diff --git a/mROA.Test/UnitTest1.cs b/mROA.Test/UnitTest1.cs
index 3d8bac4..4736608 100644
--- a/mROA.Test/UnitTest1.cs
+++ b/mROA.Test/UnitTest1.cs
@@ -1,5 +1,6 @@
 using System.Diagnostics;
 using System.Reflection;
+using System.Text;
 using System.Text.Json;
 using mROA.Implementation;
 using Newtonsoft.Json;
@@ -43,7 +44,7 @@ public class Tests
                                               "RequestTypeId": 0,
                                               "CommandId": 2
                                             }
-                                            """);
+                                            """u8.ToArray());
         Assert.Pass(_interactionModule.OutputBuffer.Last());
     }
 
@@ -56,7 +57,7 @@ public class Tests
                                               "RequestTypeId": 0,
                                               "CommandId": 3
                                             }
-                                            """);
+                                            """u8.ToArray());
         while (_interactionModule.OutputBuffer.Count != 2) ;
 
         Assert.Pass(_interactionModule.OutputBuffer.Last());
@@ -87,21 +88,21 @@ public class Tests
                                             {
                                               "CommandId": 4
                                             }
-                                            """);
+                                            """u8.ToArray());
         var response =
             JsonSerializer.Deserialize<TransmittedSharedObject<IContextRepository>>(
                 JsonSerializer.Deserialize<FinalCommandExecution>(_interactionModule.OutputBuffer.Last())
                     ?.Result.ToString()
             );
 
-        _interactionModule.PassCommand(132,
-            JsonSerializer.Serialize(new JsonCallRequest { CommandId = 2, ObjectId = response.ContextId }));
+        _interactionModule.PassCommand(132, Encoding.UTF8.GetBytes(
+            JsonSerializer.Serialize(new JsonCallRequest { CommandId = 2, ObjectId = response.ContextId })));
 
         var firstFull = JsonDocument.Parse(_interactionModule.OutputBuffer.Last()).RootElement.GetProperty("Result")
             .GetInt32();
 
-        _interactionModule.PassCommand(132,
-            JsonSerializer.Serialize(new JsonCallRequest { CommandId = 4, ObjectId = response.ContextId }));
+        _interactionModule.PassCommand(132, Encoding.UTF8.GetBytes(
+            JsonSerializer.Serialize(new JsonCallRequest { CommandId = 4, ObjectId = response.ContextId })));
 
         response =
             JsonSerializer.Deserialize<TransmittedSharedObject<IContextRepository>>(
@@ -109,10 +110,10 @@ public class Tests
                     ?.Result.ToString()
             );
 
-        _interactionModule.PassCommand(132,
-            JsonSerializer.Serialize(new JsonCallRequest { CommandId = 2, ObjectId = response.ContextId }));
-        _interactionModule.PassCommand(132,
-            JsonSerializer.Serialize(new JsonCallRequest { CommandId = 2, ObjectId = response.ContextId }));
+        _interactionModule.PassCommand(132, Encoding.UTF8.GetBytes(
+            JsonSerializer.Serialize(new JsonCallRequest { CommandId = 2, ObjectId = response.ContextId })));
+        _interactionModule.PassCommand(132, Encoding.UTF8.GetBytes(
+            JsonSerializer.Serialize(new JsonCallRequest { CommandId = 2, ObjectId = response.ContextId })));
 
         var secondFull = JsonDocument.Parse(_interactionModule.OutputBuffer.Last()).RootElement.GetProperty("Result")
             .GetInt32();
@@ -127,14 +128,14 @@ public class Tests
                                             {
                                               "CommandId": 6
                                             }
-                                            """);
+                                            """u8.ToArray());
         var response =
             JsonSerializer.Deserialize<TransmittedSharedObject<ITestParameter>>(
                 JsonSerializer.Deserialize<FinalCommandExecution>(_interactionModule.OutputBuffer.Last())
                     ?.Result.ToString()
             );
         var x = response.ContextId;
-        _interactionModule.PassCommand(132,
+        _interactionModule.PassCommand(132,Encoding.UTF8.GetBytes(
             JsonSerializer.Serialize(new JsonCallRequest
             {
                 CommandId = 5,
@@ -143,7 +144,7 @@ public class Tests
                     A = 10,
                     LinkedObject = new TransmittedSharedObject<ITestParameter> { ContextId = x }
                 }
-            }));
+            })));
         
         var finalResponse = JsonDocument.Parse(_interactionModule.OutputBuffer.Last()).RootElement.GetProperty("Result").GetInt32();
         
diff --git a/mROA/Abstract/IInteractionModule.cs b/mROA/Abstract/IInteractionModule.cs
index 5658e6d..ef4d0d6 100644
--- a/mROA/Abstract/IInteractionModule.cs
+++ b/mROA/Abstract/IInteractionModule.cs
@@ -2,6 +2,11 @@ namespace mROA;
 
 public interface IInteractionModule
 {
-    void SetMessageHandler(Action<int, string> handler);
+    void SetMessageHandler(Action<int, byte[]> handler);
     void SendTo(int clientId, byte[] message);
+    public interface IFrontendInteractionModule
+    {
+        public byte[] ReceiveMessage();
+        public void PostMessage(byte[] message);
+    }
 }
\ No newline at end of file
diff --git a/mROA/Abstract/ISerialisationModule.cs b/mROA/Abstract/ISerialisationModule.cs
index a7d0934..b246944 100644
--- a/mROA/Abstract/ISerialisationModule.cs
+++ b/mROA/Abstract/ISerialisationModule.cs
@@ -4,13 +4,12 @@ namespace mROA;
 
 public interface ISerialisationModule
 {
-    void HandleIncomingRequest(int clientId, string command);
+    void HandleIncomingRequest(int clientId, byte[] command);
     void PostResponse(ICommandExecution call);
     void SetExecuteModule(IExecuteModule executeModule);
     public interface IFrontendSerialisationModule
     {
-        void HandlePostedResponse(string response);
+        ICommandExecution GetNextCommandExecution(Guid requestId);
         void PostCallRequest(ICallRequest callRequest);
-        Task<T> GetCommandExecutionResult<T>(Guid callRequestId, CancellationToken cancellationToken);
     }
 }
\ No newline at end of file
diff --git a/mROA/Implementation/JsonFrontendSerialisationModule.cs b/mROA/Implementation/JsonFrontendSerialisationModule.cs
index a8f7a10..8e56948 100644
--- a/mROA/Implementation/JsonFrontendSerialisationModule.cs
+++ b/mROA/Implementation/JsonFrontendSerialisationModule.cs
@@ -4,19 +4,13 @@ namespace mROA.Implementation;
 
 public class JsonFrontendSerialisationModule : ISerialisationModule.IFrontendSerialisationModule
 {
-    public void HandlePostedResponse(string response)
+    public ICommandExecution GetNextCommandExecution(Guid requestId)
     {
-        
+        return null;
     }
-    
-    
+
     public void PostCallRequest(ICallRequest callRequest)
     {
         
     }
-
-    public async Task<T> GetCommandExecutionResult<T>(Guid callRequestId, CancellationToken cancellationToken)
-    {
-        throw new NotImplementedException();
-    }
 }
\ No newline at end of file
diff --git a/mROA/Implementation/JsonSerialisationModule.cs b/mROA/Implementation/JsonSerialisationModule.cs
index 20c9907..eacaba1 100644
--- a/mROA/Implementation/JsonSerialisationModule.cs
+++ b/mROA/Implementation/JsonSerialisationModule.cs
@@ -18,7 +18,7 @@ public class JsonSerialisationModule : ISerialisationModule
 
     public void SetExecuteModule(IExecuteModule executeModule) => _executeModule = executeModule;
     
-    public void HandleIncomingRequest(int clientId, string command)
+    public void HandleIncomingRequest(int clientId, byte[] command)
     {
         JsonCallRequest request = JsonSerializer.Deserialize<JsonCallRequest>(command);
         request.ClientId = clientId;
diff --git a/mROA/Implementation/Test/MockSerializationModule.cs b/mROA/Implementation/Test/MockSerializationModule.cs
index f5544fe..3f4635c 100644
--- a/mROA/Implementation/Test/MockSerializationModule.cs
+++ b/mROA/Implementation/Test/MockSerializationModule.cs
@@ -2,7 +2,7 @@
 
 public class MockSerializationModule : ISerialisationModule
 {
-    public void HandleIncomingRequest(int clientId, string command)
+    public void HandleIncomingRequest(int clientId, byte[] command)
     {
         
     }
diff --git a/mROA/Implementation/Test/ProgramlyInteractionChanel.cs b/mROA/Implementation/Test/ProgramlyInteractionChanel.cs
index b2116e4..d08a814 100644
--- a/mROA/Implementation/Test/ProgramlyInteractionChanel.cs
+++ b/mROA/Implementation/Test/ProgramlyInteractionChanel.cs
@@ -2,12 +2,12 @@
 
 public class ProgramlyInteractionChanel : IInteractionModule
 {
-    public void PassCommand(int clientId, string message) => _handler(clientId, message);
-    private Action<int, string> _handler;
+    public void PassCommand(int clientId, byte[] message) => _handler(clientId, message);
+    private Action<int, byte[]> _handler;
     
     public List<string> OutputBuffer = new List<string>();
     
-    public void SetMessageHandler(Action<int, string> handler)
+    public void SetMessageHandler(Action<int, byte[]> handler)
     {
         _handler = handler;
     }