {
+                    if (error.get() != null && logger != null) {
+                        FrostFSMessages.healthChanged(logger, client.getAddress(), healthy.get(), error.get());
+                    }
+                    healthyChanged[0] = 1;
+                }
+            });
+        }
+
+        CompletableFuture.allOf(tasks).thenRun(() -> {
+            if (healthyChanged[0] == 1) {
+                double[] probabilities = adjustWeights(bufferWeights);
+                lock.lock();
+                try {
+                    pool.setSampler(new Sampler(probabilities));
+                } finally {
+                    lock.unlock();
+                }
+            }
+        });
+    }
+
+    private boolean checkSessionTokenErr(Exception error, String address) {
+        if (error == null) {
+            return false;
+        }
+
+        if (error instanceof SessionNotFoundFrostFSException || error instanceof SessionExpiredFrostFSException) {
+            sessionCache.deleteByPrefix(address);
+            return true;
+        }
+
+        return false;
+    }
+
+    public Statistic statistic() {
+        if (innerPools == null) {
+            throw new ValidationFrostFSException(POOL_NOT_DIALED);
+        }
+
+        Statistic statistics = new Statistic();
+
+        for (InnerPool inner : innerPools) {
+            int valueIndex = 0;
+            String[] nodes = new String[inner.getClients().length];
+
+            lock.lock();
+            try {
+                for (ClientWrapper client : inner.getClients()) {
+                    if (client.isHealthy()) {
+                        nodes[valueIndex] = client.getAddress();
+                    }
+
+                    NodeStatistic node = new NodeStatistic();
+                    node.setAddress(client.getAddress());
+                    node.setMethods(client.getMethodsStatus());
+                    node.setOverallErrors(client.getOverallErrorRate());
+                    node.setCurrentErrors(client.getCurrentErrorRate());
+
+                    statistics.getNodes().add(node);
+                    valueIndex++;
+                    statistics.setOverallErrors(statistics.getOverallErrors() + node.getOverallErrors());
+                }
+
+                if (statistics.getCurrentNodes() == null || statistics.getCurrentNodes().length == 0) {
+                    statistics.setCurrentNodes(nodes);
+                }
+            } finally {
+                lock.unlock();
+            }
+        }
+
+        return statistics;
+    }
+
+    @Override
+    public Container getContainer(PrmContainerGet args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().getContainer(args, ctx);
+    }
+
+    @Override
+    public List<ContainerId> listContainers(PrmContainerGetAll args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().listContainers(args, ctx);
+    }
+
+    @Override
+    public ContainerId createContainer(PrmContainerCreate args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().createContainer(args, ctx);
+    }
+
+    @Override
+    public void deleteContainer(PrmContainerDelete args, CallContext ctx) {
+        ClientWrapper client = connection();
+        client.getClient().deleteContainer(args, ctx);
+    }
+
+    @Override
+    public ObjectHeaderResult getObjectHead(PrmObjectHeadGet args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().getObjectHead(args, ctx);
+    }
+
+    @Override
+    public ObjectFrostFS getObject(PrmObjectGet args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().getObject(args, ctx);
+    }
+
+    @Override
+    public ObjectWriter putObject(PrmObjectPut args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().putObject(args, ctx);
+    }
+
+    @Override
+    public ObjectId putClientCutObject(PrmObjectClientCutPut args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().putClientCutObject(args, ctx);
+    }
+
+    @Override
+    public ObjectId putSingleObject(PrmObjectSinglePut args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().putSingleObject(args, ctx);
+    }
+
+    @Override
+    public void deleteObject(PrmObjectDelete args, CallContext ctx) {
+        ClientWrapper client = connection();
+        client.getClient().deleteObject(args, ctx);
+    }
+
+    @Override
+    public Iterable<ObjectId> searchObjects(PrmObjectSearch args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().searchObjects(args, ctx);
+    }
+
+    @Override
+    public RangeReader getRange(PrmRangeGet args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().getRange(args, ctx);
+    }
+
+    @Override
+    public byte[][] getRangeHash(PrmRangeHashGet args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().getRangeHash(args, ctx);
+    }
+
+    @Override
+    public ObjectId patchObject(PrmObjectPatch args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().patchObject(args, ctx);
+    }
+
+    @Override
+    public byte[] addChain(PrmApeChainAdd args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().addChain(args, ctx);
+    }
+
+    @Override
+    public void removeChain(PrmApeChainRemove args, CallContext ctx) {
+        ClientWrapper client = connection();
+        client.getClient().removeChain(args, ctx);
+    }
+
+    @Override
+    public List<Chain> listChains(PrmApeChainList args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().listChains(args, ctx);
+    }
+
+    @Override
+    public NetmapSnapshot getNetmapSnapshot(CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().getNetmapSnapshot(ctx);
+    }
+
+    @Override
+    public NodeInfo getLocalNodeInfo(CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().getLocalNodeInfo(ctx);
+    }
+
+    @Override
+    public NetworkSettings getNetworkSettings(CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().getNetworkSettings(ctx);
+    }
+
+    @Override
+    public SessionToken createSession(PrmSessionCreate args, CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().createSession(args, ctx);
+    }
+
+    @Override
+    public ObjectId calculateObjectId(ObjectHeader header) {
+        ClientWrapper client = connection();
+        return client.getClient().calculateObjectId(header);
+    }
+
+    @Override
+    public frostfs.accounting.Types.Decimal getBalance(CallContext ctx) {
+        ClientWrapper client = connection();
+        return client.getClient().getBalance(ctx);
+    }
+}

client/src/main/java/info/frostfs/sdk/pool/RebalanceParameters.java

@@ -0,0 +1,15 @@
+package info.frostfs.sdk.pool;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@AllArgsConstructor
+public class RebalanceParameters {
+    private NodesParam[] nodesParams;
+    private long nodeRequestTimeout;
+    private long clientRebalanceInterval;
+    private long sessionExpirationDuration;
+}

client/src/main/java/info/frostfs/sdk/pool/RequestInfo.java

@@ -0,0 +1,15 @@
+package info.frostfs.sdk.pool;
+
+import info.frostfs.sdk.enums.MethodIndex;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.time.Duration;
+
+@Getter
+@Setter
+public class RequestInfo {
+    private String address;
+    private MethodIndex methodIndex;
+    private Duration elapsed;
+}

client/src/main/java/info/frostfs/sdk/pool/Sampler.java

@@ -0,0 +1,77 @@
+package info.frostfs.sdk.pool;
+
+import java.util.ArrayList;
+import java.util.Random;
+
+class Sampler {
+    private final Object lock = new Object();
+    private final Random random = new Random();
+    private final double[] probabilities;
+    private final int[] alias;
+
+    Sampler(double[] probabilities) {
+        ArrayList<Integer> small = new ArrayList<>();
+        ArrayList<Integer> large = new ArrayList<>();
+
+        int n = probabilities.length;
+
+        this.probabilities = new double[n];
+        this.alias = new int[n];
+
+        // Compute scaled probabilities.
+        double[] p = new double[n];
+
+        for (int i = 0; i < n; i++) {
+            p[i] = probabilities[i] * n;
+            if (p[i] < 1) {
+                small.add(i);
+            } else {
+                large.add(i);
+            }
+        }
+
+        while (!small.isEmpty() && !large.isEmpty()) {
+            int l = small.remove(small.size() - 1);
+            int g = large.remove(large.size() - 1);
+
+            this.probabilities[l] = p[l];
+            this.alias[l] = g;
+
+            p[g] = p[g] + p[l] - 1;
+
+            if (p[g] < 1) {
+                small.add(g);
+            } else {
+                large.add(g);
+            }
+        }
+
+        while (!large.isEmpty()) {
+            int g = large.remove(large.size() - 1);
+            this.probabilities[g] = 1;
+        }
+
+        while (!small.isEmpty()) {
+            int l = small.remove(small.size() - 1);
+            probabilities[l] = 1;
+        }
+    }
+
+    int next() {
+        int n = alias.length;
+
+        int i;
+        double f;
+        synchronized (lock) {
+            i = random.nextInt(n);
+            f = random.nextDouble();
+        }
+
+        if (f < probabilities[i]) {
+            return i;
+        }
+
+        return alias[i];
+    }
+}
+

client/src/main/java/info/frostfs/sdk/pool/SessionCache.java

@@ -0,0 +1,37 @@
+package info.frostfs.sdk.pool;
+
+import info.frostfs.sdk.dto.session.SessionToken;
+import org.apache.commons.lang3.StringUtils;
+
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+
+public class SessionCache {
+    private final ConcurrentMap<String, SessionToken> cache = new ConcurrentHashMap<>();
+    private final long tokenDuration;
+    private long currentEpoch;
+
+    public SessionCache(long sessionExpirationDuration) {
+        this.tokenDuration = sessionExpirationDuration;
+    }
+
+    public boolean contains(String key) {
+        return cache.containsKey(key);
+    }
+
+    public SessionToken tryGetValue(String key) {
+        return StringUtils.isBlank(key) ? null : cache.get(key);
+    }
+
+    public void setValue(String key, SessionToken value) {
+        if (key != null) {
+            cache.put(key, value);
+        }
+    }
+
+    public void deleteByPrefix(String prefix) {
+        cache.keySet().removeIf(key -> key.startsWith(prefix));
+    }
+}
+
+

client/src/main/java/info/frostfs/sdk/pool/Statistic.java

@@ -0,0 +1,15 @@
+package info.frostfs.sdk.pool;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Getter
+@Setter
+public class Statistic {
+    private long overallErrors;
+    private List<NodeStatistic> nodes = new ArrayList<>();
+    private String[] currentNodes;
+}

client/src/main/java/info/frostfs/sdk/pool/StatusSnapshot.java

@@ -0,0 +1,13 @@
+package info.frostfs.sdk.pool;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class StatusSnapshot {
+    private long allTime;
+    private long allRequests;
+}
+
+

client/src/main/java/info/frostfs/sdk/pool/WorkList.java

@@ -0,0 +1,22 @@
+package info.frostfs.sdk.pool;
+
+import java.util.ArrayList;
+import java.util.List;
+
+class WorkList {
+    private final List<Integer> elements = new ArrayList<>();
+
+    private int getLength() {
+        return elements.size();
+    }
+
+    private void add(int element) {
+        elements.add(element);
+    }
+
+    private int remove() {
+        int last = elements.get(elements.size() - 1);
+        elements.remove(elements.size() - 1);
+        return last;
+    }
+}

client/src/main/java/info/frostfs/sdk/pool/WrapperPrm.java

@@ -0,0 +1,26 @@
+package info.frostfs.sdk.pool;
+
+import info.frostfs.sdk.jdo.ECDsa;
+import io.grpc.ClientInterceptors;
+import io.grpc.ManagedChannelBuilder;
+import lombok.Getter;
+import lombok.Setter;
+import org.slf4j.Logger;
+
+import java.util.Collection;
+
+@Getter
+@Setter
+public class WrapperPrm {
+    private Logger logger;
+    private String address;
+    private ECDsa key;
+    private long dialTimeout;
+    private long streamTimeout;
+    private int errorThreshold;
+    private Runnable responseInfoCallback;
+    private Runnable poolRequestInfoCallback;
+    private ManagedChannelBuilder<?> grpcChannelOptions;
+    private long gracefulCloseOnSwitchTimeout;
+    private Collection<ClientInterceptors> interceptors;
+}

client/src/main/java/info/frostfs/sdk/services/AccountingClient.java

@@ -0,0 +1,8 @@
+package info.frostfs.sdk.services;
+
+import frostfs.accounting.Types;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+
+public interface AccountingClient {
+    Types.Decimal getBalance(CallContext ctx);
+}

client/src/main/java/info/frostfs/sdk/services/ApeManagerClient.java

@@ -0,0 +1,17 @@
+package info.frostfs.sdk.services;
+
+import info.frostfs.sdk.dto.chain.Chain;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainAdd;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainList;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainRemove;
+
+import java.util.List;
+
+public interface ApeManagerClient {
+    byte[] addChain(PrmApeChainAdd args, CallContext ctx);
+
+    void removeChain(PrmApeChainRemove args, CallContext ctx);
+
+    List<Chain> listChains(PrmApeChainList args, CallContext ctx);
+}

client/src/main/java/info/frostfs/sdk/services/CommonClient.java

@@ -0,0 +1,9 @@
+package info.frostfs.sdk.services;
+
+import info.frostfs.sdk.jdo.parameters.CallContext;
+
+public interface CommonClient extends
+        AccountingClient, ApeManagerClient, ContainerClient, NetmapClient, ObjectClient, SessionClient, ToolsClient {
+
+    String dial(CallContext ctx);
+}

client/src/main/java/info/frostfs/sdk/services/ContainerClient.java

@@ -2,15 +2,20 @@ package info.frostfs.sdk.services;
 
 import info.frostfs.sdk.dto.container.Container;
 import info.frostfs.sdk.dto.container.ContainerId;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerCreate;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerDelete;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerGet;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerGetAll;
 
 import java.util.List;
 
 public interface ContainerClient {
-    Container getContainer(ContainerId cid);
+    Container getContainer(PrmContainerGet args, CallContext ctx);
 
-    List<ContainerId> listContainers();
+    List<ContainerId> listContainers(PrmContainerGetAll args, CallContext ctx);
 
-    ContainerId createContainer(Container container);
+    ContainerId createContainer(PrmContainerCreate args, CallContext ctx);
 
-    void deleteContainer(ContainerId cid);
+    void deleteContainer(PrmContainerDelete args, CallContext ctx);
 }

client/src/main/java/info/frostfs/sdk/services/ContextAccessor.java

@@ -10,5 +10,4 @@ public class ContextAccessor {
     public ContextAccessor(ClientEnvironment context) {
         this.context = context;
     }
-
 }

client/src/main/java/info/frostfs/sdk/services/NetmapClient.java

@@ -3,11 +3,12 @@ package info.frostfs.sdk.services;
 import info.frostfs.sdk.dto.netmap.NetmapSnapshot;
 import info.frostfs.sdk.dto.netmap.NodeInfo;
 import info.frostfs.sdk.jdo.NetworkSettings;
+import info.frostfs.sdk.jdo.parameters.CallContext;
 
 public interface NetmapClient {
-    NetmapSnapshot getNetmapSnapshot();
+    NetmapSnapshot getNetmapSnapshot(CallContext ctx);
 
-    NodeInfo getLocalNodeInfo();
+    NodeInfo getLocalNodeInfo(CallContext ctx);
 
-    NetworkSettings getNetworkSettings();
+    NetworkSettings getNetworkSettings(CallContext ctx);
 }

client/src/main/java/info/frostfs/sdk/services/ObjectClient.java

@@ -1,22 +1,34 @@
 package info.frostfs.sdk.services;
 
-import info.frostfs.sdk.dto.container.ContainerId;
-import info.frostfs.sdk.dto.object.ObjectFilter;
 import info.frostfs.sdk.dto.object.ObjectFrostFS;
-import info.frostfs.sdk.dto.object.ObjectHeader;
 import info.frostfs.sdk.dto.object.ObjectId;
-import info.frostfs.sdk.jdo.PutObjectParameters;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.jdo.parameters.object.*;
+import info.frostfs.sdk.jdo.parameters.object.patch.PrmObjectPatch;
+import info.frostfs.sdk.jdo.parameters.object.patch.PrmRangeGet;
+import info.frostfs.sdk.jdo.parameters.object.patch.PrmRangeHashGet;
+import info.frostfs.sdk.jdo.result.ObjectHeaderResult;
+import info.frostfs.sdk.services.impl.rwhelper.ObjectWriter;
+import info.frostfs.sdk.services.impl.rwhelper.RangeReader;
 
 public interface ObjectClient {
-    ObjectHeader getObjectHead(ContainerId containerId, ObjectId objectId);
+    ObjectHeaderResult getObjectHead(PrmObjectHeadGet args, CallContext ctx);
 
-    ObjectFrostFS getObject(ContainerId containerId, ObjectId objectId);
+    ObjectFrostFS getObject(PrmObjectGet args, CallContext ctx);
 
-    ObjectId putObject(PutObjectParameters parameters);
+    ObjectWriter putObject(PrmObjectPut args, CallContext ctx);
 
-    ObjectId putSingleObject(ObjectFrostFS objectFrostFS);
+    ObjectId putClientCutObject(PrmObjectClientCutPut args, CallContext ctx);
 
-    void deleteObject(ContainerId containerId, ObjectId objectId);
+    ObjectId putSingleObject(PrmObjectSinglePut args, CallContext ctx);
 
-    Iterable<ObjectId> searchObjects(ContainerId cid, ObjectFilter<?>... filters);
+    void deleteObject(PrmObjectDelete args, CallContext ctx);
+
+    Iterable<ObjectId> searchObjects(PrmObjectSearch args, CallContext ctx);
+
+    RangeReader getRange(PrmRangeGet args, CallContext ctx);
+
+    byte[][] getRangeHash(PrmRangeHashGet args, CallContext ctx);
+
+    ObjectId patchObject(PrmObjectPatch args, CallContext ctx);
 }

client/src/main/java/info/frostfs/sdk/services/SessionClient.java

@@ -1,7 +1,9 @@
 package info.frostfs.sdk.services;
 
 import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.jdo.parameters.session.PrmSessionCreate;
 
 public interface SessionClient {
-    SessionToken createSession(long expiration);
+    SessionToken createSession(PrmSessionCreate args, CallContext ctx);
 }

client/src/main/java/info/frostfs/sdk/services/SessionTools.java

@@ -1,9 +1,9 @@
 package info.frostfs.sdk.services;
 
-import frostfs.session.Types;
 import info.frostfs.sdk.dto.session.SessionToken;
 import info.frostfs.sdk.jdo.ClientEnvironment;
+import info.frostfs.sdk.jdo.parameters.CallContext;
 
 public interface SessionTools {
-    Types.SessionToken getOrCreateSession(SessionToken token, ClientEnvironment env);
+    SessionToken getOrCreateSession(ClientEnvironment env, CallContext ctx);
 }

client/src/main/java/info/frostfs/sdk/services/impl/AccountingClientImpl.java

@@ -0,0 +1,48 @@
+package info.frostfs.sdk.services.impl;
+
+import frostfs.accounting.AccountingServiceGrpc;
+import frostfs.accounting.Service;
+import frostfs.accounting.Types;
+import info.frostfs.sdk.jdo.ClientEnvironment;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.mappers.object.OwnerIdMapper;
+import info.frostfs.sdk.services.AccountingClient;
+import info.frostfs.sdk.services.ContextAccessor;
+import info.frostfs.sdk.tools.RequestConstructor;
+import info.frostfs.sdk.tools.RequestSigner;
+import info.frostfs.sdk.tools.Verifier;
+
+import static info.frostfs.sdk.utils.DeadLineUtil.deadLineAfter;
+
+public class AccountingClientImpl extends ContextAccessor implements AccountingClient {
+    private final AccountingServiceGrpc.AccountingServiceBlockingStub serviceBlockingStub;
+
+    public AccountingClientImpl(ClientEnvironment clientEnvironment) {
+        super(clientEnvironment);
+        this.serviceBlockingStub = AccountingServiceGrpc.newBlockingStub(getContext().getChannel());
+    }
+
+    @Override
+    public Types.Decimal getBalance(CallContext ctx) {
+        var request = createGetRequest();
+
+        var service = deadLineAfter(serviceBlockingStub, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.balance(request);
+
+        Verifier.checkResponse(response);
+        return response.getBody().getBalance();
+    }
+
+    private Service.BalanceRequest createGetRequest() {
+        var body = Service.BalanceRequest.Body.newBuilder()
+                .setOwnerId(OwnerIdMapper.toGrpcMessage(getContext().getOwnerId()))
+                .build();
+        var request = Service.BalanceRequest.newBuilder()
+                .setBody(body);
+
+        RequestConstructor.addMetaHeader(request);
+        RequestSigner.sign(request, getContext().getKey());
+
+        return request.build();
+    }
+}

client/src/main/java/info/frostfs/sdk/services/impl/ApeManagerClientImpl.java

@@ -0,0 +1,117 @@
+package info.frostfs.sdk.services.impl;
+
+import com.google.protobuf.ByteString;
+import frostfs.ape.Types;
+import frostfs.apemanager.APEManagerServiceGrpc;
+import frostfs.apemanager.Service;
+import info.frostfs.sdk.dto.chain.Chain;
+import info.frostfs.sdk.jdo.ClientEnvironment;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainAdd;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainList;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainRemove;
+import info.frostfs.sdk.mappers.chain.ChainMapper;
+import info.frostfs.sdk.mappers.chain.ChainTargetMapper;
+import info.frostfs.sdk.services.ApeManagerClient;
+import info.frostfs.sdk.services.ContextAccessor;
+import info.frostfs.sdk.tools.RequestConstructor;
+import info.frostfs.sdk.tools.RequestSigner;
+import info.frostfs.sdk.tools.Verifier;
+
+import java.util.List;
+
+import static info.frostfs.sdk.utils.DeadLineUtil.deadLineAfter;
+import static info.frostfs.sdk.utils.Validator.validate;
+
+public class ApeManagerClientImpl extends ContextAccessor implements ApeManagerClient {
+    private final APEManagerServiceGrpc.APEManagerServiceBlockingStub apeManagerServiceClient;
+
+    public ApeManagerClientImpl(ClientEnvironment clientEnvironment) {
+        super(clientEnvironment);
+        this.apeManagerServiceClient = APEManagerServiceGrpc.newBlockingStub(getContext().getChannel());
+    }
+
+    @Override
+    public byte[] addChain(PrmApeChainAdd args, CallContext ctx) {
+        validate(args);
+
+        var request = createAddChainRequest(args);
+
+        var service = deadLineAfter(apeManagerServiceClient, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.addChain(request);
+
+        Verifier.checkResponse(response);
+
+        return response.getBody().getChainId().toByteArray();
+    }
+
+    @Override
+    public void removeChain(PrmApeChainRemove args, CallContext ctx) {
+        validate(args);
+
+        var request = createRemoveChainRequest(args);
+
+        var service = deadLineAfter(apeManagerServiceClient, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.removeChain(request);
+
+        Verifier.checkResponse(response);
+    }
+
+    @Override
+    public List<Chain> listChains(PrmApeChainList args, CallContext ctx) {
+        validate(args);
+
+        var request = createListChainsRequest(args);
+
+        var service = deadLineAfter(apeManagerServiceClient, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.listChains(request);
+
+        Verifier.checkResponse(response);
+
+        return ChainMapper.toModels(response.getBody().getChainsList());
+    }
+
+    private Service.AddChainRequest createAddChainRequest(PrmApeChainAdd args) {
+        var chainGrpc = Types.Chain.newBuilder()
+                .setRaw(ByteString.copyFrom(args.getChain().getRaw()))
+                .build();
+        var body = Service.AddChainRequest.Body.newBuilder()
+                .setChain(chainGrpc)
+                .setTarget(ChainTargetMapper.toGrpcMessage(args.getChainTarget()))
+                .build();
+        var request = Service.AddChainRequest.newBuilder()
+                .setBody(body);
+
+        RequestConstructor.addMetaHeader(request, args.getXHeaders());
+        RequestSigner.sign(request, getContext().getKey());
+
+        return request.build();
+    }
+
+    private Service.RemoveChainRequest createRemoveChainRequest(PrmApeChainRemove args) {
+        var body = Service.RemoveChainRequest.Body.newBuilder()
+                .setChainId(ByteString.copyFrom(args.getChain().getRaw()))
+                .setTarget(ChainTargetMapper.toGrpcMessage(args.getChainTarget()))
+                .build();
+        var request = Service.RemoveChainRequest.newBuilder()
+                .setBody(body);
+
+        RequestConstructor.addMetaHeader(request, args.getXHeaders());
+        RequestSigner.sign(request, getContext().getKey());
+
+        return request.build();
+    }
+
+    private Service.ListChainsRequest createListChainsRequest(PrmApeChainList args) {
+        var body = Service.ListChainsRequest.Body.newBuilder()
+                .setTarget(ChainTargetMapper.toGrpcMessage(args.getChainTarget()))
+                .build();
+        var request = Service.ListChainsRequest.newBuilder()
+                .setBody(body);
+
+        RequestConstructor.addMetaHeader(request, args.getXHeaders());
+        RequestSigner.sign(request, getContext().getKey());
+
+        return request.build();
+    }
+}

client/src/main/java/info/frostfs/sdk/services/impl/ContainerClientImpl.java

@@ -10,9 +10,14 @@ import info.frostfs.sdk.enums.StatusCode;
 import info.frostfs.sdk.enums.WaitExpects;
 import info.frostfs.sdk.exceptions.ResponseFrostFSException;
 import info.frostfs.sdk.exceptions.TimeoutFrostFSException;
-import info.frostfs.sdk.exceptions.ValidationFrostFSException;
 import info.frostfs.sdk.jdo.ClientEnvironment;
-import info.frostfs.sdk.jdo.WaitParameters;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.jdo.parameters.PrmWait;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerCreate;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerDelete;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerGet;
+import info.frostfs.sdk.jdo.parameters.container.PrmContainerGetAll;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
 import info.frostfs.sdk.mappers.container.ContainerIdMapper;
 import info.frostfs.sdk.mappers.container.ContainerMapper;
 import info.frostfs.sdk.mappers.netmap.VersionMapper;
@@ -29,8 +34,11 @@ import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
 
-import static info.frostfs.sdk.constants.ErrorConst.PARAM_IS_MISSING_TEMPLATE;
+import static info.frostfs.sdk.constants.AttributeConst.DISABLE_HOMOMORPHIC_HASHING_ATTRIBUTE;
+import static info.frostfs.sdk.utils.DeadLineUtil.deadLineAfter;
+import static info.frostfs.sdk.utils.Validator.validate;
 import static java.util.Objects.isNull;
+import static java.util.Objects.nonNull;
 
 public class ContainerClientImpl extends ContextAccessor implements ContainerClient {
     private final ContainerServiceGrpc.ContainerServiceBlockingStub serviceBlockingStub;
@@ -42,29 +50,33 @@ public class ContainerClientImpl extends ContextAccessor implements ContainerCli
         this.sessionTools = new SessionToolsImpl(clientEnvironment);
     }
 
-    public frostfs.session.Types.SessionToken getOrCreateSession(SessionToken sessionToken) {
+    public SessionToken getOrCreateSession(SessionContext sessionContext, CallContext ctx) {
-        return sessionTools.getOrCreateSession(sessionToken, getContext());
+        return isNull(sessionContext.getSessionToken())
+                ? sessionTools.getOrCreateSession(getContext(), ctx)
+                : sessionContext.getSessionToken();
     }
 
     @Override
-    public Container getContainer(ContainerId cid) {
+    public Container getContainer(PrmContainerGet args, CallContext ctx) {
-        if (isNull(cid)) {
+        validate(args);
-            throw new ValidationFrostFSException(String.format(PARAM_IS_MISSING_TEMPLATE, ContainerId.class.getName()));
-        }
 
-        var request = createGetRequest(ContainerIdMapper.toGrpcMessage(cid), null);
+        var request = createGetRequest(args);
 
-        var response = serviceBlockingStub.get(request);
+        var service = deadLineAfter(serviceBlockingStub, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.get(request);
 
         Verifier.checkResponse(response);
         return ContainerMapper.toModel(response.getBody().getContainer());
     }
 
     @Override
-    public List<ContainerId> listContainers() {
+    public List<ContainerId> listContainers(PrmContainerGetAll args, CallContext ctx) {
-        var request = createListRequest(null);
+        validate(args);
 
-        var response = serviceBlockingStub.list(request);
+        var request = createListRequest(args);
+
+        var service = deadLineAfter(serviceBlockingStub, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.list(request);
 
         Verifier.checkResponse(response);
 
@@ -74,43 +86,39 @@ public class ContainerClientImpl extends ContextAccessor implements ContainerCli
     }
 
     @Override
-    public ContainerId createContainer(Container container) {
+    public ContainerId createContainer(PrmContainerCreate args, CallContext ctx) {
-        if (isNull(container)) {
+        validate(args);
-            throw new ValidationFrostFSException(String.format(PARAM_IS_MISSING_TEMPLATE, Container.class.getName()));
-        }
 
-        var grpcContainer = ContainerMapper.toGrpcMessage(container);
+        var request = createPutRequest(args, ctx);
-        var request = createPutRequest(grpcContainer, null);
 
-        var response = serviceBlockingStub.put(request);
+        var service = deadLineAfter(serviceBlockingStub, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.put(request);
 
         Verifier.checkResponse(response);
 
-        waitForContainer(WaitExpects.EXISTS, response.getBody().getContainerId(), null);
+        waitForContainer(WaitExpects.EXISTS, response.getBody().getContainerId(), args.getWaitParams());
 
         return new ContainerId(response.getBody().getContainerId().getValue().toByteArray());
     }
 
     @Override
-    public void deleteContainer(ContainerId cid) {
+    public void deleteContainer(PrmContainerDelete args, CallContext ctx) {
-        if (isNull(cid)) {
+        validate(args);
-            throw new ValidationFrostFSException(String.format(PARAM_IS_MISSING_TEMPLATE, ContainerId.class.getName()));
-        }
 
-        var grpcContainerId = ContainerIdMapper.toGrpcMessage(cid);
+        var request = createDeleteRequest(args, ctx);
-        var request = createDeleteRequest(grpcContainerId, null);
 
-        var response = serviceBlockingStub.delete(request);
+        var service = deadLineAfter(serviceBlockingStub, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.delete(request);
 
         Verifier.checkResponse(response);
 
-        waitForContainer(WaitExpects.REMOVED, request.getBody().getContainerId(), null);
+        waitForContainer(WaitExpects.REMOVED, request.getBody().getContainerId(), args.getWaitParams());
     }
 
-    private void waitForContainer(WaitExpects expect, Types.ContainerID id, WaitParameters waitParams) {
+    private void waitForContainer(WaitExpects expect, Types.ContainerID cid, PrmWait waitParams) {
-        var request = createGetRequest(id, null);
+        var request = createGetRequest(cid, null);
 
-        waitParams = isNull(waitParams) ? new WaitParameters() : waitParams;
+        waitParams = isNull(waitParams) ? new PrmWait() : waitParams;
         var deadLine = waitParams.getDeadline();
 
         while (true) {
@@ -145,9 +153,12 @@ public class ContainerClientImpl extends ContextAccessor implements ContainerCli
         }
     }
 
+    private Service.GetRequest createGetRequest(PrmContainerGet args) {
+        var cid = ContainerIdMapper.toGrpcMessage(args.getContainerId());
+        return createGetRequest(cid, args.getXHeaders());
+    }
 
-    private Service.GetRequest createGetRequest(Types.ContainerID cid,
+    private Service.GetRequest createGetRequest(Types.ContainerID cid, Map<String, String> xHeaders) {
-                                                Map<String, String> xHeaders) {
         var body = Service.GetRequest.Body.newBuilder()
                 .setContainerId(cid)
                 .build();
@@ -160,22 +171,22 @@ public class ContainerClientImpl extends ContextAccessor implements ContainerCli
         return request.build();
     }
 
-    private Service.ListRequest createListRequest(Map<String, String> xHeaders) {
+    private Service.ListRequest createListRequest(PrmContainerGetAll args) {
         var body = Service.ListRequest.Body.newBuilder()
                 .setOwnerId(OwnerIdMapper.toGrpcMessage(getContext().getOwnerId()))
                 .build();
         var request = Service.ListRequest.newBuilder()
                 .setBody(body);
 
-        RequestConstructor.addMetaHeader(request, xHeaders);
+        RequestConstructor.addMetaHeader(request, args.getXHeaders());
         RequestSigner.sign(request, getContext().getKey());
 
         return request.build();
     }
 
-    private Service.PutRequest createPutRequest(frostfs.container.Types.Container container,
+    private Service.PutRequest createPutRequest(PrmContainerCreate args, CallContext ctx) {
-                                                Map<String, String> xHeaders) {
+        syncContainerWithNetwork(args.getContainer(), ctx);
-        container = container.toBuilder()
+        var container = ContainerMapper.toGrpcMessage(args.getContainer()).toBuilder()
                 .setOwnerId(OwnerIdMapper.toGrpcMessage(getContext().getOwnerId()))
                 .setVersion(VersionMapper.toGrpcMessage(getContext().getVersion()))
                 .build();
@@ -187,9 +198,8 @@ public class ContainerClientImpl extends ContextAccessor implements ContainerCli
         var request = Service.PutRequest.newBuilder()
                 .setBody(body);
 
-        var sessionToken = getOrCreateSession(null);
+        var sessionToken = getOrCreateSession(args, ctx);
-
+        var protoToken = RequestConstructor.createContainerTokenContext(
-        sessionToken = RequestConstructor.createContainerTokenContext(
                 sessionToken,
                 null,
                 frostfs.session.Types.ContainerSessionContext.Verb.PUT,
@@ -197,14 +207,15 @@ public class ContainerClientImpl extends ContextAccessor implements ContainerCli
                 getContext().getKey()
         );
 
-        RequestConstructor.addMetaHeader(request, xHeaders, sessionToken);
+        RequestConstructor.addMetaHeader(request, args.getXHeaders(), protoToken);
         RequestSigner.sign(request, getContext().getKey());
 
         return request.build();
     }
 
-    private Service.DeleteRequest createDeleteRequest(Types.ContainerID cid,
+    private Service.DeleteRequest createDeleteRequest(PrmContainerDelete args, CallContext ctx) {
-                                                      Map<String, String> xHeaders) {
+        var cid = ContainerIdMapper.toGrpcMessage(args.getContainerId());
+
         var body = Service.DeleteRequest.Body.newBuilder()
                 .setContainerId(cid)
                 .setSignature(RequestSigner.signRFC6979(getContext().getKey(), cid.getValue()))
@@ -212,9 +223,8 @@ public class ContainerClientImpl extends ContextAccessor implements ContainerCli
         var request = Service.DeleteRequest.newBuilder()
                 .setBody(body);
 
-        var sessionToken = getOrCreateSession(null);
+        var sessionToken = getOrCreateSession(args, ctx);
-
+        var protoToken = RequestConstructor.createContainerTokenContext(
-        sessionToken = RequestConstructor.createContainerTokenContext(
                 sessionToken,
                 null,
                 frostfs.session.Types.ContainerSessionContext.Verb.DELETE,
@@ -222,9 +232,18 @@ public class ContainerClientImpl extends ContextAccessor implements ContainerCli
                 getContext().getKey()
         );
 
-        RequestConstructor.addMetaHeader(request, xHeaders, sessionToken);
+        RequestConstructor.addMetaHeader(request, args.getXHeaders(), protoToken);
         RequestSigner.sign(request, getContext().getKey());
 
         return request.build();
     }
+
+    private void syncContainerWithNetwork(Container container, CallContext callContext) {
+        var settings = getContext().getFrostFSClient().getNetworkSettings(callContext);
+        if (nonNull(settings.getHomomorphicHashingDisabled()) && settings.getHomomorphicHashingDisabled()) {
+            container.getAttributes().put(DISABLE_HOMOMORPHIC_HASHING_ATTRIBUTE, Boolean.TRUE.toString());
+        } else {
+            container.getAttributes().remove(DISABLE_HOMOMORPHIC_HASHING_ATTRIBUTE, Boolean.TRUE.toString());
+        }
+    }
 }

client/src/main/java/info/frostfs/sdk/services/impl/NetmapClientImpl.java

@@ -7,6 +7,7 @@ import info.frostfs.sdk.dto.netmap.NetmapSnapshot;
 import info.frostfs.sdk.dto.netmap.NodeInfo;
 import info.frostfs.sdk.jdo.ClientEnvironment;
 import info.frostfs.sdk.jdo.NetworkSettings;
+import info.frostfs.sdk.jdo.parameters.CallContext;
 import info.frostfs.sdk.mappers.netmap.NetmapSnapshotMapper;
 import info.frostfs.sdk.mappers.netmap.NodeInfoMapper;
 import info.frostfs.sdk.services.ContextAccessor;
@@ -17,6 +18,7 @@ import info.frostfs.sdk.tools.Verifier;
 import java.nio.charset.StandardCharsets;
 
 import static info.frostfs.sdk.tools.RequestSigner.sign;
+import static info.frostfs.sdk.utils.DeadLineUtil.deadLineAfter;
 import static java.util.Objects.nonNull;
 
 public class NetmapClientImpl extends ContextAccessor implements NetmapClient {
@@ -94,12 +96,12 @@ public class NetmapClientImpl extends ContextAccessor implements NetmapClient {
     }
 
     @Override
-    public NetworkSettings getNetworkSettings() {
+    public NetworkSettings getNetworkSettings(CallContext ctx) {
         if (nonNull(getContext().getNetworkSettings())) {
             return getContext().getNetworkSettings();
         }
 
-        var info = getNetworkInfo();
+        var info = getNetworkInfo(ctx);
 
         var settings = new NetworkSettings();
 
@@ -113,25 +115,28 @@ public class NetmapClientImpl extends ContextAccessor implements NetmapClient {
     }
 
     @Override
-    public NodeInfo getLocalNodeInfo() {
+    public NodeInfo getLocalNodeInfo(CallContext ctx) {
         var request = Service.LocalNodeInfoRequest.newBuilder();
 
         RequestConstructor.addMetaHeader(request);
         sign(request, getContext().getKey());
 
-        var response = netmapServiceClient.localNodeInfo(request.build());
+        var service = deadLineAfter(netmapServiceClient, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.localNodeInfo(request.build());
+
         Verifier.checkResponse(response);
 
         return NodeInfoMapper.toModel(response.getBody());
     }
 
-    public Service.NetworkInfoResponse getNetworkInfo() {
+    public Service.NetworkInfoResponse getNetworkInfo(CallContext ctx) {
         var request = Service.NetworkInfoRequest.newBuilder();
 
         RequestConstructor.addMetaHeader(request);
         sign(request, getContext().getKey());
 
-        var response = netmapServiceClient.networkInfo(request.build());
+        var service = deadLineAfter(netmapServiceClient, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.networkInfo(request.build());
 
         Verifier.checkResponse(response);
 
@@ -139,13 +144,14 @@ public class NetmapClientImpl extends ContextAccessor implements NetmapClient {
     }
 
     @Override
-    public NetmapSnapshot getNetmapSnapshot() {
+    public NetmapSnapshot getNetmapSnapshot(CallContext ctx) {
         var request = Service.NetmapSnapshotRequest.newBuilder();
 
         RequestConstructor.addMetaHeader(request);
         sign(request, getContext().getKey());
 
-        var response = netmapServiceClient.netmapSnapshot(request.build());
+        var service = deadLineAfter(netmapServiceClient, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.netmapSnapshot(request.build());
 
         Verifier.checkResponse(response);
 

client/src/main/java/info/frostfs/sdk/services/impl/ObjectClientImpl.java

@@ -6,40 +6,42 @@ import frostfs.object.ObjectServiceGrpc;
 import frostfs.object.Service;
 import frostfs.refs.Types;
 import info.frostfs.sdk.constants.AppConst;
-import info.frostfs.sdk.dto.container.ContainerId;
 import info.frostfs.sdk.dto.object.*;
 import info.frostfs.sdk.dto.session.SessionToken;
 import info.frostfs.sdk.enums.ObjectType;
 import info.frostfs.sdk.exceptions.ProcessFrostFSException;
-import info.frostfs.sdk.exceptions.ValidationFrostFSException;
 import info.frostfs.sdk.jdo.ClientEnvironment;
-import info.frostfs.sdk.jdo.PutObjectParameters;
 import info.frostfs.sdk.jdo.PutObjectResult;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.jdo.parameters.object.*;
+import info.frostfs.sdk.jdo.parameters.object.patch.PrmObjectPatch;
+import info.frostfs.sdk.jdo.parameters.object.patch.PrmRangeGet;
+import info.frostfs.sdk.jdo.parameters.object.patch.PrmRangeHashGet;
+import info.frostfs.sdk.jdo.parameters.session.SessionContext;
+import info.frostfs.sdk.jdo.result.ObjectHeaderResult;
 import info.frostfs.sdk.mappers.container.ContainerIdMapper;
-import info.frostfs.sdk.mappers.object.ObjectFilterMapper;
+import info.frostfs.sdk.mappers.object.*;
-import info.frostfs.sdk.mappers.object.ObjectFrostFSMapper;
+import info.frostfs.sdk.mappers.object.patch.AddressMapper;
-import info.frostfs.sdk.mappers.object.ObjectHeaderMapper;
+import info.frostfs.sdk.mappers.object.patch.RangeMapper;
-import info.frostfs.sdk.mappers.object.ObjectIdMapper;
-import info.frostfs.sdk.mappers.session.SessionMapper;
 import info.frostfs.sdk.services.ContextAccessor;
 import info.frostfs.sdk.services.ObjectClient;
-import info.frostfs.sdk.services.impl.rwhelper.ObjectReaderImpl;
+import info.frostfs.sdk.services.impl.rwhelper.*;
-import info.frostfs.sdk.services.impl.rwhelper.ObjectWriter;
-import info.frostfs.sdk.services.impl.rwhelper.SearchReader;
 import info.frostfs.sdk.tools.RequestConstructor;
 import info.frostfs.sdk.tools.Verifier;
-import info.frostfs.sdk.utils.Validator;
 import org.apache.commons.collections4.CollectionUtils;
 
-import java.io.FileInputStream;
 import java.io.IOException;
+import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.List;
 
 import static info.frostfs.sdk.Helper.getSha256;
-import static info.frostfs.sdk.constants.ErrorConst.*;
+import static info.frostfs.sdk.constants.ErrorConst.PROTO_MESSAGE_IS_EMPTY_TEMPLATE;
 import static info.frostfs.sdk.tools.RequestSigner.sign;
+import static info.frostfs.sdk.utils.DeadLineUtil.deadLineAfter;
+import static info.frostfs.sdk.utils.Validator.validate;
 import static java.util.Objects.isNull;
+import static java.util.Objects.nonNull;
 
 public class ObjectClientImpl extends ContextAccessor implements ObjectClient {
     private final ObjectServiceGrpc.ObjectServiceBlockingStub objectServiceBlockingClient;
@@ -55,87 +57,224 @@ public class ObjectClientImpl extends ContextAccessor implements ObjectClient {
         this.sessionTools = new SessionToolsImpl(clientEnvironment);
     }
 
-    public frostfs.session.Types.SessionToken getOrCreateSession(SessionToken sessionToken) {
+    public SessionToken getOrCreateSession(SessionContext sessionContext, CallContext ctx) {
-        return sessionTools.getOrCreateSession(sessionToken, getContext());
+        return isNull(sessionContext.getSessionToken())
+                ? sessionTools.getOrCreateSession(getContext(), ctx)
+                : sessionContext.getSessionToken();
     }
 
     @Override
-    public ObjectHeader getObjectHead(ContainerId cid, ObjectId oid) {
+    public ObjectHeaderResult getObjectHead(PrmObjectHeadGet args, CallContext ctx) {
-        if (isNull(cid) || isNull(oid)) {
+        validate(args);
-            throw new ValidationFrostFSException(
-                    String.format(
-                            PARAMS_ARE_MISSING_TEMPLATE,
-                            String.join(FIELDS_DELIMITER_COMMA, ContainerId.class.getName(), ObjectId.class.getName())
-                    )
-            );
-        }
 
-        var request = createHeadRequest(ContainerIdMapper.toGrpcMessage(cid), ObjectIdMapper.toGrpcMessage(oid));
+        var request = createHeadRequest(args, ctx);
 
-        var response = objectServiceBlockingClient.head(request);
+        var service = deadLineAfter(objectServiceBlockingClient, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.head(request);
 
         Verifier.checkResponse(response);
 
-        return ObjectHeaderMapper.toModel(response.getBody().getHeader().getHeader());
+        return ObjectHeaderResult.builder()
+                .headerInfo(ObjectHeaderMapper.toModel(response.getBody().getHeader().getHeader()))
+                .splitInfo(SplitInfoMapper.toModel(response.getBody().getSplitInfo()))
+                .build();
     }
 
     @Override
-    public ObjectFrostFS getObject(ContainerId cid, ObjectId oid) {
+    public ObjectFrostFS getObject(PrmObjectGet args, CallContext ctx) {
-        var request = createGetRequest(ContainerIdMapper.toGrpcMessage(cid), ObjectIdMapper.toGrpcMessage(oid));
+        validate(args);
 
-        return getObject(request);
+        var request = createGetRequest(args, ctx);
+
+        return getObject(request, ctx);
     }
 
     @Override
-    public void deleteObject(ContainerId cid, ObjectId oid) {
+    public void deleteObject(PrmObjectDelete args, CallContext ctx) {
-        var request = createDeleteRequest(ContainerIdMapper.toGrpcMessage(cid), ObjectIdMapper.toGrpcMessage(oid));
+        validate(args);
 
-        var response = objectServiceBlockingClient.delete(request);
+        var request = createDeleteRequest(args, ctx);
+
+        var service = deadLineAfter(objectServiceBlockingClient, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.delete(request);
 
         Verifier.checkResponse(response);
     }
 
     @Override
-    public Iterable<ObjectId> searchObjects(ContainerId cid, ObjectFilter<?>... filters) {
+    public Iterable<ObjectId> searchObjects(PrmObjectSearch args, CallContext ctx) {
-        var request = createSearchRequest(ContainerIdMapper.toGrpcMessage(cid), filters);
+        validate(args);
 
-        var objectsIds = searchObjects(request);
+        var request = createSearchRequest(args, ctx);
+
+        var objectsIds = searchObjects(request, ctx);
 
         return Iterables.transform(objectsIds, input -> new ObjectId(input.getValue().toByteArray()));
     }
 
     @Override
-    public ObjectId putObject(PutObjectParameters parameters) {
+    public ObjectWriter putObject(PrmObjectPut args, CallContext ctx) {
-        Validator.validate(parameters);
+        validate(args);
 
-        if (parameters.isClientCut()) {
+        return new ObjectWriter(getContext(), args, getUploadStream(args, ctx));
-            return putClientCutObject(parameters);
-        }
-
-        if (parameters.getHeader().getPayloadLength() > 0) {
-            parameters.setFullLength(parameters.getHeader().getPayloadLength());
-        } else {
-            parameters.setFullLength(getStreamSize(parameters.getPayload()));
-        }
-
-        return putStreamObject(parameters).getObjectId();
     }
 
     @Override
-    public ObjectId putSingleObject(ObjectFrostFS modelObject) {
+    public ObjectId putClientCutObject(PrmObjectClientCutPut args, CallContext ctx) {
-        var grpcObject = objectToolsImpl.createObject(modelObject);
+        validate(args);
 
-        var request = createPutSingleRequest(grpcObject);
+        var header = args.getObjectHeader();
+        var fullLength = header.getPayloadLength() == 0 ? getStreamSize(args.getPayload()) : header.getPayloadLength();
+        args.getPutObjectContext().setFullLength(fullLength);
 
-        var response = objectServiceBlockingClient.putSingle(request);
+        if (args.getPutObjectContext().getMaxObjectSizeCache() == 0) {
+            var networkSettings = getContext().getFrostFSClient().getNetworkSettings(ctx);
+            args.getPutObjectContext().setMaxObjectSizeCache(networkSettings.getMaxObjectSize().intValue());
+        }
+
+        var restBytes = fullLength - args.getPutObjectContext().getCurrentStreamPosition();
+        var objectSize = restBytes > 0
+                ? Math.min(args.getPutObjectContext().getMaxObjectSizeCache(), restBytes)
+                : args.getPutObjectContext().getMaxObjectSizeCache();
+
+        //define collection capacity
+        var restPart = (restBytes % objectSize) > 0 ? 1 : 0;
+        var objectsCount = fullLength > 0 ? (int) (restBytes / objectSize) + restPart : 0;
+
+        List<ObjectId> sentObjectIds = new ArrayList<>(objectsCount);
+
+        // keep attributes for the large object
+        var attributes = args.getObjectHeader().getAttributes();
+
+        Split split = new Split();
+        args.getObjectHeader().setAttributes(new ArrayList<>());
+
+        // send all parts except the last one as separate Objects
+        while (restBytes > (long) args.getPutObjectContext().getMaxObjectSizeCache()) {
+            var previous = CollectionUtils.isNotEmpty(sentObjectIds)
+                    ? sentObjectIds.get(sentObjectIds.size() - 1)
+                    : null;
+            split.setPrevious(previous);
+            args.getObjectHeader().setSplit(split);
+
+            var result = putMultipartStreamObject(args, ctx);
+
+            sentObjectIds.add(result.getObjectId());
+
+            restBytes -= result.getObjectSize();
+        }
+
+        // send the last part and create linkObject
+        if (CollectionUtils.isNotEmpty(sentObjectIds)) {
+            var largeObjectHeader =
+                    new ObjectHeader(header.getContainerId(), ObjectType.REGULAR, attributes, fullLength, null);
+
+            split.setParentHeader(largeObjectHeader);
+
+            var result = putMultipartStreamObject(args, ctx);
+
+            sentObjectIds.add(result.getObjectId());
+
+            var linkObject = new LinkObject(header.getContainerId(), split.getSplitId(), largeObjectHeader);
+            linkObject.addChildren(sentObjectIds);
+
+            putSingleObject(new PrmObjectSinglePut(linkObject), ctx);
+
+            return split.getParent();
+        }
+
+        // We are here if the payload is placed to one Object. It means no cut action, just simple PUT.
+        var singlePartResult = putMultipartStreamObject(args, ctx);
+
+        return singlePartResult.getObjectId();
+    }
+
+    @Override
+    public ObjectId putSingleObject(PrmObjectSinglePut args, CallContext ctx) {
+        var grpcObject = objectToolsImpl.createObject(args.getObjectFrostFS());
+        var request = createPutSingleRequest(grpcObject, args, ctx);
+
+        var service = deadLineAfter(objectServiceBlockingClient, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.putSingle(request);
 
         Verifier.checkResponse(response);
 
         return new ObjectId(grpcObject.getObjectId().getValue().toByteArray());
     }
 
-    private ObjectFrostFS getObject(Service.GetRequest request) {
+    @Override
-        var reader = getObjectInit(request);
+    public RangeReader getRange(PrmRangeGet args, CallContext ctx) {
+        validate(args);
+
+        var request = createGetRangeRequest(args, ctx);
+
+        var service = deadLineAfter(objectServiceBlockingClient, ctx.getTimeout(), ctx.getTimeUnit());
+        return new RangeReader(service.getRange(request));
+    }
+
+    @Override
+    public byte[][] getRangeHash(PrmRangeHashGet args, CallContext ctx) {
+        validate(args);
+
+        var request = createGetRangeHashRequest(args, ctx);
+
+        var service = deadLineAfter(objectServiceBlockingClient, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.getRangeHash(request);
+
+        Verifier.checkResponse(response);
+
+        return response.getBody().getHashListList().stream().map(ByteString::toByteArray).toArray(byte[][]::new);
+    }
+
+    @Override
+    public ObjectId patchObject(PrmObjectPatch args, CallContext ctx) {
+        validate(args);
+
+        var request = createInitPatchRequest(args);
+        var protoToken = RequestConstructor.createObjectTokenContext(
+                getOrCreateSession(args, ctx),
+                request.getBody().getAddress(),
+                frostfs.session.Types.ObjectSessionContext.Verb.PATCH,
+                getContext().getKey()
+        );
+
+        var currentPos = args.getRange().getOffset();
+        var chunkSize = args.getMaxChunkLength();
+        byte[] chunkBuffer = new byte[chunkSize];
+
+        var service = deadLineAfter(objectServiceClient, ctx.getTimeout(), ctx.getTimeUnit());
+        PatchStreamer writer = new PatchStreamer(service);
+
+        var bytesCount = readNBytes(args.getPayload(), chunkBuffer, chunkSize);
+        while (bytesCount > 0) {
+            var range = Service.Range.newBuilder()
+                    .setOffset(currentPos)
+                    .setLength(bytesCount)
+                    .build();
+
+            Service.PatchRequest.Body.Patch.newBuilder()
+                    .setChunk(ByteString.copyFrom(chunkBuffer, 0, bytesCount))
+                    .setSourceRange(range)
+                    .build();
+
+            currentPos += bytesCount;
+
+            RequestConstructor.addMetaHeader(request, args.getXHeaders(), protoToken);
+            sign(request, getContext().getKey());
+
+            writer.write(request.build());
+            bytesCount = readNBytes(args.getPayload(), chunkBuffer, chunkSize);
+        }
+
+        var response = writer.complete();
+
+        Verifier.checkResponse(response);
+
+        return ObjectIdMapper.toModel(response.getBody().getObjectId());
+    }
+
+    private ObjectFrostFS getObject(Service.GetRequest request, CallContext ctx) {
+        var reader = getObjectInit(request, ctx);
 
         var grpcObject = reader.readHeader();
         var modelObject = ObjectFrostFSMapper.toModel(grpcObject);
@@ -145,39 +284,41 @@ public class ObjectClientImpl extends ContextAccessor implements ObjectClient {
         return modelObject;
     }
 
-    private ObjectReaderImpl getObjectInit(Service.GetRequest initRequest) {
+    private ObjectReaderImpl getObjectInit(Service.GetRequest initRequest, CallContext ctx) {
         if (initRequest.getSerializedSize() == 0) {
             throw new ProcessFrostFSException(
                     String.format(PROTO_MESSAGE_IS_EMPTY_TEMPLATE, initRequest.getClass().getName())
             );
         }
 
-        return new ObjectReaderImpl(objectServiceBlockingClient.get(initRequest));
+        var service = deadLineAfter(objectServiceBlockingClient, ctx.getTimeout(), ctx.getTimeUnit());
+        return new ObjectReaderImpl(service.get(initRequest));
     }
 
-    private PutObjectResult putStreamObject(PutObjectParameters parameters) {
+    private PutObjectResult putMultipartStreamObject(PrmObjectClientCutPut args, CallContext ctx) {
-        var chunkSize = parameters.getBufferMaxSize() > 0 ? parameters.getBufferMaxSize() : AppConst.OBJECT_CHUNK_SIZE;
+        var chunkSize = args.getBufferMaxSize() > 0 ? args.getBufferMaxSize() : AppConst.OBJECT_CHUNK_SIZE;
 
-        var restBytes = parameters.getFullLength() - parameters.getCurrentStreamPosition();
+        var restBytes =
+                args.getPutObjectContext().getFullLength() - args.getPutObjectContext().getCurrentStreamPosition();
 
         chunkSize = (int) Math.min(restBytes, chunkSize);
 
-        byte[] chunkBuffer = parameters.getCustomerBuffer() != null
+        byte[] chunkBuffer = args.getCustomerBuffer() != null
-                ? parameters.getCustomerBuffer()
+                ? args.getCustomerBuffer()
                 : new byte[chunkSize];//todo change to pool
 
         var sentBytes = 0;
 
         // 0 means no limit from client, so server side cut is performed
-        var objectLimitSize = parameters.isClientCut() ? parameters.getMaxObjectSizeCache() : 0;
+        var objectLimitSize = args.getPutObjectContext().getMaxObjectSizeCache();
 
-        var stream = getUploadStream(parameters);
+        var stream = getUploadStream(args, ctx);
 
         while (objectLimitSize == 0 || sentBytes < objectLimitSize) {
             // send chunks limited to default or user's settings
             var bufferSize = objectLimitSize > 0 ? Math.min(objectLimitSize - sentBytes, chunkSize) : chunkSize;
 
-            var bytesCount = readNBytes(parameters.getPayload(), chunkBuffer, bufferSize);
+            var bytesCount = readNBytes(args.getPayload(), chunkBuffer, bufferSize);
 
             if (bytesCount == 0) {
                 break;
@@ -204,110 +345,40 @@ public class ObjectClientImpl extends ContextAccessor implements ObjectClient {
         return new PutObjectResult(objectId, sentBytes);
     }
 
-    private ObjectId putClientCutObject(PutObjectParameters parameters) {
+    private ObjectStreamer getUploadStream(PrmObjectPutBase args, CallContext ctx) {
-        var header = parameters.getHeader();
+        var header = args.getObjectHeader();
-        var tokenRaw = getOrCreateSession(parameters.getSessionToken());
-        var token = new SessionToken(SessionMapper.serialize(tokenRaw));
-        parameters.setSessionToken(token);
-
-        var fullLength = header.getPayloadLength() == 0
-                ? getStreamSize(parameters.getPayload())
-                : header.getPayloadLength();
-
-        parameters.setFullLength(fullLength);
-
-        if (parameters.getMaxObjectSizeCache() == 0) {
-            var networkSettings = getContext().getFrostFSClient().getNetworkSettings();
-            parameters.setMaxObjectSizeCache(networkSettings.getMaxObjectSize().intValue());
-        }
-
-        var restBytes = fullLength - parameters.getCurrentStreamPosition();
-        var objectSize = restBytes > 0
-                ? Math.min(parameters.getMaxObjectSizeCache(), restBytes)
-                : parameters.getMaxObjectSizeCache();
-
-        //define collection capacity
-        var restPart = (restBytes % objectSize) > 0 ? 1 : 0;
-        var objectsCount = fullLength > 0 ? (int) (restBytes / objectSize) + restPart : 0;
-
-        List<ObjectId> sentObjectIds = new ArrayList<>(objectsCount);
-
-        // keep attributes for the large object
-        var attributes = parameters.getHeader().getAttributes();
-
-        Split split = new Split();
-        parameters.getHeader().setSplit(split);
-        parameters.getHeader().setAttributes(new ArrayList<>());
-
-        // send all parts except the last one as separate Objects
-        while (restBytes > (long) parameters.getMaxObjectSizeCache()) {
-            var previous = CollectionUtils.isNotEmpty(sentObjectIds)
-                    ? sentObjectIds.get(sentObjectIds.size() - 1)
-                    : null;
-            split.setPrevious(previous);
-
-            var result = putStreamObject(parameters);
-
-            sentObjectIds.add(result.getObjectId());
-
-            restBytes -= result.getObjectSize();
-        }
-
-        // send the last part and create linkObject
-        if (CollectionUtils.isNotEmpty(sentObjectIds)) {
-            var largeObjectHeader =
-                    new ObjectHeader(header.getContainerId(), ObjectType.REGULAR, attributes, fullLength, null);
-
-            split.setParentHeader(largeObjectHeader);
-
-            var result = putStreamObject(parameters);
-
-            sentObjectIds.add(result.getObjectId());
-
-            var linkObject = new LinkObject(header.getContainerId(), split.getSplitId(), largeObjectHeader);
-            linkObject.addChildren(sentObjectIds);
-
-            putSingleObject(linkObject);
-
-            return split.getParent();
-        }
-
-        // We are here if the payload is placed to one Object. It means no cut action, just simple PUT.
-        var singlePartResult = putStreamObject(parameters);
-
-        return singlePartResult.getObjectId();
-    }
-
-    private ObjectWriter getUploadStream(PutObjectParameters parameters) {
-        var header = parameters.getHeader();
 
         header.setOwnerId(getContext().getOwnerId());
         header.setVersion(getContext().getVersion());
 
         var grpcHeader = ObjectHeaderMapper.toGrpcMessage(header);
+
+        if (nonNull(header.getSplit())) {
             grpcHeader = objectToolsImpl.updateSplitValues(grpcHeader, header.getSplit());
+        }
 
         var oid = Types.ObjectID.newBuilder().setValue(getSha256(grpcHeader)).build();
 
-        var initRequest = createInitPutRequest(oid, grpcHeader);
+        var initRequest = createInitPutRequest(oid, grpcHeader, args, ctx);
 
-        return putObjectInit(initRequest);
+        return putObjectInit(initRequest, ctx);
     }
 
-    private ObjectWriter putObjectInit(Service.PutRequest initRequest) {
+    private ObjectStreamer putObjectInit(Service.PutRequest initRequest, CallContext ctx) {
         if (initRequest.getSerializedSize() == 0) {
             throw new ProcessFrostFSException(
                     String.format(PROTO_MESSAGE_IS_EMPTY_TEMPLATE, initRequest.getClass().getName())
             );
         }
 
-        ObjectWriter writer = new ObjectWriter(objectServiceClient);
+        var service = deadLineAfter(objectServiceClient, ctx.getTimeout(), ctx.getTimeUnit());
+        ObjectStreamer writer = new ObjectStreamer(service);
         writer.write(initRequest);
         return writer;
     }
 
-    private Iterable<Types.ObjectID> searchObjects(Service.SearchRequest request) {
+    private Iterable<Types.ObjectID> searchObjects(Service.SearchRequest request, CallContext ctx) {
-        var reader = getSearchReader(request);
+        var reader = getSearchReader(request, ctx);
         var ids = reader.read();
         List<Types.ObjectID> result = new ArrayList<>();
 
@@ -319,62 +390,63 @@ public class ObjectClientImpl extends ContextAccessor implements ObjectClient {
         return result;//todo return yield
     }
 
-    private SearchReader getSearchReader(Service.SearchRequest initRequest) {
+    private SearchReader getSearchReader(Service.SearchRequest initRequest, CallContext ctx) {
         if (initRequest.getSerializedSize() == 0) {
             throw new ProcessFrostFSException(
                     String.format(PROTO_MESSAGE_IS_EMPTY_TEMPLATE, initRequest.getClass().getName())
             );
         }
 
-        return new SearchReader(objectServiceBlockingClient.search(initRequest));
+        var service = deadLineAfter(objectServiceBlockingClient, ctx.getTimeout(), ctx.getTimeUnit());
+        return new SearchReader(service.search(initRequest));
     }
 
-    private int readNBytes(FileInputStream fileInputStream, byte[] buffer, int size) {
+    private int readNBytes(InputStream inputStream, byte[] buffer, int size) {
         try {
-            return fileInputStream.readNBytes(buffer, 0, size);
+            return inputStream.readNBytes(buffer, 0, size);
         } catch (IOException exp) {
             throw new ProcessFrostFSException(exp.getMessage());
         }
     }
 
-    private long getStreamSize(FileInputStream fileInputStream) {
+    private long getStreamSize(InputStream inputStream) {
         try {
-            return fileInputStream.getChannel().size();
+            return inputStream.available();
         } catch (IOException exp) {
             throw new ProcessFrostFSException(exp.getMessage());
         }
     }
 
-    private Service.HeadRequest createHeadRequest(Types.ContainerID cid, Types.ObjectID oid) {
+    private Service.HeadRequest createHeadRequest(PrmObjectHeadGet args, CallContext ctx) {
         var address = Types.Address.newBuilder()
-                .setContainerId(cid)
+                .setContainerId(ContainerIdMapper.toGrpcMessage(args.getContainerId()))
-                .setObjectId(oid)
+                .setObjectId(ObjectIdMapper.toGrpcMessage(args.getObjectId()))
                 .build();
         var body = Service.HeadRequest.Body.newBuilder()
                 .setAddress(address)
+                .setRaw(args.isRaw())
                 .build();
         var request = Service.HeadRequest.newBuilder()
                 .setBody(body);
 
-        var sessionToken = getOrCreateSession(null);
+        var sessionToken = getOrCreateSession(args, ctx);
-
+        var protoToken = RequestConstructor.createObjectTokenContext(
-        sessionToken = RequestConstructor.createObjectTokenContext(
                 sessionToken,
                 address,
                 frostfs.session.Types.ObjectSessionContext.Verb.HEAD,
                 getContext().getKey()
         );
 
-        RequestConstructor.addMetaHeader(request, null, sessionToken);
+        RequestConstructor.addMetaHeader(request, args.getXHeaders(), protoToken);
         sign(request, getContext().getKey());
 
         return request.build();
     }
 
-    private Service.GetRequest createGetRequest(Types.ContainerID cid, Types.ObjectID oid) {
+    private Service.GetRequest createGetRequest(PrmObjectGet args, CallContext ctx) {
         var address = Types.Address.newBuilder()
-                .setContainerId(cid)
+                .setContainerId(ContainerIdMapper.toGrpcMessage(args.getContainerId()))
-                .setObjectId(oid)
+                .setObjectId(ObjectIdMapper.toGrpcMessage(args.getObjectId()))
                 .build();
         var body = Service.GetRequest.Body.newBuilder()
                 .setAddress(address)
@@ -382,25 +454,24 @@ public class ObjectClientImpl extends ContextAccessor implements ObjectClient {
         var request = Service.GetRequest.newBuilder()
                 .setBody(body);
 
-        var sessionToken = getOrCreateSession(null);
+        var sessionToken = getOrCreateSession(args, ctx);
-
+        var protoToken = RequestConstructor.createObjectTokenContext(
-        sessionToken = RequestConstructor.createObjectTokenContext(
                 sessionToken,
                 address,
                 frostfs.session.Types.ObjectSessionContext.Verb.GET,
                 getContext().getKey()
         );
 
-        RequestConstructor.addMetaHeader(request, null, sessionToken);
+        RequestConstructor.addMetaHeader(request, args.getXHeaders(), protoToken);
         sign(request, getContext().getKey());
 
         return request.build();
     }
 
-    private Service.DeleteRequest createDeleteRequest(Types.ContainerID cid, Types.ObjectID oid) {
+    private Service.DeleteRequest createDeleteRequest(PrmObjectDelete args, CallContext ctx) {
         var address = Types.Address.newBuilder()
-                .setContainerId(cid)
+                .setContainerId(ContainerIdMapper.toGrpcMessage(args.getContainerId()))
-                .setObjectId(oid)
+                .setObjectId(ObjectIdMapper.toGrpcMessage(args.getObjectId()))
                 .build();
         var body = Service.DeleteRequest.Body.newBuilder()
                 .setAddress(address)
@@ -408,22 +479,23 @@ public class ObjectClientImpl extends ContextAccessor implements ObjectClient {
         var request = Service.DeleteRequest.newBuilder()
                 .setBody(body);
 
-        var sessionToken = getOrCreateSession(null);
+        var sessionToken = getOrCreateSession(args, ctx);
-
+        var protoToken = RequestConstructor.createObjectTokenContext(
-        sessionToken = RequestConstructor.createObjectTokenContext(
                 sessionToken,
                 address,
                 frostfs.session.Types.ObjectSessionContext.Verb.DELETE,
                 getContext().getKey()
         );
 
-        RequestConstructor.addMetaHeader(request, null, sessionToken);
+        RequestConstructor.addMetaHeader(request, args.getXHeaders(), protoToken);
         sign(request, getContext().getKey());
 
         return request.build();
     }
 
-    private Service.SearchRequest createSearchRequest(Types.ContainerID cid, ObjectFilter<?>... filters) {
+    private Service.SearchRequest createSearchRequest(PrmObjectSearch args, CallContext ctx) {
+        var cid = ContainerIdMapper.toGrpcMessage(args.getContainerId());
+
         var address = Types.Address.newBuilder()
                 .setContainerId(cid)
                 .build();
@@ -432,29 +504,31 @@ public class ObjectClientImpl extends ContextAccessor implements ObjectClient {
                 .setContainerId(cid)
                 .setVersion(1);// TODO: clarify this param
 
-        for (ObjectFilter<?> filter : filters) {
+        for (ObjectFilter<?> filter : args.getFilters()) {
             body.addFilters(ObjectFilterMapper.toGrpcMessage(filter));
         }
 
         var request = Service.SearchRequest.newBuilder()
                 .setBody(body.build());
 
-        var sessionToken = getOrCreateSession(null);
+        var sessionToken = getOrCreateSession(args, ctx);
-
+        var protoToken = RequestConstructor.createObjectTokenContext(
-        sessionToken = RequestConstructor.createObjectTokenContext(
                 sessionToken,
                 address,
                 frostfs.session.Types.ObjectSessionContext.Verb.SEARCH,
                 getContext().getKey()
         );
 
-        RequestConstructor.addMetaHeader(request, null, sessionToken);
+        RequestConstructor.addMetaHeader(request, args.getXHeaders(), protoToken);
         sign(request, getContext().getKey());
 
         return request.build();
     }
 
-    private Service.PutRequest createInitPutRequest(Types.ObjectID oid, frostfs.object.Types.Header header) {
+    private Service.PutRequest createInitPutRequest(Types.ObjectID oid,
+                                                    frostfs.object.Types.Header header,
+                                                    PrmObjectPutBase args,
+                                                    CallContext ctx) {
         var address = Types.Address.newBuilder()
                 .setContainerId(header.getContainerId())
                 .setObjectId(oid)
@@ -468,22 +542,23 @@ public class ObjectClientImpl extends ContextAccessor implements ObjectClient {
         var request = Service.PutRequest.newBuilder()
                 .setBody(body);
 
-        var sessionToken = getOrCreateSession(null);
+        var sessionToken = getOrCreateSession(args, ctx);
-
+        var protoToken = RequestConstructor.createObjectTokenContext(
-        sessionToken = RequestConstructor.createObjectTokenContext(
                 sessionToken,
                 address,
                 frostfs.session.Types.ObjectSessionContext.Verb.PUT,
                 getContext().getKey()
         );
 
-        RequestConstructor.addMetaHeader(request, null, sessionToken);
+        RequestConstructor.addMetaHeader(request, args.getXHeaders(), protoToken);
         sign(request, getContext().getKey());
 
         return request.build();
     }
 
-    private Service.PutSingleRequest createPutSingleRequest(frostfs.object.Types.Object grpcObject) {
+    private Service.PutSingleRequest createPutSingleRequest(frostfs.object.Types.Object grpcObject,
+                                                            PrmObjectSinglePut args,
+                                                            CallContext ctx) {
         var address = Types.Address.newBuilder()
                 .setContainerId(grpcObject.getHeader().getContainerId())
                 .setObjectId(grpcObject.getObjectId())
@@ -494,18 +569,83 @@ public class ObjectClientImpl extends ContextAccessor implements ObjectClient {
         var request = Service.PutSingleRequest.newBuilder()
                 .setBody(body);
 
-        var sessionToken = getOrCreateSession(null);
+        var sessionToken = getOrCreateSession(args, ctx);
-
+        var protoToken = RequestConstructor.createObjectTokenContext(
-        sessionToken = RequestConstructor.createObjectTokenContext(
                 sessionToken,
                 address,
                 frostfs.session.Types.ObjectSessionContext.Verb.PUT,
                 getContext().getKey()
         );
 
-        RequestConstructor.addMetaHeader(request, null, sessionToken);
+        RequestConstructor.addMetaHeader(request, args.getXHeaders(), protoToken);
         sign(request, getContext().getKey());
 
         return request.build();
     }
+
+    private Service.GetRangeRequest createGetRangeRequest(PrmRangeGet args, CallContext ctx) {
+        var address = Types.Address.newBuilder()
+                .setContainerId(ContainerIdMapper.toGrpcMessage(args.getContainerId()))
+                .setObjectId(ObjectIdMapper.toGrpcMessage(args.getObjectId()))
+                .build();
+        var body = Service.GetRangeRequest.Body.newBuilder()
+                .setAddress(address)
+                .setRange(RangeMapper.toGrpcMessage(args.getRange()))
+                .setRaw(args.isRaw())
+                .build();
+        var request = Service.GetRangeRequest.newBuilder()
+                .setBody(body);
+
+        var sessionToken = getOrCreateSession(args, ctx);
+        var protoToken = RequestConstructor.createObjectTokenContext(
+                sessionToken,
+                address,
+                frostfs.session.Types.ObjectSessionContext.Verb.RANGE,
+                getContext().getKey()
+        );
+
+        RequestConstructor.addMetaHeader(request, args.getXHeaders(), protoToken);
+        sign(request, getContext().getKey());
+
+        return request.build();
+    }
+
+    private Service.GetRangeHashRequest createGetRangeHashRequest(PrmRangeHashGet args, CallContext ctx) {
+        var address = Types.Address.newBuilder()
+                .setContainerId(ContainerIdMapper.toGrpcMessage(args.getContainerId()))
+                .setObjectId(ObjectIdMapper.toGrpcMessage(args.getObjectId()))
+                .build();
+        var body = Service.GetRangeHashRequest.Body.newBuilder()
+                .setAddress(address)
+                .setType(Types.ChecksumType.SHA256)
+                .setSalt(ByteString.copyFrom(args.getSalt()))
+                .addAllRanges(RangeMapper.toGrpcMessages(args.getRanges()))
+                .build();
+        var request = Service.GetRangeHashRequest.newBuilder()
+                .setBody(body);
+
+        var sessionToken = getOrCreateSession(args, ctx);
+        var protoToken = RequestConstructor.createObjectTokenContext(
+                sessionToken,
+                address,
+                frostfs.session.Types.ObjectSessionContext.Verb.RANGEHASH,
+                getContext().getKey()
+        );
+
+        RequestConstructor.addMetaHeader(request, args.getXHeaders(), protoToken);
+        sign(request, getContext().getKey());
+
+        return request.build();
+    }
+
+    private Service.PatchRequest.Builder createInitPatchRequest(PrmObjectPatch args) {
+        var address = AddressMapper.toGrpcMessage(args.getAddress());
+        var body = Service.PatchRequest.Body.newBuilder()
+                .setAddress(address)
+                .setReplaceAttributes(args.isReplaceAttributes())
+                .addAllNewAttributes(ObjectAttributeMapper.toGrpcMessages(args.getNewAttributes()))
+                .build();
+        return Service.PatchRequest.newBuilder()
+                .setBody(body);
+    }
 }

client/src/main/java/info/frostfs/sdk/services/impl/ObjectToolsImpl.java

@@ -47,16 +47,16 @@ public class ObjectToolsImpl extends ContextAccessor implements ToolsClient {
         );
     }
 
-    public Types.Object createObject(ObjectFrostFS objectFrostFs) {
+    public Types.Object createObject(ObjectFrostFS objectFrostFS) {
-        objectFrostFs.getHeader().setOwnerId(getContext().getOwnerId());
+        objectFrostFS.getHeader().setOwnerId(getContext().getOwnerId());
-        objectFrostFs.getHeader().setVersion(getContext().getVersion());
+        objectFrostFS.getHeader().setVersion(getContext().getVersion());
-        objectFrostFs.getHeader().setPayloadLength(objectFrostFs.getPayload().length);
+        objectFrostFS.getHeader().setPayloadLength(objectFrostFS.getPayload().length);
 
-        var grpcHeader = ObjectHeaderMapper.toGrpcMessage(objectFrostFs.getHeader()).toBuilder()
+        var grpcHeader = ObjectHeaderMapper.toGrpcMessage(objectFrostFS.getHeader()).toBuilder()
-                .setPayloadHash(sha256Checksum(objectFrostFs.getPayload()))
+                .setPayloadHash(sha256Checksum(objectFrostFS.getPayload()))
                 .build();
 
-        var split = objectFrostFs.getHeader().getSplit();
+        var split = objectFrostFS.getHeader().getSplit();
         if (nonNull(split)) {
             grpcHeader = updateSplitValues(grpcHeader, split);
         }
@@ -68,7 +68,7 @@ public class ObjectToolsImpl extends ContextAccessor implements ToolsClient {
         return Types.Object.newBuilder()
                 .setHeader(grpcHeader)
                 .setObjectId(objectId)
-                .setPayload(ByteString.copyFrom(objectFrostFs.getPayload()))
+                .setPayload(ByteString.copyFrom(objectFrostFS.getPayload()))
                 .setSignature(sig)
                 .build();
     }

client/src/main/java/info/frostfs/sdk/services/impl/SessionClientImpl.java

@@ -5,6 +5,8 @@ import frostfs.session.SessionServiceGrpc;
 import frostfs.session.Types;
 import info.frostfs.sdk.dto.session.SessionToken;
 import info.frostfs.sdk.jdo.ClientEnvironment;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.jdo.parameters.session.PrmSessionCreate;
 import info.frostfs.sdk.mappers.object.OwnerIdMapper;
 import info.frostfs.sdk.mappers.session.SessionMapper;
 import info.frostfs.sdk.services.ContextAccessor;
@@ -13,6 +15,7 @@ import info.frostfs.sdk.tools.RequestConstructor;
 import info.frostfs.sdk.tools.Verifier;
 
 import static info.frostfs.sdk.tools.RequestSigner.sign;
+import static info.frostfs.sdk.utils.DeadLineUtil.deadLineAfter;
 
 public class SessionClientImpl extends ContextAccessor implements SessionClient {
     private final SessionServiceGrpc.SessionServiceBlockingStub serviceBlockingStub;
@@ -23,16 +26,16 @@ public class SessionClientImpl extends ContextAccessor implements SessionClient
     }
 
     @Override
-    public SessionToken createSession(long expiration) {
+    public SessionToken createSession(PrmSessionCreate args, CallContext ctx) {
-        var sessionToken = createSessionInternal(expiration);
+        var sessionToken = createSessionInternal(args, ctx);
         var token = SessionMapper.serialize(sessionToken);
         return new SessionToken(token);
     }
 
-    public Types.SessionToken createSessionInternal(long expiration) {
+    public Types.SessionToken createSessionInternal(PrmSessionCreate args, CallContext ctx) {
         var body = Service.CreateRequest.Body.newBuilder()
                 .setOwnerId(OwnerIdMapper.toGrpcMessage(getContext().getOwnerId()))
-                .setExpiration(expiration)
+                .setExpiration(args.getExpiration())
                 .build();
         var request = Service.CreateRequest.newBuilder()
                 .setBody(body);
@@ -40,11 +43,12 @@ public class SessionClientImpl extends ContextAccessor implements SessionClient
         RequestConstructor.addMetaHeader(request);
         sign(request, getContext().getKey());
 
-        return createSession(request.build());
+        return createSession(request.build(), ctx);
     }
 
-    private Types.SessionToken createSession(Service.CreateRequest request) {
+    private Types.SessionToken createSession(Service.CreateRequest request, CallContext ctx) {
-        var response = serviceBlockingStub.create(request);
+        var service = deadLineAfter(serviceBlockingStub, ctx.getTimeout(), ctx.getTimeUnit());
+        var response = service.create(request);
 
         Verifier.checkResponse(response);
 

client/src/main/java/info/frostfs/sdk/services/impl/SessionToolsImpl.java

@@ -1,12 +1,14 @@
 package info.frostfs.sdk.services.impl;
 
-import frostfs.session.Types;
 import info.frostfs.sdk.dto.session.SessionToken;
+import info.frostfs.sdk.exceptions.FrostFSException;
 import info.frostfs.sdk.jdo.ClientEnvironment;
-import info.frostfs.sdk.mappers.session.SessionMapper;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.jdo.parameters.session.PrmSessionCreate;
 import info.frostfs.sdk.services.ContextAccessor;
 import info.frostfs.sdk.services.SessionTools;
 
+import static info.frostfs.sdk.constants.ErrorConst.SESSION_CREATE_FAILED;
 import static java.util.Objects.isNull;
 
 public class SessionToolsImpl extends ContextAccessor implements SessionTools {
@@ -16,12 +18,18 @@ public class SessionToolsImpl extends ContextAccessor implements SessionTools {
     }
 
     @Override
-    public Types.SessionToken getOrCreateSession(SessionToken sessionToken, ClientEnvironment env) {
+    public SessionToken getOrCreateSession(ClientEnvironment env, CallContext ctx) {
-        if (isNull(sessionToken)) {
+        var token = env.getSessionCache().tryGetValue(env.getSessionKey());
-            return env.getFrostFSClient().createSessionInternal(-1);
+
+        if (isNull(token)) {
+            token = env.getFrostFSClient().createSession(new PrmSessionCreate(-1), ctx);
+            if (isNull(token)) {
+                throw new FrostFSException(SESSION_CREATE_FAILED);
             }
 
-        return SessionMapper.deserializeSessionToken(sessionToken.getToken());
+            env.getSessionCache().setValue(env.getSessionKey(), token);
         }
 
+        return token;
+    }
 }

client/src/main/java/info/frostfs/sdk/services/impl/interceptor/ClientMetrics.java

@@ -15,10 +15,10 @@ import static info.frostfs.sdk.services.impl.interceptor.Labels.*;
 
 public class ClientMetrics {
     private static final List<String> defaultRequestLabels =
-            Arrays.asList("grpc_type", "grpc_service", "grpc_method");
+            Arrays.asList("grpc_target", "grpc_type", "grpc_service", "grpc_method");
 
     private static final List<String> defaultResponseLabels =
-            Arrays.asList("grpc_type", "grpc_service", "grpc_method", "code", "grpc_code");
+            Arrays.asList("grpc_target", "grpc_type", "grpc_service", "grpc_method", "code", "grpc_code");
 
     private static final Counter.Builder rpcStartedBuilder =
             Counter.build()
@@ -113,7 +113,9 @@ public class ClientMetrics {
                 .observe(latencySec);
     }
 
-    /** Knows how to produce {@link ClientMetrics} instances for individual methods. */
+    /**
+     * Knows how to produce {@link ClientMetrics} instances for individual methods.
+     */
     static class Factory {
         private final List<Metadata.Key<String>> labelHeaderKeys;
         private final Counter rpcStarted;
@@ -155,7 +157,9 @@ public class ClientMetrics {
             }
         }
 
-        /** Creates a {@link ClientMetrics} for the supplied gRPC method. */
+        /**
+         * Creates a {@link ClientMetrics} for the supplied gRPC method.
+         */
         ClientMetrics createMetricsForMethod(GrpcMethod grpcMethod) {
             return new ClientMetrics(
                     labelHeaderKeys,

client/src/main/java/info/frostfs/sdk/services/impl/interceptor/Configuration.java

@@ -2,9 +2,11 @@ package info.frostfs.sdk.services.impl.interceptor;
 
 
 import io.prometheus.client.CollectorRegistry;
+
 import java.util.ArrayList;
 import java.util.List;
 import java.util.stream.Collectors;
+
 public class Configuration {
     private static final double[] DEFAULT_LATENCY_BUCKETS =
             new double[]{.001, .005, .01, .05, 0.075, .1, .25, .5, 1, 2, 5, 10};
@@ -14,6 +16,7 @@ public class Configuration {
     private final double[] latencyBuckets;
     private final List<String> labelHeaders;
     private final boolean isAddCodeLabelToHistograms;
+
     private Configuration(
             boolean isIncludeLatencyHistograms,
             CollectorRegistry collectorRegistry,
@@ -28,7 +31,9 @@ public class Configuration {
     }
 
 
-    /** Returns a {@link Configuration} for recording all cheap metrics about the rpcs. */
+    /**
+     * Returns a {@link Configuration} for recording all cheap metrics about the rpcs.
+     */
     public static Configuration cheapMetricsOnly() {
         return new Configuration(
                 false /* isIncludeLatencyHistograms */,
@@ -119,27 +124,37 @@ public class Configuration {
                 true /* isAddCodeLabelToHistograms */);
     }
 
-    /** Returns whether or not latency histograms for calls should be included. */
+    /**
+     * Returns whether or not latency histograms for calls should be included.
+     */
     public boolean isIncludeLatencyHistograms() {
         return isIncludeLatencyHistograms;
     }
 
-    /** Returns the {@link CollectorRegistry} used to record stats. */
+    /**
+     * Returns the {@link CollectorRegistry} used to record stats.
+     */
     public CollectorRegistry getCollectorRegistry() {
         return collectorRegistry;
     }
 
-    /** Returns the histogram buckets to use for latency metrics. */
+    /**
+     * Returns the histogram buckets to use for latency metrics.
+     */
     public double[] getLatencyBuckets() {
         return latencyBuckets;
     }
 
-    /** Returns the configured list of headers to be used as labels. */
+    /**
+     * Returns the configured list of headers to be used as labels.
+     */
     public List<String> getLabelHeaders() {
         return labelHeaders;
     }
 
-    /** Returns whether or not status code label should be added to latency histogram. */
+    /**
+     * Returns whether or not status code label should be added to latency histogram.
+     */
     public boolean isAddCodeLabelToHistograms() {
         return isAddCodeLabelToHistograms;
     }

client/src/main/java/info/frostfs/sdk/services/impl/interceptor/GrpcMethod.java

@@ -1,27 +1,33 @@
 package info.frostfs.sdk.services.impl.interceptor;
 
+import io.grpc.Channel;
 import io.grpc.MethodDescriptor;
 import io.grpc.MethodDescriptor.MethodType;
 
 public class GrpcMethod {
+    private final String targetName;
     private final String serviceName;
     private final String methodName;
     private final MethodType type;
 
-    private GrpcMethod(String serviceName, String methodName, MethodType type) {
+    private GrpcMethod(String targetName, String serviceName, String methodName, MethodType type) {
+        this.targetName = targetName;
         this.serviceName = serviceName;
         this.methodName = methodName;
         this.type = type;
     }
 
-    static GrpcMethod of(MethodDescriptor<?, ?> method) {
+    static GrpcMethod of(MethodDescriptor<?, ?> method, Channel channel) {
         String serviceName = MethodDescriptor.extractFullServiceName(method.getFullMethodName());
 
         // Full method names are of the form: "full.serviceName/MethodName". We extract the last part.
         String methodName = method.getFullMethodName().substring(serviceName.length() + 1);
-        return new GrpcMethod(serviceName, methodName, method.getType());
+        return new GrpcMethod(channel.authority(), serviceName, methodName, method.getType());
     }
 
+    String targetName() {
+        return targetName;
+    }
 
     String serviceName() {
         return serviceName;

client/src/main/java/info/frostfs/sdk/services/impl/interceptor/Labels.java

@@ -9,14 +9,21 @@ import java.util.Collections;
 import java.util.List;
 
 public class Labels {
-    /** Merges two string lists into an array, maintaining order of first list then second list. */
+    private Labels() {
+    }
+
+    /**
+     * Merges two string lists into an array, maintaining order of first list then second list.
+     */
     static String[] asArray(List<String> firstList, List<String> secondList) {
         List<String> list = new ArrayList<>(firstList);
         list.addAll(secondList);
         return list.toArray(new String[0]);
     }
 
-    /** Converts a list of strings to a list of grpc metadata keys. */
+    /**
+     * Converts a list of strings to a list of grpc metadata keys.
+     */
     static List<Key<String>> metadataKeys(List<String> headerNames) {
         List<Key<String>> keys = new ArrayList<>();
         for (String name : headerNames) {
@@ -41,9 +48,12 @@ public class Labels {
         return Collections.unmodifiableList(labels);
     }
 
-    /** Adds standard labels, as well as custom ones, in order, to a given collector. */
+    /**
+     * Adds standard labels, as well as custom ones, in order, to a given collector.
+     */
     static <T> T addLabels(SimpleCollector<T> collector, List<String> labels, GrpcMethod method) {
         List<String> allLabels = new ArrayList<>();
+        allLabels.add(method.targetName());
         allLabels.add(method.type());
         allLabels.add(method.serviceName());
         allLabels.add(method.methodName());

client/src/main/java/info/frostfs/sdk/services/impl/interceptor/MonitoringClientInterceptor.java

@@ -1,11 +1,8 @@
 package info.frostfs.sdk.services.impl.interceptor;
 
+import io.grpc.*;
+
 import java.time.Clock;
-import io.grpc.CallOptions;
-import io.grpc.Channel;
-import io.grpc.ClientCall;
-import io.grpc.ClientInterceptor;
-import io.grpc.MethodDescriptor;
 
 
 public class MonitoringClientInterceptor implements ClientInterceptor {
@@ -19,6 +16,7 @@ public class MonitoringClientInterceptor implements ClientInterceptor {
         this.configuration = configuration;
         this.clientMetricsFactory = clientMetricsFactory;
     }
+
     public static MonitoringClientInterceptor create(Configuration configuration) {
         return new MonitoringClientInterceptor(
                 Clock.systemDefaultZone(), configuration, new ClientMetrics.Factory(configuration));
@@ -27,7 +25,7 @@ public class MonitoringClientInterceptor implements ClientInterceptor {
     @Override
     public <R, S> ClientCall<R, S> interceptCall(
             MethodDescriptor<R, S> methodDescriptor, CallOptions callOptions, Channel channel) {
-        GrpcMethod grpcMethod = GrpcMethod.of(methodDescriptor);
+        GrpcMethod grpcMethod = GrpcMethod.of(methodDescriptor, channel);
         ClientMetrics metrics = clientMetricsFactory.createMetricsForMethod(grpcMethod);
         return new MonitoringClientCall<>(
                 channel.newCall(methodDescriptor, callOptions), metrics, grpcMethod, configuration, clock);

client/src/main/java/info/frostfs/sdk/services/impl/rwhelper/ObjectStreamer.java

@@ -0,0 +1,62 @@
+package info.frostfs.sdk.services.impl.rwhelper;
+
+import frostfs.object.ObjectServiceGrpc;
+import frostfs.object.Service;
+import info.frostfs.sdk.exceptions.ProcessFrostFSException;
+import info.frostfs.sdk.utils.WaitUtil;
+import io.grpc.stub.StreamObserver;
+import lombok.Getter;
+
+import static info.frostfs.sdk.constants.AppConst.DEFAULT_POLL_INTERVAL;
+import static info.frostfs.sdk.constants.ErrorConst.PROTO_MESSAGE_IS_EMPTY_TEMPLATE;
+import static java.util.Objects.isNull;
+
+public class ObjectStreamer {
+    private final StreamObserver<Service.PutRequest> requestObserver;
+    private final PutResponseCallback responseObserver;
+
+    public ObjectStreamer(ObjectServiceGrpc.ObjectServiceStub objectServiceStub) {
+        PutResponseCallback responseObserver = new PutResponseCallback();
+
+        this.responseObserver = responseObserver;
+        this.requestObserver = objectServiceStub.put(responseObserver);
+    }
+
+    public void write(Service.PutRequest request) {
+        if (isNull(request)) {
+            throw new ProcessFrostFSException(
+                    String.format(PROTO_MESSAGE_IS_EMPTY_TEMPLATE, Service.PutRequest.class.getName())
+            );
+        }
+        requestObserver.onNext(request);
+    }
+
+    public Service.PutResponse complete() {
+        requestObserver.onCompleted();
+
+        while (isNull(responseObserver.getResponse())) {
+            WaitUtil.sleep(DEFAULT_POLL_INTERVAL);
+        }
+
+        return responseObserver.getResponse();
+    }
+
+    @Getter
+    private static class PutResponseCallback implements StreamObserver<Service.PutResponse> {
+        private Service.PutResponse response;
+
+        @Override
+        public void onNext(Service.PutResponse putResponse) {
+            this.response = putResponse;
+        }
+
+        @Override
+        public void onError(Throwable throwable) {
+            throw new ProcessFrostFSException(throwable);
+        }
+
+        @Override
+        public void onCompleted() {
+        }
+    }
+}

client/src/main/java/info/frostfs/sdk/services/impl/rwhelper/ObjectWriter.java

@@ -1,63 +1,41 @@
 package info.frostfs.sdk.services.impl.rwhelper;
 
-import frostfs.object.ObjectServiceGrpc;
+import com.google.protobuf.ByteString;
 import frostfs.object.Service;
-import info.frostfs.sdk.exceptions.ProcessFrostFSException;
+import info.frostfs.sdk.dto.object.ObjectId;
-import info.frostfs.sdk.utils.WaitUtil;
+import info.frostfs.sdk.jdo.ClientEnvironment;
-import io.grpc.stub.StreamObserver;
+import info.frostfs.sdk.jdo.parameters.object.PrmObjectPutBase;
+import info.frostfs.sdk.tools.Verifier;
+import lombok.AllArgsConstructor;
 import lombok.Getter;
 
-import static info.frostfs.sdk.constants.ErrorConst.PROTO_MESSAGE_IS_EMPTY_TEMPLATE;
+import static info.frostfs.sdk.tools.RequestSigner.sign;
-import static java.util.Objects.isNull;
-
-public class ObjectWriter {
-    private static final long POLL_INTERVAL = 10;
-    private final StreamObserver<Service.PutRequest> requestObserver;
-    private final PutResponseCallback responseObserver;
-
-    public ObjectWriter(ObjectServiceGrpc.ObjectServiceStub objectServiceStub) {
-        PutResponseCallback responseObserver = new PutResponseCallback();
-
-        this.responseObserver = responseObserver;
-        this.requestObserver = objectServiceStub.put(responseObserver);
-    }
-
-    public void write(Service.PutRequest request) {
-        if (isNull(request)) {
-            throw new ProcessFrostFSException(
-                    String.format(PROTO_MESSAGE_IS_EMPTY_TEMPLATE, Service.PutRequest.class.getName())
-            );
-        }
-
-        requestObserver.onNext(request);
-    }
-
-    public Service.PutResponse complete() {
-        requestObserver.onCompleted();
-
-        while (isNull(responseObserver.getResponse())) {
-            WaitUtil.sleep(POLL_INTERVAL);
-        }
-
-        return responseObserver.getResponse();
-    }
 
+//todo specify a deadline for each stream request, not for the entire stream
 @Getter
-    private static class PutResponseCallback implements StreamObserver<Service.PutResponse> {
+@AllArgsConstructor
-        private Service.PutResponse response;
+public class ObjectWriter {
+    private final ClientEnvironment environment;
+    private final PrmObjectPutBase args;
+    private final ObjectStreamer streamer;
 
-        @Override
+    public void write(byte[] buffer) {
-        public void onNext(Service.PutResponse putResponse) {
+        var body = Service.PutRequest.Body.newBuilder()
-            this.response = putResponse;
+                .setChunk(ByteString.copyFrom(buffer))
+                .build();
+        var chunkRequest = Service.PutRequest.newBuilder()
+                .setBody(body)
+                .clearVerifyHeader();
+
+        sign(chunkRequest, environment.getKey());
+
+        streamer.write(chunkRequest.build());
     }
 
-        @Override
+    public ObjectId complete() {
-        public void onError(Throwable throwable) {
+        var response = streamer.complete();
-            throw new ProcessFrostFSException(throwable);
+        Verifier.checkResponse(response);
-        }
 
-        @Override
+        return new ObjectId(response.getBody().getObjectId().getValue().toByteArray());
-        public void onCompleted() {
-        }
     }
 }

client/src/main/java/info/frostfs/sdk/services/impl/rwhelper/PatchStreamer.java

@@ -0,0 +1,62 @@
+package info.frostfs.sdk.services.impl.rwhelper;
+
+import frostfs.object.ObjectServiceGrpc;
+import frostfs.object.Service;
+import info.frostfs.sdk.exceptions.ProcessFrostFSException;
+import info.frostfs.sdk.utils.WaitUtil;
+import io.grpc.stub.StreamObserver;
+import lombok.Getter;
+
+import static info.frostfs.sdk.constants.AppConst.DEFAULT_POLL_INTERVAL;
+import static info.frostfs.sdk.constants.ErrorConst.PROTO_MESSAGE_IS_EMPTY_TEMPLATE;
+import static java.util.Objects.isNull;
+
+public class PatchStreamer {
+    private final StreamObserver<Service.PatchRequest> requestObserver;
+    private final PatchResponseCallback responseObserver;
+
+    public PatchStreamer(ObjectServiceGrpc.ObjectServiceStub objectServiceStub) {
+        PatchResponseCallback responseObserver = new PatchResponseCallback();
+
+        this.responseObserver = responseObserver;
+        this.requestObserver = objectServiceStub.patch(responseObserver);
+    }
+
+    public void write(Service.PatchRequest request) {
+        if (isNull(request)) {
+            throw new ProcessFrostFSException(
+                    String.format(PROTO_MESSAGE_IS_EMPTY_TEMPLATE, Service.PutRequest.class.getName())
+            );
+        }
+        requestObserver.onNext(request);
+    }
+
+    public Service.PatchResponse complete() {
+        requestObserver.onCompleted();
+
+        while (isNull(responseObserver.getResponse())) {
+            WaitUtil.sleep(DEFAULT_POLL_INTERVAL);
+        }
+
+        return responseObserver.getResponse();
+    }
+
+    @Getter
+    private static class PatchResponseCallback implements StreamObserver<Service.PatchResponse> {
+        private Service.PatchResponse response;
+
+        @Override
+        public void onNext(Service.PatchResponse patchResponse) {
+            this.response = patchResponse;
+        }
+
+        @Override
+        public void onError(Throwable throwable) {
+            throw new ProcessFrostFSException(throwable);
+        }
+
+        @Override
+        public void onCompleted() {
+        }
+    }
+}

client/src/main/java/info/frostfs/sdk/services/impl/rwhelper/RangeReader.java

@@ -0,0 +1,25 @@
+package info.frostfs.sdk.services.impl.rwhelper;
+
+import frostfs.object.Service;
+import info.frostfs.sdk.tools.Verifier;
+
+import java.util.Iterator;
+
+public class RangeReader {
+    public Iterator<Service.GetRangeResponse> call;
+
+    public RangeReader(Iterator<Service.GetRangeResponse> call) {
+        this.call = call;
+    }
+
+    public byte[] readChunk() {
+        if (!call.hasNext()) {
+            return null;
+        }
+
+        var response = call.next();
+        Verifier.checkResponse(response);
+
+        return response.getBody().getChunk().toByteArray();
+    }
+}

client/src/main/java/info/frostfs/sdk/tools/GrpcClient.java

@@ -3,7 +3,7 @@ package info.frostfs.sdk.tools;
 import info.frostfs.sdk.exceptions.ValidationFrostFSException;
 import info.frostfs.sdk.jdo.ClientSettings;
 import info.frostfs.sdk.utils.Validator;
-import io.grpc.Channel;
+import io.grpc.ManagedChannel;
 import io.grpc.netty.NettyChannelBuilder;
 
 import java.net.URI;
@@ -16,7 +16,7 @@ public class GrpcClient {
     private GrpcClient() {
     }
 
-    public static Channel initGrpcChannel(ClientSettings clientSettings) {
+    public static ManagedChannel initGrpcChannel(ClientSettings clientSettings) {
         Validator.validate(clientSettings);
 
         try {
@@ -32,4 +32,15 @@ public class GrpcClient {
             );
         }
     }
+
+    public static ManagedChannel initGrpcChannel(String address) {
+        try {
+            URI uri = new URI(address);
+            return NettyChannelBuilder.forAddress(uri.getHost(), uri.getPort()).usePlaintext().build();
+        } catch (URISyntaxException exp) {
+            throw new ValidationFrostFSException(
+                    String.format(INVALID_HOST_TEMPLATE, address, exp.getMessage())
+            );
+        }
+    }
 }

client/src/main/java/info/frostfs/sdk/tools/RequestConstructor.java

@@ -4,9 +4,11 @@ import com.google.protobuf.ByteString;
 import com.google.protobuf.Message;
 import frostfs.session.Types;
 import info.frostfs.sdk.dto.response.MetaHeader;
+import info.frostfs.sdk.dto.session.SessionToken;
 import info.frostfs.sdk.exceptions.ValidationFrostFSException;
 import info.frostfs.sdk.jdo.ECDsa;
 import info.frostfs.sdk.mappers.response.MetaHeaderMapper;
+import info.frostfs.sdk.mappers.session.SessionMapper;
 import org.apache.commons.collections4.MapUtils;
 
 import java.util.Map;
@@ -65,13 +67,11 @@ public class RequestConstructor {
         setField(request, META_HEADER_FIELD_NAME, metaHeader.build());
     }
 
-    public static Types.SessionToken createObjectTokenContext(Types.SessionToken sessionToken,
+    public static Types.SessionToken createObjectTokenContext(SessionToken sessionToken,
                                                               frostfs.refs.Types.Address address,
                                                               Types.ObjectSessionContext.Verb verb,
                                                               ECDsa key) {
-        if (isNull(sessionToken) || sessionToken.getBody().getObject().getTarget().getSerializedSize() > 0) {
+        var protoToken = SessionMapper.deserializeSessionToken(sessionToken.getToken());
-            return sessionToken;
-        }
 
         var target = Types.ObjectSessionContext.Target.newBuilder()
                 .setContainer(address.getContainerId());
@@ -84,25 +84,23 @@ public class RequestConstructor {
                 .setTarget(target.build())
                 .setVerb(verb)
                 .build();
-        var body = sessionToken.getBody().toBuilder()
+        var body = protoToken.getBody().toBuilder()
                 .setObject(ctx)
                 .setSessionKey(ByteString.copyFrom(key.getPublicKeyByte()))
                 .build();
 
-        return sessionToken.toBuilder()
+        return protoToken.toBuilder()
                 .setSignature(signMessagePart(key, body))
                 .setBody(body)
                 .build();
     }
 
-    public static Types.SessionToken createContainerTokenContext(Types.SessionToken sessionToken,
+    public static Types.SessionToken createContainerTokenContext(SessionToken sessionToken,
                                                                  frostfs.refs.Types.ContainerID containerId,
                                                                  Types.ContainerSessionContext.Verb verb,
                                                                  frostfs.refs.Types.OwnerID ownerId,
                                                                  ECDsa key) {
-        if (isNull(sessionToken) || sessionToken.getBody().getContainer().getContainerId().getSerializedSize() > 0) {
+        var protoToken = SessionMapper.deserializeSessionToken(sessionToken.getToken());
-            return sessionToken;
-        }
 
         var containerSession = Types.ContainerSessionContext.newBuilder().setVerb(verb);
 
@@ -112,7 +110,7 @@ public class RequestConstructor {
             containerSession.setContainerId(containerId);
         }
 
-        var bodyBuilder = sessionToken.getBody().toBuilder()
+        var bodyBuilder = protoToken.getBody().toBuilder()
                 .setContainer(containerSession)
                 .setSessionKey(ByteString.copyFrom(key.getPublicKeyByte()));
 
@@ -122,7 +120,7 @@ public class RequestConstructor {
 
         var body = bodyBuilder.build();
 
-        return sessionToken.toBuilder()
+        return protoToken.toBuilder()
                 .setSignature(signMessagePart(key, body))
                 .setBody(body)
                 .build();

client/src/main/java/info/frostfs/sdk/tools/RequestSigner.java

@@ -119,5 +119,4 @@ public class RequestSigner {
         MessageHelper.setField(verifyBuilder, ORIGIN_SIGNATURE_FIELD_NAME, signMessagePart(key, verifyOrigin));
         MessageHelper.setField(request, VERIFY_HEADER_FIELD_NAME, verifyBuilder.build());
     }
-
 }

client/src/main/java/info/frostfs/sdk/utils/DeadLineUtil.java

@@ -0,0 +1,25 @@
+package info.frostfs.sdk.utils;
+
+import info.frostfs.sdk.exceptions.ValidationFrostFSException;
+import io.grpc.stub.AbstractStub;
+
+import java.util.concurrent.TimeUnit;
+
+import static info.frostfs.sdk.constants.ErrorConst.PARAM_IS_MISSING_TEMPLATE;
+import static java.util.Objects.isNull;
+
+public class DeadLineUtil {
+    private DeadLineUtil() {
+    }
+
+    public static <T extends AbstractStub<T>> T deadLineAfter(T stub, long deadLine, TimeUnit timeUnit) {
+        if (isNull(stub)) {
+            throw new ValidationFrostFSException(
+                    String.format(PARAM_IS_MISSING_TEMPLATE, AbstractStub.class.getName())
+            );
+        }
+
+        timeUnit = isNull(timeUnit) ? TimeUnit.MILLISECONDS : timeUnit;
+        return deadLine > 0 ? stub.withDeadlineAfter(deadLine, timeUnit) : stub;
+    }
+}

client/src/main/java/info/frostfs/sdk/utils/FrostFSMessages.java

@@ -0,0 +1,20 @@
+package info.frostfs.sdk.utils;
+
+import org.slf4j.Logger;
+
+public class FrostFSMessages {
+    private FrostFSMessages() {
+    }
+
+    public static void sessionCreationError(Logger logger, String address, String error) {
+        logger.warn("Failed to create frostfs session token for client. Address {}, {}", address, error);
+    }
+
+    public static void errorThresholdReached(Logger logger, String address, long threshold) {
+        logger.warn("Error threshold reached. Address {}, threshold {}", address, threshold);
+    }
+
+    public static void healthChanged(Logger logger, String address, boolean healthy, String error) {
+        logger.warn("Health has changed: {} healthy {}, reason {}", address, healthy, error);
+    }
+}

client/src/main/java/info/frostfs/sdk/utils/Validator.java

@@ -15,11 +15,15 @@ import static info.frostfs.sdk.constants.ErrorConst.FIELDS_DELIMITER_COMMA;
 import static java.util.Objects.isNull;
 
 public class Validator {
+    private Validator() {
+    }
+
     public static <T> void validate(T object) {
-        StringBuilder errorMessage = new StringBuilder().append(System.lineSeparator());
+        StringBuilder errorMessage = new StringBuilder();
         process(object, errorMessage);
 
         if (errorMessage.length() != 0) {
+            errorMessage.insert(0, System.lineSeparator());
             throw new ValidationFrostFSException(errorMessage.toString());
         }
     }

client/src/main/java/info/frostfs/sdk/utils/WaitUtil.java

@@ -1,6 +1,8 @@
 package info.frostfs.sdk.utils;
 
 public class WaitUtil {
+    private WaitUtil() {
+    }
 
     public static void sleep(long ms) {
         try {

client/src/test/java/info/frostfs/sdk/FileUtils.java

@@ -0,0 +1,31 @@
+package info.frostfs.sdk;
+
+import com.google.common.io.ByteStreams;
+import lombok.SneakyThrows;
+import org.apache.commons.lang3.StringUtils;
+
+import java.io.InputStream;
+
+import static java.util.Objects.isNull;
+
+public class FileUtils {
+
+    @SneakyThrows
+    public static byte[] resourceToBytes(String resourcePath) {
+        if (StringUtils.isBlank(resourcePath)) {
+            throw new IllegalArgumentException("Blank filename!");
+        }
+
+        ClassLoader loader = FileUtils.class.getClassLoader();
+        if (isNull(loader)) {
+            throw new RuntimeException("Class loader is null!");
+        }
+
+        InputStream certStream = loader.getResourceAsStream(resourcePath);
+        if (isNull(certStream)) {
+            throw new RuntimeException("Resource could not be found!");
+        }
+
+        return ByteStreams.toByteArray(certStream);
+    }
+}

client/src/test/java/info/frostfs/sdk/services/AccountingClientTest.java

@@ -0,0 +1,103 @@
+package info.frostfs.sdk.services;
+
+import frostfs.accounting.AccountingServiceGrpc;
+import frostfs.accounting.Service;
+import info.frostfs.sdk.Base58;
+import info.frostfs.sdk.dto.object.OwnerId;
+import info.frostfs.sdk.jdo.ClientEnvironment;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.services.impl.AccountingClientImpl;
+import info.frostfs.sdk.testgenerator.AccountingGenerator;
+import info.frostfs.sdk.tools.RequestConstructor;
+import info.frostfs.sdk.tools.RequestSigner;
+import info.frostfs.sdk.tools.Verifier;
+import io.grpc.Channel;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.junit.platform.commons.util.ReflectionUtils;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.MockedStatic;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import java.lang.reflect.Field;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.mockito.Mockito.*;
+
+@ExtendWith(MockitoExtension.class)
+class AccountingClientTest {
+    private static final String OWNER_ID = "NVxUSpEEJzYXZZtUs18PrJTD9QZkLLNQ8S";
+
+    private AccountingClientImpl accountingClient;
+
+    @Mock
+    private AccountingServiceGrpc.AccountingServiceBlockingStub AccountingServiceClient;
+    @Mock
+    private ClientEnvironment clientEnvironment;
+    @Mock
+    private Channel channel;
+
+    private MockedStatic<Verifier> verifierMock;
+    private MockedStatic<RequestConstructor> requestConstructorMock;
+    private MockedStatic<RequestSigner> requestSignerMock;
+
+    @BeforeEach
+    void setUp() throws IllegalAccessException {
+        when(clientEnvironment.getChannel()).thenReturn(channel);
+        when(clientEnvironment.getOwnerId()).thenReturn(new OwnerId(OWNER_ID));
+
+        accountingClient = new AccountingClientImpl(clientEnvironment);
+
+        Field field = ReflectionUtils.findFields(AccountingClientImpl.class,
+                        f -> f.getName().equals("serviceBlockingStub"),
+                        ReflectionUtils.HierarchyTraversalMode.TOP_DOWN)
+                .get(0);
+
+        field.setAccessible(true);
+        field.set(accountingClient, AccountingServiceClient);
+
+        verifierMock = Mockito.mockStatic(Verifier.class);
+        requestConstructorMock = Mockito.mockStatic(RequestConstructor.class);
+        requestSignerMock = Mockito.mockStatic(RequestSigner.class);
+    }
+
+    @AfterEach
+    void cleanUp() {
+        verifierMock.close();
+        requestConstructorMock.close();
+        requestSignerMock.close();
+    }
+
+    @Test
+    void getBalance_success() {
+        //Given
+        var response = AccountingGenerator.generateBalanceResponse();
+
+        var captor = ArgumentCaptor.forClass(Service.BalanceRequest.class);
+
+        when(AccountingServiceClient.balance(captor.capture())).thenReturn(response);
+
+        //When
+        var result = accountingClient.getBalance(new CallContext(0, null));
+
+        //Then
+        requestConstructorMock.verify(
+                () -> RequestConstructor.addMetaHeader(any(Service.BalanceRequest.Builder.class)),
+                times(1)
+        );
+        requestSignerMock.verify(
+                () -> RequestSigner.sign(any(Service.BalanceRequest.Builder.class), eq(null)),
+                times(1)
+        );
+        verifierMock.verify(() -> Verifier.checkResponse(response), times(1));
+
+        assertEquals(response.getBody().getBalance(), result);
+
+        var request = captor.getValue();
+        assertEquals(OWNER_ID, Base58.encode(request.getBody().getOwnerId().getValue().toByteArray()));
+    }
+}

client/src/test/java/info/frostfs/sdk/services/ApeManagerClientTest.java

@@ -0,0 +1,231 @@
+package info.frostfs.sdk.services;
+
+import frostfs.apemanager.APEManagerServiceGrpc;
+import frostfs.apemanager.Service;
+import info.frostfs.sdk.FileUtils;
+import info.frostfs.sdk.dto.chain.Chain;
+import info.frostfs.sdk.dto.chain.ChainTarget;
+import info.frostfs.sdk.enums.TargetType;
+import info.frostfs.sdk.exceptions.ValidationFrostFSException;
+import info.frostfs.sdk.jdo.ClientEnvironment;
+import info.frostfs.sdk.jdo.parameters.CallContext;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainAdd;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainList;
+import info.frostfs.sdk.jdo.parameters.ape.PrmApeChainRemove;
+import info.frostfs.sdk.services.impl.ApeManagerClientImpl;
+import info.frostfs.sdk.testgenerator.ApeManagerGenerator;
+import info.frostfs.sdk.tools.RequestConstructor;
+import info.frostfs.sdk.tools.RequestSigner;
+import info.frostfs.sdk.tools.Verifier;
+import io.grpc.Channel;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.junit.platform.commons.util.ReflectionUtils;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.MockedStatic;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import java.lang.reflect.Field;
+import java.util.stream.Collectors;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.Mockito.*;
+
+@ExtendWith(MockitoExtension.class)
+class ApeManagerClientTest {
+    private ApeManagerClientImpl apeManagerClient;
+
+    @Mock
+    private APEManagerServiceGrpc.APEManagerServiceBlockingStub apeManagerServiceClient;
+    @Mock
+    private ClientEnvironment clientEnvironment;
+    @Mock
+    private Channel channel;
+
+    private MockedStatic<Verifier> verifierMock;
+    private MockedStatic<RequestConstructor> requestConstructorMock;
+    private MockedStatic<RequestSigner> requestSignerMock;
+
+    @BeforeEach
+    void setUp() throws IllegalAccessException {
+        when(clientEnvironment.getChannel()).thenReturn(channel);
+        apeManagerClient = new ApeManagerClientImpl(clientEnvironment);
+
+        Field field = ReflectionUtils.findFields(ApeManagerClientImpl.class,
+                        f -> f.getName().equals("apeManagerServiceClient"),
+                        ReflectionUtils.HierarchyTraversalMode.TOP_DOWN)
+                .get(0);
+
+        field.setAccessible(true);
+        field.set(apeManagerClient, apeManagerServiceClient);
+
+        verifierMock = Mockito.mockStatic(Verifier.class);
+        requestConstructorMock = Mockito.mockStatic(RequestConstructor.class);
+        requestSignerMock = Mockito.mockStatic(RequestSigner.class);
+    }
+
+    @AfterEach
+    void cleanUp() {
+        verifierMock.close();
+        requestConstructorMock.close();
+        requestSignerMock.close();
+    }
+
+    @Test
+    void addChain_success() {
+        //Given
+        Chain chain = generateChain();
+        ChainTarget chainTarget = generateChainTarget();
+        PrmApeChainAdd params = new PrmApeChainAdd(chain, chainTarget);
+
+        var response = ApeManagerGenerator.generateAddChainResponse();
+
+        var captor = ArgumentCaptor.forClass(Service.AddChainRequest.class);
+
+        when(apeManagerServiceClient.addChain(captor.capture())).thenReturn(response);
+
+        //When
+        var result = apeManagerClient.addChain(params, new CallContext(0, null));
+
+        //Then
+        requestConstructorMock.verify(
+                () -> RequestConstructor.addMetaHeader(any(Service.AddChainRequest.Builder.class), eq(null)),
+                times(1)
+        );
+        requestSignerMock.verify(
+                () -> RequestSigner.sign(any(Service.AddChainRequest.Builder.class), eq(null)),
+                times(1)
+        );
+        verifierMock.verify(() -> Verifier.checkResponse(response), times(1));
+
+        assertThat(result).containsOnly(response.getBody().getChainId().toByteArray());
+
+        var request = captor.getValue();
+        assertThat(request.getBody().getChain().getRaw().toByteArray()).containsOnly(chain.getRaw());
+        assertEquals(chainTarget.getName(), request.getBody().getTarget().getName());
+        assertEquals(chainTarget.getType().value, request.getBody().getTarget().getType().getNumber());
+    }
+
+    @Test
+    void addChain_wrongParams() {
+        //Given
+        Chain chain = generateChain();
+        ChainTarget chainTarget = generateChainTarget();
+        PrmApeChainAdd params1 = new PrmApeChainAdd(null, chainTarget);
+        PrmApeChainAdd params2 = new PrmApeChainAdd(chain, null);
+        PrmApeChainAdd params3 = new PrmApeChainAdd(null, null);
+
+
+        //When + Then
+        assertThrows(ValidationFrostFSException.class, () -> apeManagerClient.addChain(params1, new CallContext()));
+        assertThrows(ValidationFrostFSException.class, () -> apeManagerClient.addChain(params2, new CallContext()));
+        assertThrows(ValidationFrostFSException.class, () -> apeManagerClient.addChain(params3, new CallContext()));
+    }
+
+    @Test
+    void removeChain_success() {
+        //Given
+        Chain chain = generateChain();
+        ChainTarget chainTarget = generateChainTarget();
+        PrmApeChainRemove params = new PrmApeChainRemove(chain, chainTarget);
+
+        var response = ApeManagerGenerator.generateRemoveChainResponse();
+
+        var captor = ArgumentCaptor.forClass(Service.RemoveChainRequest.class);
+
+        when(apeManagerServiceClient.removeChain(captor.capture())).thenReturn(response);
+
+        //When
+        apeManagerClient.removeChain(params, new CallContext(0, null));
+
+        //Then
+        requestConstructorMock.verify(
+                () -> RequestConstructor.addMetaHeader(any(Service.RemoveChainRequest.Builder.class), eq(null)),
+                times(1)
+        );
+        requestSignerMock.verify(
+                () -> RequestSigner.sign(any(Service.RemoveChainRequest.Builder.class), eq(null)),
+                times(1)
+        );
+        verifierMock.verify(() -> Verifier.checkResponse(response), times(1));
+
+        var request = captor.getValue();
+        assertThat(request.getBody().getChainId().toByteArray()).containsOnly(chain.getRaw());
+        assertEquals(chainTarget.getName(), request.getBody().getTarget().getName());
+        assertEquals(chainTarget.getType().value, request.getBody().getTarget().getType().getNumber());
+    }
+
+    @Test
+    void removeChain_wrongParams() {
+        //Given
+        Chain chain = generateChain();
+        ChainTarget chainTarget = generateChainTarget();
+        PrmApeChainRemove params1 = new PrmApeChainRemove(null, chainTarget);
+        PrmApeChainRemove params2 = new PrmApeChainRemove(chain, null);
+        PrmApeChainRemove params3 = new PrmApeChainRemove(null, null);
+
+        //When + Then
+        assertThrows(ValidationFrostFSException.class, () -> apeManagerClient.removeChain(params1, new CallContext()));
+        assertThrows(ValidationFrostFSException.class, () -> apeManagerClient.removeChain(params2, new CallContext()));
+        assertThrows(ValidationFrostFSException.class, () -> apeManagerClient.removeChain(params3, new CallContext()));
+    }
+
+    @Test
+    void listChain_success() {
+        //Given
+        ChainTarget chainTarget = generateChainTarget();
+        PrmApeChainList params = new PrmApeChainList(chainTarget);
+
+        var response = ApeManagerGenerator.generateListChainsResponse();
+
+        var captor = ArgumentCaptor.forClass(Service.ListChainsRequest.class);
+
+        when(apeManagerServiceClient.listChains(captor.capture())).thenReturn(response);
+
+        //When
+        var result = apeManagerClient.listChains(params, new CallContext(0, null));
+
+        //Then
+        requestConstructorMock.verify(
+                () -> RequestConstructor.addMetaHeader(any(Service.ListChainsRequest.Builder.class), eq(null)),
+                times(1)
+        );
+        requestSignerMock.verify(
+                () -> RequestSigner.sign(any(Service.ListChainsRequest.Builder.class), eq(null)),
+                times(1)
+        );
+        verifierMock.verify(() -> Verifier.checkResponse(response), times(1));
+
+        var actual = result.stream().map(Chain::getRaw).collect(Collectors.toList());
+        var expected = response.getBody().getChainsList().stream()
+                .map(chain -> chain.getRaw().toByteArray())
+                .collect(Collectors.toList());
+        assertThat(actual).hasSize(10).containsAll(expected);
+
+        var request = captor.getValue();
+        assertEquals(chainTarget.getName(), request.getBody().getTarget().getName());
+        assertEquals(chainTarget.getType().value, request.getBody().getTarget().getType().getNumber());
+    }
+
+    @Test
+    void listChain_wrongParams() {
+        //When + Then
+        assertThrows(ValidationFrostFSException.class,
+                () -> apeManagerClient.listChains(new PrmApeChainList(null), new CallContext()));
+    }
+
+    private Chain generateChain() {
+        byte[] chainRaw = FileUtils.resourceToBytes("test_chain_raw.json");
+        return new Chain(chainRaw);
+    }
+
+    private ChainTarget generateChainTarget() {
+        return new ChainTarget("BzQw5HH3feoxFDD5tCT87Y1726qzgLfxEE7wgtoRzB3R", TargetType.NAMESPACE);
+    }
+}

client/src/test/java/info/frostfs/sdk/testgenerator/AccountingGenerator.java

@@ -0,0 +1,42 @@
+package info.frostfs.sdk.testgenerator;
+
+import frostfs.accounting.Service;
+import frostfs.accounting.Types;
+
+public class AccountingGenerator {
+
+    public static Service.BalanceRequest generateBalanceRequest() {
+        return Service.BalanceRequest.newBuilder()
+                .setBody(generateBalanceRequestBody())
+                .setMetaHeader(SessionGenerator.generateRequestMetaHeader())
+                .setVerifyHeader(SessionGenerator.generateRequestVerificationHeader())
+                .build();
+    }
+
+    public static Service.BalanceRequest.Body generateBalanceRequestBody() {
+        return Service.BalanceRequest.Body.newBuilder()
+                .setOwnerId(RefsGenerator.generateOwnerID())
+                .build();
+    }
+
+    public static Service.BalanceResponse generateBalanceResponse() {
+        return Service.BalanceResponse.newBuilder()
+                .setBody(generateBalanceResponseBody())
+                .setMetaHeader(SessionGenerator.generateResponseMetaHeader())
+                .setVerifyHeader(SessionGenerator.generateResponseVerificationHeader())
+                .build();
+    }
+
+    public static Service.BalanceResponse.Body generateBalanceResponseBody() {
+        return Service.BalanceResponse.Body.newBuilder()
+                .setBalance(generateDecimal())
+                .build();
+    }
+
+    public static Types.Decimal generateDecimal() {
+        return Types.Decimal.newBuilder()
+                .setValue(1)
+                .setPrecision(2)
+                .build();
+    }
+}

client/src/test/java/info/frostfs/sdk/testgenerator/ApeManagerGenerator.java

@@ -0,0 +1,124 @@
+package info.frostfs.sdk.testgenerator;
+
+import com.google.protobuf.ByteString;
+import frostfs.ape.Types;
+import frostfs.apemanager.Service;
+import info.frostfs.sdk.FileUtils;
+import info.frostfs.sdk.Helper;
+
+import java.util.ArrayList;
+
+public class ApeManagerGenerator {
+
+    private static ByteString generateChainID() {
+        return ByteString.copyFrom(Helper.getByteArrayFromHex("616c6c6f774f626a476574436e72"));
+    }
+
+    private static Types.Chain generateRawChain() {
+        byte[] chainRaw = FileUtils.resourceToBytes("test_chain_raw.json");
+
+        return Types.Chain.newBuilder()
+                .setRaw(ByteString.copyFrom(chainRaw))
+                .build();
+    }
+
+    private static Iterable<Types.Chain> generateRawChains(int size) {
+        var list = new ArrayList<Types.Chain>(size);
+        for (int i = 0; i < size; i++) {
+            list.add(generateRawChain());
+        }
+
+        return list;
+    }
+
+    private static Types.ChainTarget generateChainTarget() {
+        return Types.ChainTarget.newBuilder()
+                .setType(Types.TargetType.CONTAINER)
+                .setName("BzQw5HH3feoxFDD5tCT87Y1726qzgLfxEE7wgtoRzB3R")
+                .build();
+    }
+
+    public static Service.AddChainRequest.Body generateAddChainRequestBody() {
+        return Service.AddChainRequest.Body.newBuilder()
+                .setTarget(generateChainTarget())
+                .setChain(generateRawChain())
+                .build();
+    }
+
+    public static Service.AddChainRequest generateAddChainRequest() {
+        return Service.AddChainRequest.newBuilder()
+                .setBody(generateAddChainRequestBody())
+                .setMetaHeader(SessionGenerator.generateRequestMetaHeader())
+                .setVerifyHeader(SessionGenerator.generateRequestVerificationHeader())
+                .build();
+    }
+
+    public static Service.AddChainResponse.Body generateAddChainResponseBody() {
+        return Service.AddChainResponse.Body.newBuilder()
+                .setChainId(generateChainID())
+                .build();
+    }
+
+    public static Service.AddChainResponse generateAddChainResponse() {
+        return Service.AddChainResponse.newBuilder()
+                .setBody(generateAddChainResponseBody())
+                .setMetaHeader(SessionGenerator.generateResponseMetaHeader())
+                .setVerifyHeader(SessionGenerator.generateResponseVerificationHeader())
+                .build();
+    }
+
+    public static Service.RemoveChainRequest.Body generateRemoveChainRequestBody() {
+        return Service.RemoveChainRequest.Body.newBuilder()
+                .setChainId(generateChainID())
+                .setTarget(generateChainTarget())
+                .build();
+    }
+
+    public static Service.RemoveChainRequest generateRemoveChainRequest() {
+        return Service.RemoveChainRequest.newBuilder()
+                .setBody(generateRemoveChainRequestBody())
+                .setMetaHeader(SessionGenerator.generateRequestMetaHeader())
+                .setVerifyHeader(SessionGenerator.generateRequestVerificationHeader())
+                .build();
+    }
+
+    public static Service.RemoveChainResponse.Body generateRemoveChainResponseBody() {
+        return Service.RemoveChainResponse.Body.getDefaultInstance();
+    }
+
+    public static Service.RemoveChainResponse generateRemoveChainResponse() {
+        return Service.RemoveChainResponse.newBuilder()
+                .setBody(generateRemoveChainResponseBody())
+                .setMetaHeader(SessionGenerator.generateResponseMetaHeader())
+                .setVerifyHeader(SessionGenerator.generateResponseVerificationHeader())
+                .build();
+    }
+
+    public static Service.ListChainsRequest.Body generateListChainsRequestBody() {
+        return Service.ListChainsRequest.Body.newBuilder()
+                .setTarget(generateChainTarget())
+                .build();
+    }
+
+    public static Service.ListChainsRequest generateListChainsRequest() {
+        return Service.ListChainsRequest.newBuilder()
+                .setBody(generateListChainsRequestBody())
+                .setMetaHeader(SessionGenerator.generateRequestMetaHeader())
+                .setVerifyHeader(SessionGenerator.generateRequestVerificationHeader())
+                .build();
+    }
+
+    public static Service.ListChainsResponse.Body generateListChainsResponseBody() {
+        return Service.ListChainsResponse.Body.newBuilder()
+                .addAllChains(generateRawChains(10))
+                .build();
+    }
+
+    public static Service.ListChainsResponse generateListChainsResponse() {
+        return Service.ListChainsResponse.newBuilder()
+                .setBody(generateListChainsResponseBody())
+                .setMetaHeader(SessionGenerator.generateResponseMetaHeader())
+                .setVerifyHeader(SessionGenerator.generateResponseVerificationHeader())
+                .build();
+    }
+}

client/src/test/java/info/frostfs/sdk/testgenerator/RefsGenerator.java

@@ -0,0 +1,65 @@
+package info.frostfs.sdk.testgenerator;
+
+import com.google.protobuf.ByteString;
+import frostfs.refs.Types;
+
+import java.util.Arrays;
+import java.util.Random;
+
+public class RefsGenerator {
+
+    public static Types.Version generateVersion() {
+        return Types.Version.newBuilder()
+                .setMajor(2)
+                .setMinor(1)
+                .build();
+    }
+
+    public static Types.OwnerID generateOwnerID() {
+        return Types.OwnerID.newBuilder()
+                .setValue(ByteString.copyFrom(new byte[]{1, 2, 3}))
+                .build();
+    }
+
+    public static Types.Address generateAddress() {
+        return Types.Address.newBuilder()
+                .setObjectId(generateObjectID())
+                .setContainerId(generateContainerID())
+                .build();
+    }
+
+    public static Types.ObjectID generateObjectID() {
+        return Types.ObjectID.newBuilder()
+                .setValue(ByteString.copyFrom(new byte[]{1, 2, 3}))
+                .build();
+    }
+
+    public static Iterable<Types.ObjectID> generateObjectIDs() {
+        return Arrays.asList(generateObjectID(), generateObjectID());
+    }
+
+    public static Types.ContainerID generateContainerID() {
+        return Types.ContainerID.newBuilder()
+                .setValue(ByteString.copyFrom(new byte[]{1, 2, 3}))
+                .build();
+    }
+
+    public static Iterable<Types.ContainerID> generateContainerIDs() {
+        return Arrays.asList(generateContainerID(), generateContainerID());
+    }
+
+    public static Types.Signature generateSignature() {
+        return Types.Signature.newBuilder()
+                .setKey(ByteString.copyFrom(new byte[]{1}))
+                .setSign(ByteString.copyFrom(new byte[]{2}))
+                .setScheme(Types.SignatureScheme.forNumber(new Random().nextInt(3)))
+                .build();
+    }
+
+    public static Types.Checksum generateChecksum() {
+        return Types.Checksum.newBuilder()
+                .setType(Types.ChecksumType.SHA256)
+                .setSum(ByteString.copyFrom(new byte[]{1, 2, 3}))
+                .build();
+    }
+}

client/src/test/java/info/frostfs/sdk/testgenerator/SessionGenerator.java

@@ -0,0 +1,178 @@
+package info.frostfs.sdk.testgenerator;
+
+import com.google.protobuf.ByteString;
+import frostfs.session.Service;
+import frostfs.session.Types;
+
+import java.util.Arrays;
+import java.util.Random;
+
+public class SessionGenerator {
+
+    public static Service.CreateRequest.Body generateCreateRequestBody() {
+        return Service.CreateRequest.Body.newBuilder()
+                .setExpiration(555)
+                .setOwnerId(RefsGenerator.generateOwnerID())
+                .build();
+    }
+
+    public static Service.CreateRequest generateCreateRequest() {
+        return Service.CreateRequest.newBuilder()
+                .setBody(generateCreateRequestBody())
+                .setMetaHeader(generateRequestMetaHeader())
+                .setVerifyHeader(generateRequestVerificationHeader())
+                .build();
+    }
+
+    public static Service.CreateResponse.Body generateCreateResponseBody() {
+        return Service.CreateResponse.Body.newBuilder()
+                .setId(ByteString.copyFrom(new byte[]{1, 2, 3}))
+                .setSessionKey(ByteString.copyFrom(new byte[]{4, 5, 6}))
+                .build();
+    }
+
+    public static Service.CreateResponse generateCreateResponse() {
+        return Service.CreateResponse.newBuilder()
+                .setBody(generateCreateResponseBody())
+                .setMetaHeader(generateResponseMetaHeader())
+                .setVerifyHeader(generateResponseVerificationHeader())
+                .build();
+    }
+
+    public static Types.ResponseVerificationHeader generateResponseVerificationHeader() {
+        return generateResponseVerificationHeader(true);
+    }
+
+    public static Types.ResponseVerificationHeader generateResponseVerificationHeader(boolean withOrigin) {
+        var builder = Types.ResponseVerificationHeader.newBuilder()
+                .setBodySignature(RefsGenerator.generateSignature())
+                .setMetaSignature(RefsGenerator.generateSignature())
+                .setOriginSignature(RefsGenerator.generateSignature());
+
+        if (withOrigin) {
+            builder.setOrigin(generateResponseVerificationHeader(false));
+        }
+
+        return builder.build();
+    }
+
+    public static Types.ResponseMetaHeader generateResponseMetaHeader() {
+        return generateResponseMetaHeader(true);
+    }
+
+    public static Types.ResponseMetaHeader generateResponseMetaHeader(boolean withOrigin) {
+        var builder = Types.ResponseMetaHeader.newBuilder()
+                .setEpoch(13)
+                .setTtl(100)
+                .addAllXHeaders(generateXHeaders())
+                .setVersion(RefsGenerator.generateVersion())
+                .setStatus(StatusGenerator.generateStatus());
+
+        if (withOrigin) {
+            builder.setOrigin(generateResponseMetaHeader(false));
+        }
+
+        return builder.build();
+    }
+
+    public static Types.RequestVerificationHeader generateRequestVerificationHeader() {
+        return generateRequestVerificationHeader(true);
+    }
+
+    public static Types.RequestVerificationHeader generateRequestVerificationHeader(boolean withOrigin) {
+        var builder = Types.RequestVerificationHeader.newBuilder()
+                .setBodySignature(RefsGenerator.generateSignature())
+                .setMetaSignature(RefsGenerator.generateSignature())
+                .setOriginSignature(RefsGenerator.generateSignature());
+
+        if (withOrigin) {
+            builder.setOrigin(generateRequestVerificationHeader(false));
+        }
+
+        return builder.build();
+    }
+
+    public static Types.RequestMetaHeader generateRequestMetaHeader() {
+        return generateRequestMetaHeader(true);
+    }
+
+    public static Types.RequestMetaHeader generateRequestMetaHeader(boolean withOrigin) {
+        var builder = Types.RequestMetaHeader.newBuilder()
+                .setEpoch(13)
+                .setTtl(100)
+                .setMagicNumber(1337)
+                .addAllXHeaders(generateXHeaders())
+                .setVersion(RefsGenerator.generateVersion())
+                .setSessionToken(generateSessionToken());
+
+        if (withOrigin) {
+            builder.setOrigin(generateRequestMetaHeader(false));
+        }
+
+        return builder.build();
+    }
+
+    public static Types.SessionToken.Body.TokenLifetime generateTokenLifeTime() {
+        return Types.SessionToken.Body.TokenLifetime.newBuilder()
+                .setExp(1)
+                .setIat(2)
+                .setNbf(3)
+                .build();
+    }
+
+    public static Types.SessionToken.Body generateSessionTokenBody() {
+        var builder = Types.SessionToken.Body.newBuilder()
+                .setId(ByteString.copyFrom(new byte[]{1}))
+                .setSessionKey(ByteString.copyFrom(new byte[]{2}))
+                .setOwnerId(RefsGenerator.generateOwnerID())
+                .setLifetime(generateTokenLifeTime());
+
+        if (new Random().nextBoolean()) {
+            builder.setContainer(generateContainerSessionContext());
+        } else {
+            builder.setObject(generateObjectSessionContext());
+        }
+
+        return builder.build();
+    }
+
+    public static Types.SessionToken generateSessionToken() {
+        return Types.SessionToken.newBuilder()
+                .setBody(generateSessionTokenBody())
+                .setSignature(RefsGenerator.generateSignature())
+                .build();
+    }
+
+    public static Types.ObjectSessionContext.Target generateObjectSessionContextTarget() {
+        return Types.ObjectSessionContext.Target.newBuilder()
+                .setContainer(RefsGenerator.generateContainerID())
+                .addObjects(RefsGenerator.generateObjectID())
+                .build();
+    }
+
+    public static Types.ObjectSessionContext generateObjectSessionContext() {
+        return Types.ObjectSessionContext.newBuilder()
+                .setVerb(Types.ObjectSessionContext.Verb.HEAD)
+                .setTarget(generateObjectSessionContextTarget())
+                .build();
+    }
+
+    public static Types.ContainerSessionContext generateContainerSessionContext() {
+        return Types.ContainerSessionContext.newBuilder()
+                .setVerb(Types.ContainerSessionContext.Verb.DELETE)
+                .setWildcard(true)
+                .setContainerId(RefsGenerator.generateContainerID())
+                .build();
+    }
+
+    public static Types.XHeader generateXHeader() {
+        return Types.XHeader.newBuilder()
+                .setKey("key")
+                .setValue("val")
+                .build();
+    }
+
+    public static Iterable<Types.XHeader> generateXHeaders() {
+        return Arrays.asList(generateXHeader(), generateXHeader());
+    }
+}

client/src/test/java/info/frostfs/sdk/testgenerator/StatusGenerator.java

@@ -0,0 +1,29 @@
+package info.frostfs.sdk.testgenerator;
+
+import com.google.protobuf.ByteString;
+import frostfs.status.Types;
+
+import java.util.Arrays;
+
+public class StatusGenerator {
+
+    public static Types.Status.Detail generateDetail() {
+        return Types.Status.Detail.newBuilder()
+                .setId(345)
+                .setValue(ByteString.copyFrom("value".getBytes()))
+                .build();
+    }
+
+    public static Iterable<Types.Status.Detail> generateDetails() {
+        return Arrays.asList(generateDetail(), generateDetail());
+    }
+
+    public static Types.Status generateStatus() {
+        return Types.Status.newBuilder()
+                .setCode(2)
+                .setMessage("some string")
+                .addAllDetails(generateDetails())
+                .build();
+    }
+
+}

client/src/test/resources/test_chain_raw.json

@@ -0,0 +1,30 @@
+{
+  "ID": "",
+  "Rules": [
+    {
+      "Status": "Allow",
+      "Actions": {
+        "Inverted": false,
+        "Names": [
+          "GetObject"
+        ]
+      },
+      "Resources": {
+        "Inverted": false,
+        "Names": [
+          "native:object/*"
+        ]
+      },
+      "Any": false,
+      "Condition": [
+        {
+          "Op": "StringEquals",
+          "Object": "Resource",
+          "Key": "Department",
+          "Value": "HR"
+        }
+      ]
+    }
+  ],
+  "MatchType": "DenyPriority"
+}

cryptography/pom.xml

@@ -6,7 +6,7 @@
     <parent>
         <groupId>info.frostfs.sdk</groupId>
         <artifactId>frostfs-sdk-java</artifactId>
-        <version>0.1.0</version>
+        <version>${revision}</version>
     </parent>
 
     <artifactId>cryptography</artifactId>
@@ -21,7 +21,7 @@
         <dependency>
             <groupId>info.frostfs.sdk</groupId>
             <artifactId>exceptions</artifactId>
-            <version>0.1.0</version>
+            <version>${revision}</version>
         </dependency>
         <dependency>
             <groupId>com.google.protobuf</groupId>

cryptography/src/main/java/info/frostfs/sdk/Helper.java

@@ -3,6 +3,7 @@ package info.frostfs.sdk;
 import com.google.protobuf.ByteString;
 import com.google.protobuf.Message;
 import info.frostfs.sdk.exceptions.ValidationFrostFSException;
+import org.apache.commons.lang3.StringUtils;
 import org.bouncycastle.crypto.digests.RIPEMD160Digest;
 
 import java.math.BigInteger;
@@ -15,6 +16,7 @@ import static java.util.Objects.isNull;
 public class Helper {
     private static final String SHA256 = "SHA-256";
     private static final int RIPEMD_160_HASH_BYTE_LENGTH = 20;
+    private static final int HEX_RADIX = 16;
 
     private Helper() {
     }
@@ -62,4 +64,12 @@ public class Helper {
 
         return String.format("%0" + (value.length << 1) + "x", new BigInteger(1, value));
     }
+
+    public static byte[] getByteArrayFromHex(String hex) {
+        if (StringUtils.isBlank(hex)) {
+            throw new ValidationFrostFSException(INPUT_PARAM_IS_MISSING);
+        }
+
+        return new BigInteger(hex, HEX_RADIX).toByteArray();
+    }
 }

cryptography/src/test/java/info/frostfs/sdk/HelperTest.java

@@ -108,4 +108,23 @@ public class HelperTest {
         assertThrows(ValidationFrostFSException.class, () -> Helper.getHexString(null));
         assertThrows(ValidationFrostFSException.class, () -> Helper.getHexString(new byte[]{}));
     }
+
+    @Test
+    void getByteArrayFromHex_success() {
+        //Given
+        var value = "0102030405";
+
+        //When
+        var result = Helper.getByteArrayFromHex(value);
+
+        //Then
+        assertThat(result).containsOnly(new byte[]{1, 2, 3, 4, 5});
+    }
+
+    @Test
+    void getByteArrayFromHex_wrong() {
+        //When + Then
+        assertThrows(ValidationFrostFSException.class, () -> Helper.getByteArrayFromHex(null));
+        assertThrows(ValidationFrostFSException.class, () -> Helper.getByteArrayFromHex(""));
+    }
 }