src/FrostFS.SDK.ClientV2/Mappers/GRPC/Status.cs

@@ -0,0 +1,19 @@
+using FrostFS.SDK.ModelsV2.Enums;
+
+namespace FrostFS.SDK.ClientV2.Mappers.GRPC;
+
+public static class StatusMapper
+{
+    public static ModelsV2.Status ToModel(this Status.Status status)
+    {
+        if (status is null) return new ModelsV2.Status(StatusCode.Success);
+        var codeName = Enum.GetName(typeof(StatusCode), status.Code);
+        if (codeName is null)
+        {
+            throw new ArgumentException($"Unknown StatusCode. Value: '{status.Code}'.");
+        }
+
+        return new ModelsV2.Status(Enum.Parse<StatusCode>(codeName), status.Message);
+
+    }
+}

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

@@ -18,6 +18,7 @@ public partial class Client
         request.AddMetaHeader();
         request.Sign(_key);
         var response = await _containerServiceClient.GetAsync(request);
+        Verifier.CheckResponse(response);
         return response.Body.Container.ToModel();
     }
 
@@ -33,6 +34,7 @@ public partial class Client
         request.AddMetaHeader();
         request.Sign(_key);
         var response = await _containerServiceClient.ListAsync(request);
+        Verifier.CheckResponse(response);
         foreach (var cid in response.Body.ContainerIds)
         {
             yield return ContainerId.FromHash(cid.Value.ToByteArray());
@@ -55,7 +57,7 @@ public partial class Client
         request.AddMetaHeader();
         request.Sign(_key);
         var response = await _containerServiceClient.PutAsync(request);
-        RequestVerifier.ProcessResponse(response);
+        Verifier.CheckResponse(response);
         return ContainerId.FromHash(response.Body.ContainerId.Value.ToByteArray());
     }
 
@@ -71,6 +73,7 @@ public partial class Client
         };
         request.AddMetaHeader();
         request.Sign(_key);
-        await _containerServiceClient.DeleteAsync(request);
+        var response = await _containerServiceClient.DeleteAsync(request);
+        Verifier.CheckResponse(response);
     }
 }

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

@@ -27,6 +27,7 @@ public partial class Client
         request.AddMetaHeader();
         request.Sign(_key);
         var response = await _objectServiceClient.HeadAsync(request);
+        Verifier.CheckResponse(response);
         return response.Body.Header.Header.ToModel();
     }
 
@@ -55,8 +56,8 @@ public partial class Client
         );
         request.Sign(_key);
 
-        var response = await GetObject(request);
-        return response.ToModel();
+        var obj = await GetObject(request);
+        return obj.ToModel();
     }
 
     private async Task<Object.Object> GetObject(GetRequest request)
@@ -146,6 +147,7 @@ public partial class Client
         }
 
         var response = await stream.Close();
+        Verifier.CheckResponse(response);
         return ObjectId.FromHash(response.Body.ObjectId.Value.ToByteArray());
     }
 
@@ -176,7 +178,8 @@ public partial class Client
         };
         request.AddMetaHeader();
         request.Sign(_key);
-        await _objectServiceClient.DeleteAsync(request);
+        var response = await _objectServiceClient.DeleteAsync(request);
+        Verifier.CheckResponse(response);
     }
 
     public async IAsyncEnumerable<ObjectId> SearchObjectsAsync(ContainerId cid, params ObjectFilter[] filters)
@@ -245,6 +248,7 @@ internal class ObjectReader : IDisposable
         }
 
         var response = Call.ResponseStream.Current;
+        Verifier.CheckResponse(response);
         if (response.Body.ObjectPartCase != GetResponse.Types.Body.ObjectPartOneofCase.Init)
             throw new InvalidOperationException("unexpect message type");
         return new Object.Object
@@ -262,6 +266,7 @@ internal class ObjectReader : IDisposable
         }
 
         var response = Call.ResponseStream.Current;
+        Verifier.CheckResponse(response);
         if (response.Body.ObjectPartCase != GetResponse.Types.Body.ObjectPartOneofCase.Chunk)
             throw new InvalidOperationException("unexpect message type");
         return response.Body.Chunk.ToByteArray();
@@ -311,6 +316,7 @@ internal class SearchReader : IDisposable
         }
 
         var response = Call.ResponseStream.Current;
+        Verifier.CheckResponse(response);
         return response.Body?.IdList.ToList();
     }
 

src/FrostFS.SDK.ClientV2/Verifier.cs

@@ -1,5 +1,6 @@
 using System.Security.Cryptography;
 using FrostFS.Refs;
+using FrostFS.SDK.ClientV2.Mappers.GRPC;
 using FrostFS.SDK.Cryptography;
 using FrostFS.Session;
 using Google.Protobuf;
@@ -9,8 +10,9 @@ using Org.BouncyCastle.Crypto.Parameters;
 using Org.BouncyCastle.Crypto.Signers;
 using Org.BouncyCastle.Math;
 
-namespace FrostFS.SDK.ClientV2 {
-    public static class RequestVerifier
+namespace FrostFS.SDK.ClientV2
+{
+    public static class Verifier
     {
         public const int RFC6979SignatureSize = 64;
 
@@ -72,12 +74,16 @@ namespace FrostFS.SDK.ClientV2 {
         {
             return VerifyMatryoskaLevel(message.GetBody(), message.GetMetaHeader(), message.GetVerificationHeader());
         }
-        
-        public static void ProcessResponse(IResponse resp)
+
+        public static void CheckResponse(IResponse resp)
         {
-            Console.WriteLine(resp.MetaHeader.Status);
             if (!resp.Verify())
                 throw new FormatException($"invalid response, type={resp.GetType()}");
+            var status = resp.MetaHeader.Status.ToModel();
+            if (!status.IsSuccess())
+            {
+                throw new ApplicationException(status.ToString());
+            }
         }
     }
 }

src/FrostFS.SDK.ModelsV2/Enums/StatusCode.cs

@@ -0,0 +1,22 @@
+namespace FrostFS.SDK.ModelsV2.Enums;
+
+public enum StatusCode
+{
+    Success = 0,
+    Internal = 1024,
+    WrongMagicNumber = 1025,
+    SignatureVerificationFailure = 1026,
+    NodeUnderMaintenance = 1027,
+    ObjectAccessDenied = 2048,
+    ObjectNotFound = 2049,
+    ObjectLocked = 2050,
+    LockNotRegularObject = 2051,
+    ObjectAlreadyRemoved = 2052,
+    OutOfRange = 2053,
+    ContainerNotFound = 3072,
+    EAclNotFound = 3073,
+    ContainerAccessDenied = 3074,
+    TokenNotFound = 4096,
+    TokenExpired = 4097,
+    ApeManagerAccessDenied = 5120
+}

src/FrostFS.SDK.ModelsV2/Status.cs

@@ -0,0 +1,25 @@
+using FrostFS.SDK.ModelsV2.Enums;
+
+namespace FrostFS.SDK.ModelsV2;
+
+public class Status
+{
+    public StatusCode Code { get; set; }
+    public string Message { get; set; }
+
+    public Status(StatusCode code, string? message = null)
+    {
+        Code = code;
+        Message = message ?? string.Empty;
+    }
+
+    public bool IsSuccess()
+    {
+        return Code == StatusCode.Success;
+    }
+    
+    public override string ToString()
+    {
+        return $"Response status: {Code}. Message: {Message}.";
+    }
+}