src/FrostFS.SDK.ClientV2/Client.cs

@@ -2,6 +2,7 @@
 using FrostFS.Netmap;
 using FrostFS.Object;
 using FrostFS.SDK.ClientV2.Interfaces;
+using FrostFS.SDK.ClientV2.Parameters;
 using FrostFS.SDK.Cryptography;
 using FrostFS.SDK.ModelsV2;
 using FrostFS.SDK.ModelsV2.Netmap;
@@ -96,7 +97,8 @@ public class Client : IFrostFSClient
             channel: channel,
             version: new Version(2, 13));
 
-        CheckFrostFsVersionSupport();
+        // TODO: define timeout logic
+        CheckFrostFsVersionSupport(new Context { Timeout = TimeSpan.FromSeconds(20)});
     }
 
     public void Dispose()
@@ -115,105 +117,106 @@ public class Client : IFrostFSClient
     }
 
     #region ContainerImplementation
-    public Task<ModelsV2.Container> GetContainerAsync(ContainerId containerId, Context? ctx = null)
+    public Task<ModelsV2.Container> GetContainerAsync(PrmGetContainer args)
     {
-        var service = GetContainerService(ref ctx);
+        var service = GetContainerService(args);
-        return service.GetContainerAsync(containerId, ctx!);
+        return service.GetContainerAsync(args);
     }
 
-    public IAsyncEnumerable<ContainerId> ListContainersAsync(Context? ctx = default)
+    public IAsyncEnumerable<ContainerId> ListContainersAsync(PrmListContainer? args = null)
     {
-        var service = GetContainerService(ref ctx);      
+        args = args ?? new PrmListContainer();
-        return service.ListContainersAsync(ctx!);
+        var service = GetContainerService(args);      
+        return service.ListContainersAsync(args);
     }
 
-    public Task<ContainerId> CreateContainerAsync(ModelsV2.Container container, Context? ctx = null)
+    public Task<ContainerId> CreateContainerAsync(PrmCreateContainer args)
     {
-        var service = GetContainerService(ref ctx);
+        var service = GetContainerService(args);
-        return service.CreateContainerAsync(container, ctx!);
+        return service.CreateContainerAsync(args);
     }
 
-    public Task DeleteContainerAsync(ContainerId containerId, Context? ctx = default)
+    public Task DeleteContainerAsync(PrmDeleteContainer args)
     {
-        var service = GetContainerService(ref ctx);
+        var service = GetContainerService(args);
-        return service.DeleteContainerAsync(containerId, ctx!);
+        return service.DeleteContainerAsync(args);
     }
     #endregion
 
     #region NetworkImplementation
-    public Task<NetmapSnapshot> GetNetmapSnapshotAsync(Context? ctx = default)
+    public Task<NetmapSnapshot> GetNetmapSnapshotAsync(PrmGetNetmapSnapshot? args)
     {
-        var service = GetNetmapService(ref ctx);
+        args ??= new PrmGetNetmapSnapshot();
-        return service.GetNetmapSnapshotAsync(ctx!);
+        var service = GetNetmapService(args);
+        return service.GetNetmapSnapshotAsync(args);
     }
 
-    public Task<ModelsV2.Netmap.NodeInfo> GetNodeInfoAsync(Context? ctx = default)
+    public Task<ModelsV2.Netmap.NodeInfo> GetNodeInfoAsync(PrmGetNodeInfo? args)
     {
-        var service = GetNetmapService(ref ctx);
+        args ??= new PrmGetNodeInfo();
-        return service.GetLocalNodeInfoAsync(ctx!);
+        var service = GetNetmapService(args);
+        return service.GetLocalNodeInfoAsync(args);
     }
 
-    public Task<NetworkSettings> GetNetworkSettingsAsync(Context? ctx = default)
+    public Task<NetworkSettings> GetNetworkSettingsAsync(PrmGetNetworkSettings? args)
     {
-        var service = GetNetmapService(ref ctx);
+        args ??= new PrmGetNetworkSettings();
-        return service.GetNetworkSettingsAsync(ctx!);
+        var service = GetNetmapService(args);
+        return service.GetNetworkSettingsAsync(args.Context!);
     }
     #endregion
 
     #region ObjectImplementation
-    public Task<ObjectHeader> GetObjectHeadAsync(ContainerId containerId, ObjectId objectId, Context? ctx = default)
+    public Task<ObjectHeader> GetObjectHeadAsync(PrmGetObjectHead args)
     {
-        var service = GetObjectService(ref ctx);
+        var service = GetObjectService(args);
-        return service.GetObjectHeadAsync(containerId, objectId, ctx!);
+        return service.GetObjectHeadAsync(args);
     }
 
-    public Task<FrostFsObject> GetObjectAsync(ContainerId containerId, ObjectId objectId, Context? ctx = default)
+    public Task<FrostFsObject> GetObjectAsync(PrmGetObject args)
     {
-        var service = GetObjectService(ref ctx);
+        var service = GetObjectService(args);
-        return service.GetObjectAsync(containerId, objectId, ctx!);
+        return service.GetObjectAsync(args);
     }
 
-    public Task<ObjectId> PutObjectAsync(PutObjectParameters putObjectParameters, Context? ctx = default)
+    public Task<ObjectId> PutObjectAsync(PrmPutObject args)
     {
-        var service = GetObjectService(ref ctx);
+        var service = GetObjectService(args);
-        return service.PutObjectAsync(putObjectParameters, ctx!);
+        return service.PutObjectAsync(args);
     }
 
-    public Task<ObjectId> PutSingleObjectAsync(FrostFsObject obj, Context? ctx = default)
+    public Task<ObjectId> PutSingleObjectAsync(PrmPutSingleObject args)
     {
-        var service = GetObjectService(ref ctx);
+        var service = GetObjectService(args);
-        return service.PutSingleObjectAsync(obj, ctx!);
+        return service.PutSingleObjectAsync(args);
     }
 
-    public Task DeleteObjectAsync(ContainerId containerId, ObjectId objectId, Context? ctx = default)
+    public Task DeleteObjectAsync(PrmDeleteObject args)
     {
-        var service = GetObjectService(ref ctx);
+        var service = GetObjectService(args);
-        return service.DeleteObjectAsync(containerId, objectId, ctx!);
+        return service.DeleteObjectAsync(args);
     }
 
-    public IAsyncEnumerable<ObjectId> SearchObjectsAsync(
+    public IAsyncEnumerable<ObjectId> SearchObjectsAsync(PrmSearchObject args)
-        ContainerId containerId, 
-        IEnumerable<ObjectFilter> filters,
-        Context? ctx = default)
     {
-        var service = GetObjectService(ref ctx);
+        var service = GetObjectService(args);
-        return service.SearchObjectsAsync(containerId, filters, ctx!);
+        return service.SearchObjectsAsync(args);
     }
     #endregion
 
     #region SessionImplementation
-    public async Task<ModelsV2.SessionToken> CreateSessionAsync(ulong expiration, Context? ctx = null)
+    public async Task<ModelsV2.SessionToken> CreateSessionAsync(PrmCreateSession args)
     {
-        var session = await CreateSessionInternalAsync(expiration, ctx);
+        var session = await CreateSessionInternalAsync(args);
         var token = session.Serialize();
         
-        return new ModelsV2.SessionToken([], token);
+        return new ModelsV2.SessionToken(token);
     }
 
-    public Task<Session.SessionToken> CreateSessionInternalAsync(ulong expiration, Context? ctx = null)
+    internal Task<Session.SessionToken> CreateSessionInternalAsync(PrmCreateSession args)
     {
-        var service = GetSessionService(ref ctx);
+        var service = GetSessionService(args);
-        return service.CreateSessionAsync(expiration, ctx!);
+        return service.CreateSessionAsync(args);
     }    
     #endregion
 
@@ -226,8 +229,9 @@ public class Client : IFrostFSClient
 
     private async void CheckFrostFsVersionSupport(Context? ctx = default)
     {
-        var service = GetNetmapService(ref ctx);
+        var args = new PrmGetNodeInfo(ctx);
-        var localNodeInfo = await service.GetLocalNodeInfoAsync(ctx!);
+        var service = GetNetmapService(args);
+        var localNodeInfo = await service.GetLocalNodeInfoAsync(args);
       
         if (!localNodeInfo.Version.IsSupported(ClientCtx.Version))
         {
@@ -237,24 +241,24 @@ public class Client : IFrostFSClient
         }
     }
 
-    private CallInvoker? SetupEnvironment(ref Context? ctx)
+    private CallInvoker? SetupEnvironment(IContext ctx)
     {
         if (isDisposed)
             throw new Exception("Client is disposed.");
 
-        ctx ??= new Context();
+        ctx.Context ??= new Context();
 
         CallInvoker? callInvoker = null;
-        if (ctx.Interceptors != null && ctx.Interceptors.Count > 0)
+        if (ctx.Context.Interceptors != null && ctx.Context.Interceptors.Count > 0)
         {
-            foreach (var interceptor in ctx.Interceptors)
+            foreach (var interceptor in ctx.Context.Interceptors)
             {
                 callInvoker = AddInvoker(callInvoker, interceptor);
             }
         }
 
-        if (ctx.Callback != null)
+        if (ctx.Context.Callback != null)
-            callInvoker = AddInvoker(callInvoker, new MetricsInterceptor(ctx.Callback));
+            callInvoker = AddInvoker(callInvoker, new MetricsInterceptor(ctx.Context.Callback));
         
         return callInvoker;
 
@@ -269,9 +273,9 @@ public class Client : IFrostFSClient
         }
     }
 
-    private NetmapServiceProvider GetNetmapService(ref Context? ctx)
+    private NetmapServiceProvider GetNetmapService(IContext ctx)
     {
-        var callInvoker = SetupEnvironment(ref ctx);
+        var callInvoker = SetupEnvironment(ctx);
         var client = NetmapServiceClient ?? (callInvoker != null
             ? new NetmapService.NetmapServiceClient(callInvoker)
             : new NetmapService.NetmapServiceClient(ClientCtx.Channel));
@@ -279,9 +283,9 @@ public class Client : IFrostFSClient
         return new NetmapServiceProvider(client, ClientCtx);
     }
 
-    private SessionServiceProvider GetSessionService(ref Context? ctx)
+    private SessionServiceProvider GetSessionService(IContext ctx)
     {
-        var callInvoker = SetupEnvironment(ref ctx);
+        var callInvoker = SetupEnvironment(ctx);
         var client = SessionServiceClient ?? (callInvoker != null
             ? new SessionService.SessionServiceClient(callInvoker)
             : new SessionService.SessionServiceClient(ClientCtx.Channel));
@@ -289,9 +293,9 @@ public class Client : IFrostFSClient
         return new SessionServiceProvider(client, ClientCtx);
     }
 
-    private ContainerServiceProvider GetContainerService(ref Context? ctx)
+    private ContainerServiceProvider GetContainerService(IContext ctx)
     {
-        var callInvoker = SetupEnvironment(ref ctx);        
+        var callInvoker = SetupEnvironment(ctx);        
         var client = ContainerServiceClient ?? (callInvoker != null
             ? new ContainerService.ContainerServiceClient(callInvoker)
             : new ContainerService.ContainerServiceClient(ClientCtx.Channel));
@@ -299,9 +303,9 @@ public class Client : IFrostFSClient
         return new ContainerServiceProvider(client, ClientCtx);
     }
 
-    private ObjectServiceProvider GetObjectService(ref Context? ctx)
+    private ObjectServiceProvider GetObjectService(IContext ctx)
     {
-        var callInvoker = SetupEnvironment(ref ctx);
+        var callInvoker = SetupEnvironment(ctx);
         var client = ObjectServiceClient ?? (callInvoker != null
             ? new ObjectService.ObjectServiceClient(callInvoker)
             : new ObjectService.ObjectServiceClient(ClientCtx.Channel));

src/FrostFS.SDK.ClientV2/Exceptions/ResponseException.cs

@@ -0,0 +1,12 @@
+using System;
+using FrostFS.SDK.ModelsV2;
+
+public class ResponseException : Exception
+{
+    public Status Status { get; set; }
+
+    public ResponseException(Status status) : base()
+    {
+        Status = status;
+    }   
+}

src/FrostFS.SDK.ClientV2/Interfaces/IFrostFSClient.cs

@@ -1,52 +1,50 @@
 using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
-
+using FrostFS.SDK.ClientV2.Parameters;
 using FrostFS.SDK.ModelsV2;
 using FrostFS.SDK.ModelsV2.Netmap;
-
 namespace FrostFS.SDK.ClientV2.Interfaces;
 
 public interface IFrostFSClient : IDisposable
 {
     #region Network
-    Task<NetmapSnapshot> GetNetmapSnapshotAsync(Context? context = default);
+    Task<NetmapSnapshot> GetNetmapSnapshotAsync(PrmGetNetmapSnapshot? args = null);
 
-    Task<NodeInfo> GetNodeInfoAsync(Context? context = default);
+    Task<NodeInfo> GetNodeInfoAsync(PrmGetNodeInfo? args = null);
 
-    Task<NetworkSettings> GetNetworkSettingsAsync(Context? context = default);
+    Task<NetworkSettings> GetNetworkSettingsAsync(PrmGetNetworkSettings? args = null);
     #endregion
 
     #region Session
-    Task<SessionToken> CreateSessionAsync(ulong expiration, Context? context = default);
+    Task<SessionToken> CreateSessionAsync(PrmCreateSession args);
     #endregion
 
     #region Container
-    Task<ModelsV2.Container> GetContainerAsync(ContainerId containerId, Context? context = default);
+    Task<ModelsV2.Container> GetContainerAsync(PrmGetContainer args);
 
-    IAsyncEnumerable<ContainerId> ListContainersAsync(Context? context = default);
+    IAsyncEnumerable<ContainerId> ListContainersAsync(PrmListContainer? args = null);
 
-    Task<ContainerId> CreateContainerAsync(ModelsV2.Container container, Context? context = default);
+    Task<ContainerId> CreateContainerAsync(PrmCreateContainer args);
 
-    Task DeleteContainerAsync(ContainerId containerId, Context? context = default);
+    Task DeleteContainerAsync(PrmDeleteContainer args);
     #endregion
     
     #region Object
-    Task<ObjectHeader> GetObjectHeadAsync(ContainerId containerId, ObjectId objectId, Context? context = default);
+    Task<ObjectHeader> GetObjectHeadAsync(PrmGetObjectHead args);
 
-    Task<FrostFsObject> GetObjectAsync(ContainerId containerId, ObjectId objectId, Context? context = default);
+    Task<FrostFsObject> GetObjectAsync(PrmGetObject args);
 
-    Task<ObjectId> PutObjectAsync(PutObjectParameters putObjectParameters, Context? context = default);
+    Task<ObjectId> PutObjectAsync(PrmPutObject putObjectParameters);
     
-    Task<ObjectId> PutSingleObjectAsync(FrostFsObject obj, Context? context = default);
+    Task<ObjectId> PutSingleObjectAsync(PrmPutSingleObject args);
 
-    Task DeleteObjectAsync(ContainerId containerId, ObjectId objectId, Context? context = default);
+    Task DeleteObjectAsync(PrmDeleteObject args);
 
-    IAsyncEnumerable<ObjectId> SearchObjectsAsync(ContainerId cid, IEnumerable<ObjectFilter> filters, Context? context = default);
+    IAsyncEnumerable<ObjectId> SearchObjectsAsync(PrmSearchObject args);
     #endregion
     
     #region Tools
     ObjectId CalculateObjectId(ObjectHeader header);
     #endregion
 }
-

src/FrostFS.SDK.ClientV2/Mappers/Object/Object.cs

@@ -2,13 +2,13 @@ using FrostFS.SDK.ModelsV2;
 
 namespace FrostFS.SDK.ClientV2.Mappers.GRPC;
 
-public static class ObjectMapper
+internal static class ObjectMapper
 {
-    public static FrostFsObject ToModel(this Object.Object obj)
+    internal static FrostFsObject ToModel(this Object.Object obj)
     {
-        return new FrostFsObject(
+        return new FrostFsObject(obj.Header.ToModel())
-            ObjectId.FromHash(obj.ObjectId.Value.ToByteArray()),
+        {
-            obj.Header.ToModel(),
+            ObjectId = ObjectId.FromHash(obj.ObjectId.Value.ToByteArray())
-            obj.Payload.ToByteArray());
+        };
     }    
 }

src/FrostFS.SDK.ClientV2/Mappers/Session/SessionMapper.cs

@@ -4,7 +4,7 @@ namespace FrostFS.SDK.ClientV2;
 
 public static class SessionMapper
 {
-    internal static byte[] Serialize(this Session.SessionToken token)
+    public static byte[] Serialize(this Session.SessionToken token)
     {
         byte[] bytes = new byte[token.CalculateSize()];
         CodedOutputStream stream = new(bytes);
@@ -13,11 +13,9 @@ public static class SessionMapper
         return bytes;
     }
 
-    internal static Session.SessionToken DeserializeSessionToken(this byte[] bytes)
+    public static Session.SessionToken Deserialize(this Session.SessionToken token, byte[] bytes)
     {
-        Session.SessionToken token = new();
         token.MergeFrom(bytes);
-
         return token;
     }
 }

src/FrostFS.SDK.ClientV2/Parameters/IContext.cs

@@ -0,0 +1,11 @@
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public interface IContext
+{
+    /// <summary>
+    /// The method call can be extended with additional behavior like canceling by timeout or user's request,
+    /// callbacks, interceptors.
+    /// </summary>
+    /// <value>Additional parameters for calling the method</value>
+    Context? Context { get; set; }
+}

src/FrostFS.SDK.ClientV2/Parameters/ISessionToken.cs

@@ -0,0 +1,14 @@
+using FrostFS.SDK.ModelsV2;
+
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public interface ISessionToken
+{
+    /// <summary>
+    /// Object represents token of the FrostFS Object session. A session is opened between any two sides of the
+    /// system, and implements a mechanism for transferring the power of attorney of actions to another network
+    /// member. The session has a limited validity period, and applies to a strictly defined set of operations.
+    /// </summary>
+    /// <value>Instance of the session obtained from the server</value> 
+    SessionToken? SessionToken { get; set; }
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmCreateContainer.cs

@@ -0,0 +1,22 @@
+using System.Collections.Specialized;
+
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public sealed class PrmCreateContainer(ModelsV2.Container container) : IContext
+{
+    public ModelsV2.Container Container { get; set; } = container;
+
+    /// <summary>
+    /// Since the container becomes available with some delay, it needs to poll the container status
+    /// </summary>
+    /// <value>Rules for polling the result</value>
+    public PrmWait? WaitParams { get; set; }
+
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];
+
+    /// <inheritdoc />
+    public Context? Context { get; set; }
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmCreateSession.cs

@@ -0,0 +1,16 @@
+using System.Collections.Specialized;
+
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public sealed class PrmCreateSession(ulong expiration, Context? context = default) : IContext
+{
+    public ulong Expiration { get; set; } = expiration;
+
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];    
+
+    /// <inheritdoc />
+    public Context? Context { get; set; } = context;
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmDeleteContainer.cs

@@ -0,0 +1,23 @@
+using System.Collections.Specialized;
+using FrostFS.SDK.ModelsV2;
+
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public sealed class PrmDeleteContainer(ContainerId containerId, Context? ctx = null) : IContext
+{
+    public ContainerId ContainerId { get; set; } = containerId;
+
+    /// <summary>
+    /// Since the container is removed with some delay, it needs to poll the container status
+    /// </summary>
+    /// <value>Rules for polling the result</value>
+    public PrmWait? WaitParams { get; set; }
+   
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];
+
+    /// <inheritdoc />
+    public Context? Context { get; set; } = ctx;
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmDeleteObject.cs

@@ -0,0 +1,21 @@
+using System.Collections.Specialized;
+using FrostFS.SDK.ModelsV2;
+
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public sealed class PrmDeleteObject(ContainerId containerId, ObjectId objectId) : IContext, ISessionToken
+{
+    public ContainerId ContainerId { get; set; } = containerId;
+    public ObjectId ObjectId { get; set; } = objectId;
+
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];
+
+    /// <inheritdoc />
+    public Context? Context { get; set; }
+
+    /// <inheritdoc />
+    public SessionToken? SessionToken { get; set; }
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmGetContainer.cs

@@ -0,0 +1,17 @@
+using System.Collections.Specialized;
+using FrostFS.SDK.ModelsV2;
+
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public sealed class PrmGetContainer(ContainerId containerId, Context? ctx = null) : IContext
+{
+    public ContainerId ContainerId { get; set; } = containerId;
+
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];
+
+    /// <inheritdoc />
+    public Context? Context { get; set; } = ctx;
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmGetNetmapSnapshot.cs

@@ -0,0 +1,14 @@
+using System.Collections.Specialized;
+
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public sealed class PrmGetNetmapSnapshot(Context? context = default) : IContext
+{
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];
+
+    /// <inheritdoc />
+    public Context? Context { get; set; } = context;
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmGetNetworkSettings.cs

@@ -0,0 +1,14 @@
+using System.Collections.Specialized;
+
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public sealed class PrmGetNetworkSettings(Context? context = default) : IContext
+{
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];
+
+    /// <inheritdoc />
+    public Context? Context { get; set; } = context;
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmGetNodeInfo.cs

@@ -0,0 +1,14 @@
+using System.Collections.Specialized;
+
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public sealed class PrmGetNodeInfo(Context? context = default) : IContext
+{
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];
+
+    /// <inheritdoc />
+    public Context? Context { get; set; } = context;
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmGetObject.cs

@@ -0,0 +1,21 @@
+using System.Collections.Specialized;
+using FrostFS.SDK.ModelsV2;
+
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public sealed class PrmGetObject(ContainerId containerId, ObjectId objectId) : IContext, ISessionToken
+{
+    public ContainerId ContainerId { get; set; } = containerId;
+    public ObjectId ObjectId { get; set; } = objectId;
+
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];
+
+    /// <inheritdoc />
+    public Context? Context { get; set; }
+
+    /// <inheritdoc />
+    public SessionToken? SessionToken { get; set; }
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmGetObjectHead.cs

@@ -0,0 +1,21 @@
+using System.Collections.Specialized;
+using FrostFS.SDK.ModelsV2;
+
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public sealed class PrmGetObjectHead(ContainerId containerId, ObjectId objectId) : IContext, ISessionToken
+{
+    public ContainerId ContainerId { get; set; } = containerId;
+    public ObjectId ObjectId { get; set; } = objectId;
+    
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];
+    
+    /// <inheritdoc />
+    public Context? Context { get; set; }
+
+    /// <inheritdoc />
+    public SessionToken? SessionToken { get; set; }
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmListContainer.cs

@@ -0,0 +1,16 @@
+using System.Collections.Specialized;
+
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public sealed class PrmListContainer() : IContext
+{
+    public string SessionToken { get; set; } = string.Empty;
+
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];
+
+    /// <inheritdoc />
+    public Context? Context { get; set; }
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmPutObject.cs

@@ -0,0 +1,44 @@
+using System.Collections.Specialized;
+using System.IO;
+using FrostFS.SDK.ModelsV2;
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public sealed class PrmPutObject : IContext, ISessionToken
+{
+    /// <summary>
+    /// Need to provide values like <c>ContainerId</c> and <c>ObjectType</c> to create and object.
+    /// Optional parameters ike <c>Attributes</c> can be provided as well.
+    /// </summary>
+    /// <value>Header with required parameters to create an object</value>
+    public ObjectHeader? Header { get; set; }
+
+    /// <summary>
+    /// A stream with source data
+    /// </summary>
+    public Stream? Payload { get; set; }
+
+    /// <summary>
+    /// Object size is limited. In the data exceeds the limit, the object will be splitted.
+    /// If the parameter is <c>true</c>, the client side cut is applied. Otherwise, the data is transferred
+    /// as a stream and will be cut on server side.
+    /// </summary>
+    /// <value>Is client cut is applied</value>
+    public bool ClientCut { get; set; }
+
+    /// <summary>
+    /// Overrides default size of the buffer for stream transferring.
+    /// </summary>
+    /// <value>Size of the buffer</value>
+    public int BufferMaxSize { get; set; }
+
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];
+    
+    /// <inheritdoc />
+    public Context? Context { get; set; }
+
+    /// <inheritdoc />
+    public SessionToken? SessionToken { get; set; }
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmPutSingleObject.cs

@@ -0,0 +1,19 @@
+using System.Collections.Specialized;
+using FrostFS.SDK.ModelsV2;
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public sealed class PrmPutSingleObject(FrostFsObject frostFsObject, Context? context = null) : IContext, ISessionToken
+{
+    public FrostFsObject FrostFsObject { get; set; } = frostFsObject;
+
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];
+
+    /// <inheritdoc />
+    public Context? Context { get; set; } = context;
+
+    /// <inheritdoc />
+    public SessionToken? SessionToken { get; set; }
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmSearchObject.cs

@@ -0,0 +1,26 @@
+using System.Collections.Generic;
+using System.Collections.Specialized;
+using FrostFS.SDK.ModelsV2;
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public sealed class PrmSearchObject(ContainerId containerId, params ObjectFilter[] filters) : IContext, ISessionToken
+{
+    public ContainerId ContainerId { get; set; } = containerId;
+
+    /// <summary>
+    /// Defines the search criteria
+    /// </summary>
+    /// <value>Collection of filters</value>
+    public IEnumerable<ObjectFilter> Filters { get; set; } = filters;
+
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];
+
+    /// <inheritdoc />
+    public Context? Context { get; set; }
+
+    /// <inheritdoc />
+    public SessionToken? SessionToken { get; set; }
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmWait.cs

@@ -0,0 +1,23 @@
+using System;
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public class PrmWait(TimeSpan timeout, TimeSpan pollInterval)
+{
+    private static TimeSpan DefaultTimeout = TimeSpan.FromSeconds(120);
+    private static TimeSpan DefaultPollInterval = TimeSpan.FromSeconds(5);
+
+    public PrmWait(int timeout, int interval) : this(TimeSpan.FromSeconds(timeout), TimeSpan.FromSeconds(interval))
+    {
+    }
+
+    public static PrmWait DefaultParams { get; } = new PrmWait(DefaultTimeout, DefaultPollInterval);
+
+    public TimeSpan Timeout { get; set; } = timeout.Ticks == 0 ? DefaultTimeout : timeout;
+
+    public TimeSpan PollInterval { get; set; } = pollInterval.Ticks == 0 ? DefaultPollInterval : pollInterval;
+
+    public DateTime GetDeadline()
+    {
+        return DateTime.UtcNow.AddTicks(Timeout.Ticks);
+    }
+}

src/FrostFS.SDK.ClientV2/Services/ContainerServiceProvider.cs

@@ -6,6 +6,10 @@ using FrostFS.SDK.ClientV2.Mappers.GRPC;
 using FrostFS.SDK.Cryptography;
 using System.Collections.Generic;
 using FrostFS.SDK.ModelsV2;
+using FrostFS.Refs;
+using System;
+using FrostFS.SDK.ClientV2.Parameters;
+using System.Collections.Specialized;
 
 namespace FrostFS.SDK.ClientV2;
 
@@ -19,28 +23,21 @@ internal class ContainerServiceProvider : ContextAccessor
         containerServiceClient = service;
     }
 
-    internal async Task<ModelsV2.Container> GetContainerAsync(ContainerId cid, Context context)
+    internal async Task<ModelsV2.Container> GetContainerAsync(PrmGetContainer args)
     {
-        var request = new GetRequest
+        GetRequest request = GetContainerRequest(args.ContainerId.ToGrpcMessage(), args.XHeaders);
-        {
-            Body = new GetRequest.Types.Body
-            {
-                ContainerId = cid.ToGrpcMessage()
-            },
-        };
 
-        request.AddMetaHeader();
+        var response = await containerServiceClient.GetAsync(request, null, args.Context!.Deadline, args.Context.CancellationToken);
-        request.Sign(Context.Key);
-
-        var response = await containerServiceClient.GetAsync(request, null, context.Deadline, context.CancellationToken);
 
         Verifier.CheckResponse(response);
 
         return response.Body.Container.ToModel();
     }
 
-    internal async IAsyncEnumerable<ContainerId> ListContainersAsync(Context ctx)
+    internal async IAsyncEnumerable<ContainerId> ListContainersAsync(PrmListContainer args)
     {
+        var ctx = args.Context!;
+
         var request = new ListRequest
         {
             Body = new ListRequest.Types.Body
@@ -49,7 +46,7 @@ internal class ContainerServiceProvider : ContextAccessor
             }
         };
         
-        request.AddMetaHeader();
+        request.AddMetaHeader(args.XHeaders);
         request.Sign(Context.Key);
 
         var response = await containerServiceClient.ListAsync(request, null, ctx.Deadline, ctx.CancellationToken);
@@ -62,9 +59,10 @@ internal class ContainerServiceProvider : ContextAccessor
         }
     }
 
-    internal async Task<ContainerId> CreateContainerAsync(ModelsV2.Container container, Context ctx)
+    internal async Task<ContainerId> CreateContainerAsync(PrmCreateContainer args)
     {
-        var grpcContainer = container.ToGrpcMessage(); 
+        var ctx = args.Context!;
+        var grpcContainer = args.Container.ToGrpcMessage(); 
         grpcContainer.OwnerId = Context.Owner.ToGrpcMessage();
         grpcContainer.Version = Context.Version.ToGrpcMessage();
         
@@ -73,37 +71,113 @@ internal class ContainerServiceProvider : ContextAccessor
             Body = new PutRequest.Types.Body
             {
                 Container = grpcContainer,
-                Signature = Context.Key.SignRFC6979(grpcContainer),
+                Signature = Context.Key.SignRFC6979(grpcContainer)               
             }
         };
-        request.AddMetaHeader();
+        
+        request.AddMetaHeader(args.XHeaders);
         request.Sign(Context.Key);
 
         var response = await containerServiceClient.PutAsync(request, null, ctx.Deadline, ctx.CancellationToken);
       
         Verifier.CheckResponse(response);
 
+        await WaitForContainer(WaitExpects.Exists, response.Body.ContainerId, args.WaitParams, ctx);
+      
         return new ContainerId(Base58.Encode(response.Body.ContainerId.Value.ToByteArray()));
     }
 
-    internal async Task DeleteContainerAsync(ContainerId cid, Context ctx)
+    internal async Task DeleteContainerAsync(PrmDeleteContainer args)
     {
+        var ctx = args.Context!;
         var request = new DeleteRequest
         {
             Body = new DeleteRequest.Types.Body
             {
-                ContainerId = cid.ToGrpcMessage(),
+                ContainerId = args.ContainerId.ToGrpcMessage(),
-                Signature = Context.Key.SignRFC6979(cid.ToGrpcMessage().Value)
+                Signature = Context.Key.SignRFC6979(args.ContainerId.ToGrpcMessage().Value)
             }
         };
     
-        request.AddMetaHeader();
+        request.AddMetaHeader(args.XHeaders);
         request.Sign(Context.Key);
 
         var response = await containerServiceClient.DeleteAsync(request, null, ctx.Deadline, ctx.CancellationToken);
 
+        await WaitForContainer(WaitExpects.Removed, request.Body.ContainerId, args.WaitParams, ctx);
+    
         Verifier.CheckResponse(response);
     }
+
+    private GetRequest GetContainerRequest(ContainerID id, NameValueCollection? xHeaders)
+    {
+        var request = new GetRequest
+        {
+            Body = new GetRequest.Types.Body
+            {
+                ContainerId = id
+            }
+        };
+
+        request.AddMetaHeader(xHeaders);
+        request.Sign(Context.Key);
+
+        return request;
+    }
+
+    private enum WaitExpects
+    { 
+        Exists,
+        Removed
+    }
+
+    private async Task WaitForContainer(WaitExpects expect, ContainerID id, PrmWait? waitParams, Context ctx)
+    {
+        var request = GetContainerRequest(id, null);
+
+        async Task action()
+        {
+            var response = await containerServiceClient.GetAsync(request, null, ctx.Deadline, ctx.CancellationToken);
+            Verifier.CheckResponse(response);
+        }
+
+        await WaitFor(action, expect, waitParams);
+    }
+
+    private static async Task WaitFor(
+        Func<Task> action,
+        WaitExpects expect,
+        PrmWait? waitParams)
+    { 
+        waitParams ??= PrmWait.DefaultParams;
+        var deadLine = waitParams.GetDeadline();
+
+        while (true)
+        {
+            try
+            {
+                await action();
+
+                if (expect == WaitExpects.Exists)
+                    return;
+                
+                await Task.Delay(waitParams.PollInterval);
+            }
+            catch (ResponseException ex)
+            {
+                if (DateTime.UtcNow >= deadLine)
+                    throw new TimeoutException();
+
+                if (ex.Status.Code != ModelsV2.Enums.StatusCode.ContainerNotFound)
+                    throw;
+
+                if (expect == WaitExpects.Removed)
+                    return;
+                
+                await Task.Delay(waitParams.PollInterval);
+            }
+        }
+    }
 }
 
 

src/FrostFS.SDK.ClientV2/Services/NetmapServiceProvider.cs

@@ -7,6 +7,7 @@ using NodeInfo = FrostFS.SDK.ModelsV2.Netmap.NodeInfo;
 
 using FrostFS.SDK.ModelsV2.Netmap;
 using static FrostFS.Netmap.NetworkConfig.Types;
+using FrostFS.SDK.ClientV2.Parameters;
 
 namespace FrostFS.SDK.ClientV2;
 
@@ -39,14 +40,15 @@ internal class NetmapServiceProvider : ContextAccessor
         return settings;
     }
 
-    internal async Task<NodeInfo> GetLocalNodeInfoAsync(Context ctx)
+    internal async Task<NodeInfo> GetLocalNodeInfoAsync(PrmGetNodeInfo args)
     {
+        var ctx = args.Context!;
         var request = new LocalNodeInfoRequest
         {
             Body = new LocalNodeInfoRequest.Types.Body { }
         };
 
-        request.AddMetaHeader();
+        request.AddMetaHeader(args.XHeaders);
         request.Sign(Context.Key);
         
         var response = await netmapServiceClient.LocalNodeInfoAsync(request, null, ctx.Deadline, ctx.CancellationToken);
@@ -58,12 +60,9 @@ internal class NetmapServiceProvider : ContextAccessor
 
     internal async Task<NetworkInfoResponse> GetNetworkInfoAsync(Context ctx)
     {
-        var request = new NetworkInfoRequest
+        var request = new NetworkInfoRequest(); 
-        {
-            Body = new NetworkInfoRequest.Types.Body { }
-        };
 
-        request.AddMetaHeader();
+        request.AddMetaHeader(null);
         request.Sign(Context.Key);
  
         var response = await netmapServiceClient.NetworkInfoAsync(request, null, ctx.Deadline, ctx.CancellationToken);
@@ -73,14 +72,13 @@ internal class NetmapServiceProvider : ContextAccessor
         return response;
     }
 
-    internal async Task<NetmapSnapshot> GetNetmapSnapshotAsync(Context ctx)
+    internal async Task<NetmapSnapshot> GetNetmapSnapshotAsync(PrmGetNetmapSnapshot args)
     {
-        var request = new NetmapSnapshotRequest
+        var ctx = args.Context!;
-        {
-            Body = new NetmapSnapshotRequest.Types.Body { }
-        };
 
-        request.AddMetaHeader();
+        var request = new NetmapSnapshotRequest();
+
+        request.AddMetaHeader(args.XHeaders);
         request.Sign(Context.Key);
  
         var response = await netmapServiceClient.NetmapSnapshotAsync(request, null, ctx.Deadline, ctx.CancellationToken);

src/FrostFS.SDK.ClientV2/Services/ObjectServiceProvider.cs

@@ -12,6 +12,8 @@ using FrostFS.SDK.Cryptography;
 using FrostFS.Session;
 using FrostFS.SDK.ModelsV2;
 using FrostFS.SDK.ClientV2.Extensions;
+using System.Threading;
+using FrostFS.SDK.ClientV2.Parameters;
 
 namespace FrostFS.SDK.ClientV2;
 
@@ -19,21 +21,30 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
 {
     readonly ObjectTools tools = new(ctx);
 
-    internal async Task<ObjectHeader> GetObjectHeadAsync(ContainerId cid, ObjectId oid, Context ctx)
+    internal async Task<ObjectHeader> GetObjectHeadAsync(PrmGetObjectHead args)
     {
+        var ctx = args.Context!;
         var request = new HeadRequest
         {
             Body = new HeadRequest.Types.Body
             {
                 Address = new Address
                 {
-                    ContainerId = cid.ToGrpcMessage(),
+                    ContainerId = args.ContainerId.ToGrpcMessage(),
-                    ObjectId = oid.ToGrpcMessage()
+                    ObjectId = args.ObjectId.ToGrpcMessage()
                 }
             }
         };
 
-        request.AddMetaHeader();
+        var sessionToken = await GetOrCreateSession(args, ctx);
+
+        sessionToken.CreateObjectTokenContext(
+            request.Body.Address,
+            ObjectSessionContext.Types.Verb.Head,
+            Context.Key);
+
+        request.AddMetaHeader(args.XHeaders, sessionToken);
+
         request.Sign(Context.Key);
 
         var response = await client!.HeadAsync(request, null, ctx.Deadline, ctx.CancellationToken);
@@ -43,9 +54,9 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
         return response.Body.Header.Header.ToModel();
     }
 
-    internal async Task<FrostFsObject> GetObjectAsync(ContainerId cid, ObjectId oid, Context ctx)
+    internal async Task<FrostFsObject> GetObjectAsync(PrmGetObject args)
     {
-        var sessionToken = await GetOrCreateSession(ctx);
+        var ctx = args.Context!;
        
         var request = new GetRequest
         {
@@ -53,41 +64,49 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
             {
                 Address = new Address
                 {
-                    ContainerId = cid.ToGrpcMessage(),
+                    ContainerId = args.ContainerId.ToGrpcMessage(),
-                    ObjectId = oid.ToGrpcMessage()
+                    ObjectId = args.ObjectId.ToGrpcMessage()
                 }
             }
         };
 
-        request.AddMetaHeader();
+        var sessionToken = await GetOrCreateSession(args, ctx);
-        request.AddObjectSessionToken(
+
-            sessionToken,
+        sessionToken.CreateObjectTokenContext(
-            cid.ToGrpcMessage(),
+            request.Body.Address,
-            oid.ToGrpcMessage(),
             ObjectSessionContext.Types.Verb.Get,
-            Context.Key
+            Context.Key);
-        );
+
+        request.AddMetaHeader(args.XHeaders, sessionToken);
 
         request.Sign(Context.Key);
 
         return await GetObject(request, ctx);
     }
 
-    internal async Task DeleteObjectAsync(ContainerId cid, ObjectId oid, Context ctx)
+    internal async Task DeleteObjectAsync(PrmDeleteObject args)
     {
+        var ctx = args.Context!;
         var request = new DeleteRequest
         {
             Body = new DeleteRequest.Types.Body
             {
                 Address = new Address
                 {
-                    ContainerId = cid.ToGrpcMessage(),
+                    ContainerId = args.ContainerId.ToGrpcMessage(),
-                    ObjectId = oid.ToGrpcMessage()
+                    ObjectId = args.ObjectId.ToGrpcMessage()
                 }
             }
         };
 
-        request.AddMetaHeader();
+        var sessionToken = await GetOrCreateSession(args, ctx);
+
+        sessionToken.CreateObjectTokenContext(
+            request.Body.Address,
+            ObjectSessionContext.Types.Verb.Delete,
+            Context.Key);
+
+        request.AddMetaHeader(args.XHeaders, sessionToken);
         request.Sign(Context.Key);
 
         var response = await client.DeleteAsync(request, null, ctx.Deadline, ctx.CancellationToken);
@@ -95,24 +114,30 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
         Verifier.CheckResponse(response);
     }
 
-    internal async IAsyncEnumerable<ObjectId> SearchObjectsAsync(
+    internal async IAsyncEnumerable<ObjectId> SearchObjectsAsync(PrmSearchObject args)
-        ContainerId cid, 
-        IEnumerable<ObjectFilter> filters, 
-        Context ctx)
     {
+        var ctx = args.Context!;
         var request = new SearchRequest
         {
             Body = new SearchRequest.Types.Body
             {
-                ContainerId = cid.ToGrpcMessage(),
+                ContainerId = args.ContainerId.ToGrpcMessage(),
                 Filters = { },
                 Version = 1  // TODO: clarify this param
             }
         };
 
-        request.Body.Filters.AddRange(filters.Select(f => f.ToGrpcMessage()));
+        request.Body.Filters.AddRange(args.Filters.Select(f => f.ToGrpcMessage()));
+        
+        var sessionToken = await GetOrCreateSession(args, ctx);
+
+        sessionToken.CreateObjectTokenContext(
+            new Address { ContainerId = request.Body.ContainerId },
+            ObjectSessionContext.Types.Verb.Search,
+            Context.Key);
+
+        request.AddMetaHeader(args.XHeaders, sessionToken);
 
-        request.AddMetaHeader();
         request.Sign(Context.Key);
 
         var objectsIds = SearchObjects(request, ctx);
@@ -123,25 +148,24 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
         }
     }
 
-    internal Task<ObjectId> PutObjectAsync(PutObjectParameters parameters, Context ctx)
+    internal Task<ObjectId> PutObjectAsync(PrmPutObject args)
     {
-        if (parameters.Header == null)
+        if (args.Header == null)
-            throw new ArgumentException("Value cannot be null", nameof(parameters.Header));
+            throw new ArgumentException("Value cannot be null", nameof(args.Header));
         
-        if (parameters.Payload == null)
+        if (args.Payload == null)
-            throw new ArgumentException("Value cannot be null", nameof(parameters.Payload));
+            throw new ArgumentException("Value cannot be null", nameof(args.Payload));
         
-        if (parameters.ClientCut)
+        if (args.ClientCut)
-            return PutClientCutObject(parameters, ctx);
+            return PutClientCutObject(args);
         else 
-            return PutStreamObject(parameters, ctx);
+            return PutStreamObject(args);
     }
    
-    internal async Task<ObjectId> PutSingleObjectAsync(FrostFsObject modelObject, Context ctx)
+    internal async Task<ObjectId> PutSingleObjectAsync(PrmPutSingleObject args)
     {
-        var sessionToken = await GetOrCreateSession(ctx);
+        var ctx = args.Context!;
-    
+        var grpcObject = tools.CreateObject(args.FrostFsObject);
-        var grpcObject = tools.CreateObject(modelObject);
 
         var request = new PutSingleRequest
         {
@@ -151,14 +175,14 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
             }
         };
 
-        request.AddMetaHeader();
+        var sessionToken = await GetOrCreateSession(args, ctx);
-        request.AddObjectSessionToken(
+
-            sessionToken,
+        sessionToken.CreateObjectTokenContext(
-            grpcObject.Header.ContainerId,
+            new Address { ContainerId = grpcObject.Header.ContainerId, ObjectId = grpcObject.ObjectId},
-            grpcObject.ObjectId,
             ObjectSessionContext.Types.Verb.Put,
-            Context.Key
+            Context.Key);
-        );
+
+        request.AddMetaHeader(args.XHeaders, sessionToken);
 
         request.Sign(Context.Key);
 
@@ -169,17 +193,23 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
         return ObjectId.FromHash(grpcObject.ObjectId.Value.ToByteArray());
     }
  
-    private async Task<ObjectId> PutClientCutObject(PutObjectParameters parameters, Context ctx)
+    static readonly AsyncLocal<Session.SessionToken> asyncLocalSession = new ();
+    
+    private async Task<ObjectId> PutClientCutObject(PrmPutObject args)
     {
-        var payloadStream = parameters.Payload!;
+        var ctx = args.Context!;
-        var header = parameters.Header!;
+        var tokenRaw = await GetOrCreateSession(args, ctx);
+        var token = new ModelsV2.SessionToken(tokenRaw.Serialize());
+
+        var payloadStream = args.Payload!;
+        var header = args.Header!;
 
         ObjectId? objectId;
         List<ObjectId> sentObjectIds = [];
         
         FrostFsObject? currentObject;
 
-        var networkSettings = await Context.Client.GetNetworkSettingsAsync(ctx);
+        var networkSettings = await Context.Client.GetNetworkSettingsAsync(new PrmGetNetworkSettings(ctx));
 
         var objectSize = (int)networkSettings.MaxObjectSize;
 
@@ -208,27 +238,30 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
 
             split.Previous = sentObjectIds.LastOrDefault();
 
-            largeObject.AppendBlock(buffer, bytesCount);
+            largeObject.Header.PayloadLength += (ulong)bytesCount;
 
-            currentObject = new FrostFsObject(header.ContainerId, bytesCount < objectSize ? buffer[..bytesCount] : buffer)
+            currentObject = new FrostFsObject(header.ContainerId)
+                .SetPayload(bytesCount < objectSize ? buffer[..bytesCount] : buffer)
                 .SetSplit(split);
 
             if (largeObject.PayloadLength == fullLength)
                 break;
 
-            objectId = await PutSingleObjectAsync(currentObject, ctx);
+            objectId = await PutSingleObjectAsync(new PrmPutSingleObject(currentObject, ctx) { SessionToken = token });
             
             sentObjectIds.Add(objectId!);
         }
 
         if (sentObjectIds.Count != 0)
         {
-            largeObject.AddAttributes(parameters.Header!.Attributes);
+            largeObject.AddAttributes(args.Header!.Attributes);
-            largeObject.CalculateHash();
        
             currentObject.SetParent(largeObject);
 
-            objectId = await PutSingleObjectAsync(currentObject, ctx);
+            var putSingleObjectParams = new PrmPutSingleObject(currentObject, ctx) { SessionToken = token };
+
+            objectId = await PutSingleObjectAsync(putSingleObjectParams);
+
             sentObjectIds.Add(objectId);
 
             var linkObject = new LinkObject(header.ContainerId, split.SplitId, largeObject)
@@ -236,22 +269,21 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
 
             linkObject.Header.Attributes.Clear();
 
-            _ = await PutSingleObjectAsync(linkObject, ctx);
+            _ = await PutSingleObjectAsync(new PrmPutSingleObject(linkObject, ctx){ SessionToken = token });
 
             return tools.CalculateObjectId(largeObject.Header);
         }
 
-        currentObject.AddAttributes(parameters.Header!.Attributes);
+        currentObject.AddAttributes(args.Header!.Attributes);
         
-        return await PutSingleObjectAsync(currentObject, ctx);
+        return await PutSingleObjectAsync(new PrmPutSingleObject(currentObject, ctx));
     }
 
-    private async Task<ObjectId> PutStreamObject(PutObjectParameters parameters, Context ctx)
+    private async Task<ObjectId> PutStreamObject(PrmPutObject args)
     {
-        var payload = parameters.Payload!;
+        var ctx = args.Context!;
-        var header = parameters.Header!;
+        var payload = args.Payload!;
-
+        var header = args.Header!;
-        var sessionToken = await GetOrCreateSession(ctx);
 
         var hdr = header.ToGrpcMessage();
         hdr.OwnerId = Context.Owner.ToGrpcMessage();
@@ -270,20 +302,21 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
             }
         };
 
-        initRequest.AddMetaHeader();
+        var sessionToken = await GetOrCreateSession(args, ctx);
-        initRequest.AddObjectSessionToken(
+
-            sessionToken,
+        sessionToken.CreateObjectTokenContext(
-            hdr.ContainerId,
+            new Address { ContainerId = hdr.ContainerId, ObjectId = oid },
-            oid,
             ObjectSessionContext.Types.Verb.Put,
             Context.Key
         );
 
+        initRequest.AddMetaHeader(args.XHeaders, sessionToken);
+
         initRequest.Sign(Context.Key);
 
         using var stream = await PutObjectInit(initRequest, ctx);
 
-        var bufferSize = parameters.BufferMaxSize > 0 ? parameters.BufferMaxSize : Constants.ObjectChunkSize;
+        var bufferSize = args.BufferMaxSize > 0 ? args.BufferMaxSize : Constants.ObjectChunkSize;
 
         if (payload.CanSeek)
         {
@@ -307,12 +340,13 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
             {
                 Body = new PutRequest.Types.Body
                 {
-                    Chunk = ByteString.CopyFrom(buffer[..bytesCount]),
+                    Chunk = ByteString.CopyFrom(buffer.AsSpan()[..bytesCount]),
                 },
                 VerifyHeader = null
             };
 
             chunkRequest.Sign(Context.Key);
+
             await stream.Write(chunkRequest);
         }
 
@@ -388,13 +422,13 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
         return new SearchReader(call);
     }   
 
-    private async Task<Session.SessionToken> GetOrCreateSession(Context ctx)
+    private async ValueTask<Session.SessionToken> GetOrCreateSession(ISessionToken args, Context ctx)
     {
-        if (string.IsNullOrEmpty(ctx.SessionToken))
+        if (args.SessionToken is null)
         { 
-            return await Context.Client.CreateSessionInternalAsync(uint.MaxValue, ctx);
+            return await Context.Client.CreateSessionInternalAsync(new PrmCreateSession(uint.MaxValue, ctx));
         }
 
-        return Convert.FromBase64String(ctx.SessionToken).DeserializeSessionToken();
+        return new Session.SessionToken().Deserialize(args.SessionToken.Token);
     }
 }

src/FrostFS.SDK.ClientV2/Services/SessionServiceProvider.cs

@@ -1,6 +1,6 @@
 using System.Threading.Tasks;
-
 using FrostFS.SDK.ClientV2.Mappers.GRPC;
+using FrostFS.SDK.ClientV2.Parameters;
 using FrostFS.Session;
 
 namespace FrostFS.SDK.ClientV2;
@@ -15,41 +15,41 @@ internal class SessionServiceProvider : ContextAccessor
         _sessionServiceClient = sessionServiceClient;
     }
 
-    internal async Task<SessionToken> CreateSessionAsync(ulong expiration, Context ctx)
+    internal async Task<SessionToken> CreateSessionAsync(PrmCreateSession args)
     {
         var request = new CreateRequest
         {
             Body = new CreateRequest.Types.Body
             {
                 OwnerId = Context.Owner.ToGrpcMessage(),
-                Expiration = expiration
+                Expiration = args.Expiration
             }
         };
 
-        request.AddMetaHeader();
+        request.AddMetaHeader(args.XHeaders);
         request.Sign(Context.Key);
 
-        var token = await CreateSession(request, ctx);
+        return await CreateSession(request, args.Context!);
-
-        return token;
     }
 
     internal async Task<SessionToken> CreateSession(CreateRequest request, Context ctx)
     {
-        var resp = await _sessionServiceClient!.CreateAsync(request, null, ctx.Deadline, ctx.CancellationToken);
+        var response = await _sessionServiceClient!.CreateAsync(request, null, ctx.Deadline, ctx.CancellationToken);
+        
+        Verifier.CheckResponse(response);
         
         return new SessionToken
         {
             Body = new SessionToken.Types.Body
             {
-                Id = resp.Body.Id,
+                Id = response.Body.Id,
-                SessionKey = resp.Body.SessionKey,
+                SessionKey = response.Body.SessionKey,
                 OwnerId = request.Body.OwnerId,
                 Lifetime = new SessionToken.Types.Body.Types.TokenLifetime
                 {
                     Exp = request.Body.Expiration,
-                    Iat = resp.MetaHeader.Epoch,
+                    Iat = response.MetaHeader.Epoch,
-                    Nbf = resp.MetaHeader.Epoch,
+                    Nbf = response.MetaHeader.Epoch,
                 }
             }
         };

src/FrostFS.SDK.ClientV2/Tools/Object.cs

@@ -13,6 +13,12 @@ public static class ObjectExtensions
         return obj;
     }
 
+    public static FrostFsObject SetPayload(this FrostFsObject obj, byte[] bytes)
+    {
+        obj.Payload = bytes;
+        return obj;
+    }
+
     public static FrostFsObject AddAttribute(this FrostFsObject obj, string key, string value)
     {
         obj.AddAttribute(new ObjectAttribute(key, value));
@@ -45,9 +51,6 @@ public static class ObjectExtensions
 
     public static FrostFsObject CalculateObjectId(this FrostFsObject obj)
     {
-        if (obj.Payload == null)
-            throw new MissingFieldException("Payload cannot be null");
-
         if (obj.Header == null)
             throw new MissingFieldException("Header cannot be null");
 

src/FrostFS.SDK.ClientV2/Tools/RequestConstructor.cs

@@ -1,4 +1,7 @@
+using System.Collections.Specialized;
+using System.Linq;
 using System.Security.Cryptography;
+
 using FrostFS.Refs;
 using FrostFS.SDK.ClientV2.Mappers.GRPC;
 using FrostFS.SDK.ModelsV2;
@@ -9,36 +12,38 @@ namespace FrostFS.SDK.ClientV2;
 
 public static class RequestConstructor
 {
-    public static void AddMetaHeader(this IRequest request, RequestMetaHeader? metaHeader = null)
+    public static void AddMetaHeader(this IRequest request, NameValueCollection? xHeaders, Session.SessionToken? sessionToken = null)
     {
-        if (request.MetaHeader is not null) return;
+        if (request.MetaHeader is not null) 
-        metaHeader ??= MetaHeader.Default().ToGrpcMessage();
+            return;
-        request.MetaHeader = metaHeader;
+
+        request.MetaHeader = MetaHeader.Default().ToGrpcMessage();
+
+        if (sessionToken != null)
+            request.MetaHeader.SessionToken = sessionToken;
+
+        if (xHeaders != null && xHeaders.Count > 0)
+            request.MetaHeader.XHeaders.AddRange(
+                xHeaders.Cast<string>().SelectMany(key => xHeaders.GetValues(key),
+                     (k, v) => new XHeader { Key = k, Value = v }));
     }
 
-    public static void AddObjectSessionToken(
+    public static void CreateObjectTokenContext(this Session.SessionToken sessionToken, 
-        this IRequest request, 
+        Address address,
-        Session.SessionToken sessionToken, 
-        ContainerID cid,
-        ObjectID oid,
         ObjectSessionContext.Types.Verb verb,
         ECDsa key)
     {
-        if (request.MetaHeader.SessionToken is not null)
+        ObjectSessionContext.Types.Target target = new() { Container = address.ContainerId };
-            return;
 
-        request.MetaHeader.SessionToken = sessionToken;
+        if (address.ObjectId != null)
-        var ctx = new ObjectSessionContext
+            target.Objects.Add(address.ObjectId);
+        
+        sessionToken.Body.Object =  new()
         {
-            Target = new ObjectSessionContext.Types.Target
+            Target = target,
-            {
-                Container = cid,
-                Objects = { oid }
-            },
             Verb = verb
         };
 
-        request.MetaHeader.SessionToken.Body.Object = ctx;
+        sessionToken.Signature = key.SignMessagePart(sessionToken.Body);
-        request.MetaHeader.SessionToken.Signature = key.SignMessagePart(request.MetaHeader.SessionToken.Body);
     }
 }

src/FrostFS.SDK.ClientV2/Tools/Verifier.cs

@@ -102,7 +102,7 @@ public static class Verifier
      
         var status = resp.MetaHeader.Status.ToModel();
         if (!status.IsSuccess)
-            throw new ApplicationException(status.ToString());
+            throw new ResponseException(status);
     }
 
     /// <summary>

src/FrostFS.SDK.ModelsV2/Context.cs

@@ -12,8 +12,6 @@ public class Context()
 
     public CancellationToken CancellationToken { get; set; } = default;
     public TimeSpan Timeout { get; set; } = default;
-    public string SessionToken { get; set; } = string.Empty;
-
     public DateTime? Deadline => Timeout.Ticks > 0 ? DateTime.UtcNow.Add(Timeout) : null;
 
     public Action<CallStatistics>? Callback { get; set; }

src/FrostFS.SDK.ModelsV2/FrostFS.SDK.ModelsV2.csproj

@@ -18,4 +18,9 @@
     <ProjectReference Include="..\FrostFS.SDK.Cryptography\FrostFS.SDK.Cryptography.csproj" />
   </ItemGroup>
 
+  <ItemGroup>
+    <AssemblyAttribute Include="System.Runtime.CompilerServices.InternalsVisibleTo">
+      <_Parameter1>FrostFS.SDK.ClientV2</_Parameter1>
+    </AssemblyAttribute>
+  </ItemGroup>
 </Project>

src/FrostFS.SDK.ModelsV2/Object/FrostFsObject.cs

@@ -6,32 +6,56 @@ namespace FrostFS.SDK.ModelsV2;
 
 public class FrostFsObject
 {
-    public FrostFsObject(ObjectId objectId, ObjectHeader header, byte[] payload)
+    /// <summary>
+    /// Creates new instance from <c>ObjectHeader</c>
+    /// </summary>
+    /// <param name="header"></param> <summary>
+    public FrostFsObject(ObjectHeader header)
     {
-        ObjectId = objectId;
-        Payload = payload;
         Header = header;        
     }
 
-    public FrostFsObject(ContainerId container, byte[] payload, ObjectType objectType = ObjectType.Regular)
+    /// <summary>
+    /// Creates new instance with specified parameters
+    /// </summary>
+    /// <param name="container"></param>
+    /// <param name="objectType"></param>
+    public FrostFsObject(ContainerId container, ObjectType objectType = ObjectType.Regular)
     {
-        Payload = payload;
+        Header = new ObjectHeader(containerId: container, type: objectType);        
-        Header = new ObjectHeader(containerId: container, type: objectType, attributes: []);        
     }
     
+    /// <summary>
+    /// Header contains metadata for the object
+    /// </summary>
+    /// <value></value>
     public ObjectHeader Header { get; set; }
     
+    /// <summary>
+    /// The value is calculated internally as a hash of ObjectHeader. Do not use pre-calculated value is the object has been changed.
+    /// </summary>
     public ObjectId? ObjectId
     {
         get; internal set;
     }
 
-    public byte[] Payload { get; set; }
+    /// <summary>
+    /// The size of payload cannot exceed <c>MaxObjectSize</c> value from <c>NetworkSettings</c>
+    /// Used only for PutSingleObject method
+    /// </summary>
+    /// <value>Buffer for output data</value>
+    public byte[] Payload { get; set; } = [];
 
+    /// <summary>
+    /// A payload is obtained via stream reader
+    /// </summary>
+    /// <value>Reader for received data</value>
     public IObjectReader? ObjectReader { get; set; }
     
-    public Signature? Signature { get; set; }   
+    /// <summary>
-
+    /// Applied only for the last Object in chain in case of manual multipart uploading
+    /// </summary>
+    /// <param name="largeObject">Parent for multipart object</param>
     public void SetParent(LargeObject largeObject)
     {
         if (Header?.Split == null)
@@ -41,7 +65,7 @@ public class FrostFsObject
     }
 }
 
-public class LargeObject(ContainerId container) : FrostFsObject(container, [])
+public class LargeObject(ContainerId container) : FrostFsObject(container)
 {
     private readonly SHA256 payloadHash = SHA256.Create();
 
@@ -66,7 +90,7 @@ public class LargeObject(ContainerId container) : FrostFsObject(container, [])
 
 public class LinkObject : FrostFsObject
 {
-    public LinkObject(ContainerId containerId, SplitId splitId, LargeObject largeObject) : base (containerId, [])
+    public LinkObject(ContainerId containerId, SplitId splitId, LargeObject largeObject) : base (containerId)
     {
         Header!.Split = new Split(splitId)
         {

src/FrostFS.SDK.ModelsV2/PutObjectParameters.cs

@@ -1,14 +1 @@
-using System.IO;
-
 namespace FrostFS.SDK.ModelsV2;
-
-public class PutObjectParameters
-{
-    public ObjectHeader? Header { get; set; }
-
-    public Stream? Payload { get; set; }
-
-    public bool ClientCut { get; set; }
-
-    public int BufferMaxSize { get; set; }
-}

src/FrostFS.SDK.ModelsV2/SessionToken.cs

@@ -1,8 +1,11 @@
 namespace FrostFS.SDK.ModelsV2;
 
-public class SessionToken(byte[] sessionKey, byte[] id)
+public class SessionToken
 {
-    public byte[] Id { get; } = id;
+    internal SessionToken(byte[] token)
+    {
+        Token = token;
+    }
 
-    public byte[] SessionKey { get; } = sessionKey;
+    public byte[] Token { get; private set; }
 }

src/FrostFS.SDK.Tests/ContainerTest.cs

@@ -8,10 +8,10 @@ using FrostFS.SDK.ModelsV2.Netmap;
 using FrostFS.SDK.ModelsV2.Enums;
 using Google.Protobuf;
 using FrostFS.SDK.ClientV2.Interfaces;
+using FrostFS.SDK.ClientV2.Parameters;
 
 namespace FrostFS.SDK.Tests;
 
-
 public abstract class ContainerTestsBase
 {
     protected readonly string key = "KwHDAJ66o8FoLBjVbjP2sWBmgBMGjt7Vv4boA7xQrBoAYBE397Aq";
@@ -52,7 +52,9 @@ public class ContainerTest : ContainerTestsBase
     [Fact]
     public async void CreateContainerTest()
     {
-        var result = await GetClient().CreateContainerAsync(new ModelsV2.Container(BasicAcl.PublicRW, Mocker.PlacementPolicy));
+        var param = new PrmCreateContainer(new ModelsV2.Container(BasicAcl.PublicRW, Mocker.PlacementPolicy));
+
+        var result = await GetClient().CreateContainerAsync(param);
 
         Assert.NotNull(result);
         Assert.NotNull(result.Value);
@@ -66,7 +68,7 @@ public class ContainerTest : ContainerTestsBase
 
         Mocker.Acl = BasicAcl.PublicRO;
 
-        var result = await GetClient().GetContainerAsync(cid);
+        var result = await GetClient().GetContainerAsync(new PrmGetContainer(cid));
 
         Assert.NotNull(result);
         Assert.Equal(Mocker.Acl, result.BasicAcl);
@@ -99,9 +101,10 @@ public class ContainerTest : ContainerTestsBase
     [Fact]
     public async void DeleteContainerAsyncTest()
     {
+        Mocker.ReturnContainerRemoved = true;
         var cid = new ContainerId(Base58.Encode(Mocker.ContainerGuid.ToBytes()));
 
-        await GetClient().DeleteContainerAsync(cid);
+        await GetClient().DeleteContainerAsync(new PrmDeleteContainer(cid));
 
         Assert.Single(Mocker.Requests);
 

src/FrostFS.SDK.Tests/Mocks/ContainerServiceMocks/GetContainerMock.cs

@@ -77,6 +77,21 @@ public class ContainerMocker(string key) : ContainerServiceBase(key)
 
         getResponse.VerifyHeader = GetResponseVerificationHeader(getResponse);
 
+        var getNoContainerResponse = new GetResponse
+        {
+            Body = new (),
+            MetaHeader = new ResponseMetaHeader
+            { 
+                Status = new Status.Status 
+                {
+                    Code = 3072,
+                    Message = "container not found"
+                }
+            }
+        };
+
+        getNoContainerResponse.VerifyHeader = GetResponseVerificationHeader(getNoContainerResponse);
+
         mock.Setup(x => x.GetAsync(
             It.IsAny<GetRequest>(),
             It.IsAny<Metadata>(),
@@ -86,6 +101,16 @@ public class ContainerMocker(string key) : ContainerServiceBase(key)
                 {
                     Verifier.CheckRequest(r);
 
+                    if (ReturnContainerRemoved)
+                    {
+                        return new AsyncUnaryCall<GetResponse>(
+                            Task.FromResult(getNoContainerResponse),
+                            Task.FromResult(ResponseMetaData),
+                            () => new Grpc.Core.Status(StatusCode.NotFound, string.Empty),
+                            () => ResponseMetaData,
+                            () => { });    
+                    }
+
                     return new AsyncUnaryCall<GetResponse>(
                         Task.FromResult(getResponse),
                         Task.FromResult(ResponseMetaData),
@@ -154,6 +179,8 @@ public class ContainerMocker(string key) : ContainerServiceBase(key)
         return mock;
     }
 
+    public bool ReturnContainerRemoved { get; set; }
+
     public List<byte[]> ContainerIds { get; set; } = [];
 
     public List<RequestData<DeleteRequest>> Requests { get; set; } = [];

src/FrostFS.SDK.Tests/ObjectTest.cs

@@ -2,6 +2,7 @@ using FrostFS.Refs;
 using FrostFS.SDK.ClientV2;
 using FrostFS.SDK.ClientV2.Interfaces;
 using FrostFS.SDK.ClientV2.Mappers.GRPC;
+using FrostFS.SDK.ClientV2.Parameters;
 using FrostFS.SDK.Cryptography;
 using FrostFS.SDK.ModelsV2;
 using FrostFS.SDK.ModelsV2.Enums;
@@ -76,7 +77,7 @@ public class ObjectTest : ObjectTestsBase
             Timeout = TimeSpan.FromSeconds(2)
         };
 
-        var result = await client.GetObjectAsync(ContainerId, objectId, context);
+        var result = await client.GetObjectAsync(new PrmGetObject(ContainerId, objectId) { Context = context });
 
         Assert.NotNull(result);
 
@@ -97,7 +98,7 @@ public class ObjectTest : ObjectTestsBase
         var bytes = new byte[1024];
         rnd.NextBytes(bytes);
 
-        var param = new PutObjectParameters
+        var param = new PrmPutObject
         {
             Header = Mocker.ObjectHeader,
             Payload = new MemoryStream(bytes),
@@ -132,7 +133,7 @@ public class ObjectTest : ObjectTestsBase
         byte[] bytes = File.ReadAllBytes(@".\..\..\..\TestData\cat.jpg");
         var fileLength = bytes.Length;
 
-        var param = new PutObjectParameters
+        var param = new PrmPutObject
         {
             Header = Mocker.ObjectHeader,
             Payload = new MemoryStream(bytes),
@@ -196,7 +197,7 @@ public class ObjectTest : ObjectTestsBase
     {
         Mocker.ObjectId = new ObjectID { Value = ByteString.CopyFrom(SHA256.HashData(Encoding.UTF8.GetBytes("test"))) }.ToModel();
 
-        await GetClient().DeleteObjectAsync(ContainerId, Mocker.ObjectId);
+        await GetClient().DeleteObjectAsync(new PrmDeleteObject(ContainerId, Mocker.ObjectId));
 
         var request = Mocker.DeleteRequests.FirstOrDefault();
         Assert.NotNull(request);
@@ -209,7 +210,7 @@ public class ObjectTest : ObjectTestsBase
     {
         Mocker.ObjectId = new ObjectID { Value = ByteString.CopyFrom(SHA256.HashData(Encoding.UTF8.GetBytes("test"))) }.ToModel();
 
-        var response = await GetClient().GetObjectHeadAsync(ContainerId, Mocker.ObjectId);
+        var response = await GetClient().GetObjectHeadAsync(new PrmGetObjectHead(ContainerId, Mocker.ObjectId));
 
         var request = Mocker.HeadRequests.FirstOrDefault();
         Assert.NotNull(request);

src/FrostFS.SDK.Tests/SmokeTests.cs

@@ -4,24 +4,30 @@ using FrostFS.SDK.ClientV2.Interfaces;
 using FrostFS.SDK.ModelsV2;
 using FrostFS.SDK.ModelsV2.Enums;
 using FrostFS.SDK.ModelsV2.Netmap;
+using FrostFS.SDK.Cryptography;
+
 using Grpc.Core;
 using Microsoft.Extensions.Options;
 using Grpc.Core.Interceptors;
 using System.Diagnostics;
 
+using static FrostFS.Session.SessionToken.Types.Body;
+using FrostFS.SDK.ClientV2.Parameters;
+
 namespace FrostFS.SDK.SmokeTests;
 
 public class SmokeTests
 {
+    private static PrmWait lightWait = new (100, 1);
     private readonly string key = "KwHDAJ66o8FoLBjVbjP2sWBmgBMGjt7Vv4boA7xQrBoAYBE397Aq";
     private readonly string url = "http://172.29.238.97:8080";
 
     [Fact]
     public async void NetworkMapTest()
     {
-        using var fsClient = Client.GetInstance(GetOptions(this.key, this.url));
+        using var client = Client.GetInstance(GetOptions(this.key, this.url));
 
-        var result = await fsClient.GetNetmapSnapshotAsync();
+        var result = await client.GetNetmapSnapshotAsync();
 
         Assert.True(result.Epoch > 0);
         Assert.Single(result.NodeInfoCollection);
@@ -38,9 +44,9 @@ public class SmokeTests
     [Fact]
     public async void NodeInfoTest()
     {
-        using var fsClient = Client.GetInstance(GetOptions(this.key, this.url));
+        using var client = Client.GetInstance(GetOptions(this.key, this.url));
 
-        var result = await fsClient.GetNodeInfoAsync();
+        var result = await client.GetNodeInfoAsync();
 
         Assert.Equal(2, result.Version.Major);
         Assert.Equal(13, result.Version.Minor);
@@ -51,80 +57,74 @@ public class SmokeTests
     }
 
     [Fact]
-    public async void NodeInfo_Statictics_Test()
+    public async void NodeInfo_Statistics_Test()
     {
         var ctx = new Context
         {
             Callback = (cs) => Console.WriteLine($"{cs.MethodName} took {cs.ElapsedMicroSeconds} microseconds")
         };
 
-        using var fsClient = Client.GetInstance(GetOptions(this.key, this.url));
+        using var client = Client.GetInstance(GetOptions(this.key, this.url));
 
-        var result = await fsClient.GetNodeInfoAsync();       
+        var result = await client.GetNodeInfoAsync();       
     }
 
-    [Theory]
+    [Fact]
-    [InlineData(1)]
+    public async void GetSessionTest()
-    [InlineData(3 * 1024 * 1024)]            // exactly one chunk size - 3MB
-    [InlineData(6 * 1024 * 1024 + 100)]
-    public async void SimpleScenarioTest(int objectSize)
     {
-        using var fsClient = Client.GetInstance(GetOptions(this.key, this.url));
+        using var client = Client.GetInstance(GetOptions(this.key, this.url));
 
-        await Cleanup(fsClient);
+        var token = await client.CreateSessionAsync(new PrmCreateSession(100));
 
-        var containerId = await fsClient.CreateContainerAsync(
+        var session = new Session.SessionToken().Deserialize(token.Token);
-            new ModelsV2.Container(BasicAcl.PublicRW, new PlacementPolicy(true, new Replica(1))),
+ 
-            new Context
+        var ecdsaKey = this.key.LoadWif();
-            {
+        var owner = OwnerId.FromKey(ecdsaKey);
-                Callback = new((CallStatistics cs) => Assert.True(cs.ElapsedMicroSeconds > 0))
+
+        var ownerHash = Base58.Decode(owner.Value);
+       
+        Assert.NotNull(session);
+        Assert.Null(session.Body.Container);
+        Assert.Null(session.Body.Object);
+        Assert.Equal(16, session.Body.Id.Length);
+        Assert.Equal(100ul, session.Body.Lifetime.Exp);
+        Assert.Equal(ownerHash, session.Body.OwnerId.Value);
+        Assert.Equal(33, session.Body.SessionKey.Length);
+        Assert.Equal(ContextOneofCase.None, session.Body.ContextCase);
     }
-        );
 
-        var context = new Context
+    [Fact]
+    public async void CreateObjectWithSessionToken()
     {
-            Timeout = TimeSpan.FromSeconds(10),
+        using var client = Client.GetInstance(GetOptions(this.key, this.url));
-            Callback = new((CallStatistics cs) => Assert.True(cs.ElapsedMicroSeconds > 0))
-        };
        
-        var container = await GetContainer(fsClient, containerId, context);
+        await Cleanup(client);
 
-        Assert.NotNull(container);
+        var token = await client.CreateSessionAsync(new PrmCreateSession(int.MaxValue));
 
-        var bytes = GetRandomBytes(objectSize);
+        var createContainerParam = new PrmCreateContainer(
+            new ModelsV2.Container(BasicAcl.PublicRW, new PlacementPolicy(true, new Replica(1))));
 
-        var param = new PutObjectParameters
+        createContainerParam.XHeaders.Add("key1", "value1");
+
+        var containerId = await client.CreateContainerAsync(createContainerParam);
+
+        var bytes = GetRandomBytes(1024);
+
+        var param = new PrmPutObject
         {
             Header = new ObjectHeader(
                 containerId: containerId,
                 type: ObjectType.Regular,
                 new ObjectAttribute("fileName", "test")),
             Payload = new MemoryStream(bytes),
-            ClientCut = false
+            ClientCut = false,
+            SessionToken = token        
         };
  
-        var objectId = await fsClient.PutObjectAsync(param, new Context
+        var objectId = await client.PutObjectAsync(param);
-        {
-            Callback = new((CallStatistics cs) => Assert.True(cs.ElapsedMicroSeconds > 0))
-        });
 
-        var filter = new ObjectFilter(ObjectMatchType.Equals, "fileName", "test");
+        var @object = await client.GetObjectAsync(new PrmGetObject(containerId, objectId));
-
-        bool hasObject = false;
-        await foreach (var objId in fsClient.SearchObjectsAsync(containerId, [filter]))
-        {
-            hasObject = true;
-
-            var objHeader = await fsClient.GetObjectHeadAsync(containerId, objectId);
-            Assert.Equal((ulong)bytes.Length, objHeader.PayloadLength);
-            Assert.Single(objHeader.Attributes);
-            Assert.Equal("fileName", objHeader.Attributes.First().Key);
-            Assert.Equal("test", objHeader.Attributes.First().Value);
-        }
-
-        Assert.True(hasObject);
-
-        var @object = await fsClient.GetObjectAsync(containerId, objectId!);
 
         var downloadedBytes = new byte[@object.Header.PayloadLength];
         MemoryStream ms = new(downloadedBytes);
@@ -137,11 +137,177 @@ public class SmokeTests
 
         Assert.Equal(MD5.HashData(bytes), MD5.HashData(downloadedBytes));
 
-        await Cleanup(fsClient);
+        await Cleanup(client);
+    }
 
-        await Task.Delay(2000);
+    [Theory]
+    [InlineData(1)]
+    [InlineData(3 * 1024 * 1024)]            // exactly one chunk size - 3MB
+    [InlineData(6 * 1024 * 1024 + 100)]
+    public async void SimpleScenarioTest(int objectSize)
+    {
+        using var client = Client.GetInstance(GetOptions(this.key, this.url));
        
-        await foreach (var _ in fsClient.ListContainersAsync())
+        await Cleanup(client);
+
+        bool callbackInvoked = false;
+        var ctx = new Context
+        {
+            Timeout = TimeSpan.FromSeconds(20),
+            Callback = new((CallStatistics cs) =>
+            {
+                callbackInvoked = true;
+                Assert.True(cs.ElapsedMicroSeconds > 0);
+            })
+        };
+
+        var createContainerParam = new PrmCreateContainer(
+            new ModelsV2.Container(BasicAcl.PublicRW, new PlacementPolicy(true, new Replica(1))))
+        {
+            Context = ctx
+        };
+
+        var containerId = await client.CreateContainerAsync(createContainerParam);
+
+        var container = await client.GetContainerAsync(new PrmGetContainer(containerId,ctx));
+        Assert.NotNull(container);
+        Assert.True(callbackInvoked);
+
+        var bytes = GetRandomBytes(objectSize);
+
+        var param = new PrmPutObject
+        {
+            Header = new ObjectHeader(
+                containerId: containerId,
+                type: ObjectType.Regular,
+                new ObjectAttribute("fileName", "test")),
+            Payload = new MemoryStream(bytes),
+            ClientCut = false,
+            Context = new Context
+            {
+                Callback = new((CallStatistics cs) => Assert.True(cs.ElapsedMicroSeconds > 0))
+            }
+        };
+
+        var objectId = await client.PutObjectAsync(param);
+
+        var filter = new ObjectFilter(ObjectMatchType.Equals, "fileName", "test");
+
+        bool hasObject = false;
+        await foreach (var objId in client.SearchObjectsAsync(new PrmSearchObject(containerId) { Filters = [filter] }))
+        {
+            hasObject = true;
+
+            var objHeader = await client.GetObjectHeadAsync(new PrmGetObjectHead(containerId, objectId));
+            Assert.Equal((ulong)bytes.Length, objHeader.PayloadLength);
+            Assert.Single(objHeader.Attributes);
+            Assert.Equal("fileName", objHeader.Attributes.First().Key);
+            Assert.Equal("test", objHeader.Attributes.First().Value);
+        }
+
+        Assert.True(hasObject);
+
+        var @object = await client.GetObjectAsync(new PrmGetObject(containerId, objectId));
+
+        var downloadedBytes = new byte[@object.Header.PayloadLength];
+        MemoryStream ms = new(downloadedBytes);
+
+        byte[]? chunk = null;
+        while ((chunk = await @object.ObjectReader!.ReadChunk()) != null)
+        {
+            ms.Write(chunk);
+        }
+
+        Assert.Equal(MD5.HashData(bytes), MD5.HashData(downloadedBytes));
+
+        await Cleanup(client);
+
+        await foreach (var _ in client.ListContainersAsync())
+        {
+            Assert.Fail("Containers exist");
+        }
+    }
+
+    [Theory]
+    [InlineData(1)]
+    [InlineData(3 * 1024 * 1024)]            // exactly one chunk size - 3MB
+    [InlineData(6 * 1024 * 1024 + 100)]
+    public async void SimpleScenarioWithSessionTest(int objectSize)
+    {
+        using var client = Client.GetInstance(GetOptions(this.key, this.url));
+
+        var token = await client.CreateSessionAsync(new PrmCreateSession(int.MaxValue));
+
+        await Cleanup(client);
+
+        var ctx = new Context
+        {
+            Timeout = TimeSpan.FromSeconds(20),
+            Callback = new((CallStatistics cs) => Assert.True(cs.ElapsedMicroSeconds > 0))
+        };
+
+        var createContainerParam = new PrmCreateContainer(
+            new ModelsV2.Container(BasicAcl.PublicRW, new PlacementPolicy(true, new Replica(1))))
+        {
+            Context = ctx
+        };
+
+        var containerId = await client.CreateContainerAsync(createContainerParam);
+
+        var container = await client.GetContainerAsync(new PrmGetContainer(containerId,ctx));
+        Assert.NotNull(container);
+
+        var bytes = GetRandomBytes(objectSize);
+
+        var param = new PrmPutObject
+        {
+            Header = new ObjectHeader(
+                containerId: containerId,
+                type: ObjectType.Regular,
+                new ObjectAttribute("fileName", "test")),
+            Payload = new MemoryStream(bytes),
+            ClientCut = false,
+            Context = new Context
+            {
+                Callback = new((CallStatistics cs) => Assert.True(cs.ElapsedMicroSeconds > 0))
+            },
+            SessionToken = token
+        };
+
+        var objectId = await client.PutObjectAsync(param);
+
+        var filter = new ObjectFilter(ObjectMatchType.Equals, "fileName", "test");
+
+        bool hasObject = false;
+        await foreach (var objId in client.SearchObjectsAsync(new PrmSearchObject(containerId) { Filters = [filter], SessionToken = token }))
+        {
+            hasObject = true;
+
+            var objHeader = await client.GetObjectHeadAsync(new PrmGetObjectHead(containerId, objectId) { SessionToken = token });
+            Assert.Equal((ulong)bytes.Length, objHeader.PayloadLength);
+            Assert.Single(objHeader.Attributes);
+            Assert.Equal("fileName", objHeader.Attributes.First().Key);
+            Assert.Equal("test", objHeader.Attributes.First().Value);
+        }
+
+        Assert.True(hasObject);
+
+        var @object = await client.GetObjectAsync(new PrmGetObject(containerId, objectId) { SessionToken = token });
+
+        var downloadedBytes = new byte[@object.Header.PayloadLength];
+        MemoryStream ms = new(downloadedBytes);
+
+        byte[]? chunk = null;
+        while ((chunk = await @object.ObjectReader!.ReadChunk()) != null)
+        {
+            ms.Write(chunk);
+        }
+
+        Assert.Equal(MD5.HashData(bytes), MD5.HashData(downloadedBytes));
+
+        await Cleanup(client);
+
+        await foreach (var _ in client.ListContainersAsync())
         {
             Assert.Fail("Containers exist");
         }
@@ -155,13 +321,16 @@ public class SmokeTests
     [InlineData(2 * 64 * 1024 * 1024 + 256)]
     public async void ClientCutScenarioTest(int objectSize)
     {
-        using var fsClient = Client.GetInstance(GetOptions(this.key, this.url));
+        using var client = Client.GetInstance(GetOptions(this.key, this.url));
 
-        await Cleanup(fsClient);
+        await Cleanup(client);
 
-        var cnt = new ModelsV2.Container(BasicAcl.PublicRW, new PlacementPolicy(true, new Replica(1)));
+        var createContainerParam = new PrmCreateContainer(new ModelsV2.Container(BasicAcl.PublicRW, new PlacementPolicy(true, new Replica(1))))
+        {
+            WaitParams = lightWait 
+        };
 
-        var containerId = await fsClient.CreateContainerAsync(cnt);
+        var containerId = await client.CreateContainerAsync(createContainerParam);
 
         var context = new Context
         {
@@ -169,13 +338,13 @@ public class SmokeTests
             Interceptors = new([new MetricsInterceptor()])
         };
 
-        var container = await GetContainer(fsClient, containerId, context);
+        var container = await client.GetContainerAsync(new PrmGetContainer(containerId, context));
 
         Assert.NotNull(container);
 
         byte[] bytes = GetRandomBytes(objectSize);
 
-        var param = new PutObjectParameters
+        var param = new PrmPutObject
         {
             Header = new ObjectHeader(
                 containerId: containerId,
@@ -185,16 +354,16 @@ public class SmokeTests
             ClientCut = true
         };
 
-        var objectId = await fsClient.PutObjectAsync(param);
+        var objectId = await client.PutObjectAsync(param);
 
         var filter = new ObjectFilter(ObjectMatchType.Equals, "fileName", "test");
 
         bool hasObject = false;
-        await foreach (var objId in fsClient.SearchObjectsAsync(containerId, [filter]))
+        await foreach (var objId in client.SearchObjectsAsync(new PrmSearchObject(containerId, filter)))
         {
             hasObject = true;
 
-            var objHeader = await fsClient.GetObjectHeadAsync(containerId, objectId);
+            var objHeader = await client.GetObjectHeadAsync(new PrmGetObjectHead(containerId, objectId));
             Assert.Equal((ulong)bytes.Length, objHeader.PayloadLength);
             Assert.Single(objHeader.Attributes);
             Assert.Equal("fileName", objHeader.Attributes.First().Key);
@@ -203,7 +372,7 @@ public class SmokeTests
 
         Assert.True(hasObject);
 
-        var @object = await fsClient.GetObjectAsync(containerId, objectId!);
+        var @object = await client.GetObjectAsync(new PrmGetObject(containerId, objectId));
 
         var downloadedBytes = new byte[@object.Header.PayloadLength];
         MemoryStream ms = new(downloadedBytes);
@@ -216,14 +385,23 @@ public class SmokeTests
 
         Assert.Equal(MD5.HashData(bytes), MD5.HashData(downloadedBytes));
 
-        await Cleanup(fsClient);
+        await Cleanup(client);
 
-        await Task.Delay(2000);
+        var deadline = DateTime.UtcNow.Add(TimeSpan.FromSeconds(5));
 
-        await foreach (var _ in fsClient.ListContainersAsync())
+        IAsyncEnumerator<ContainerId>? enumerator = null;
+        do
+        {
+            if (deadline <= DateTime.UtcNow)
             { 
                 Assert.Fail("Containers exist");
+                break;
             }
+
+            enumerator = client.ListContainersAsync().GetAsyncEnumerator();
+            await Task.Delay(500);        
+        }
+        while (await enumerator!.MoveNextAsync());           
     }
 
     private static byte[] GetRandomBytes(int size)
@@ -243,36 +421,16 @@ public class SmokeTests
         });
     }
 
-    static async Task Cleanup(IFrostFSClient fsClient)
+    static async Task Cleanup(IFrostFSClient client)
     {
-        await foreach (var cid in fsClient.ListContainersAsync())
+        await foreach (var cid in client.ListContainersAsync())
         {
-            await fsClient.DeleteContainerAsync(cid);
+            await client.DeleteContainerAsync(new PrmDeleteContainer(cid) { WaitParams = lightWait });
-        }
-    }
-
-    static async Task<ModelsV2.Container> GetContainer(IFrostFSClient fsClient, ContainerId id, Context ctx)
-    {
-        while (true)
-        {
-            try
-            {
-                await Task.Delay(100);
-                return await fsClient.GetContainerAsync(id, ctx);
-            }
-            catch (ApplicationException)
-            {
-                if (DateTime.UtcNow >= ctx.Deadline)
-                    throw new TimeoutException();
-            }
-            catch (RpcException)
-            {
-                throw;
-            }
         }
     }
 }
 
+
 public class MetricsInterceptor() : Interceptor
 {
     public override AsyncUnaryCall<TResponse> AsyncUnaryCall<TRequest, TResponse>(