invoke

Esiur/Core/AsyncChunk.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Esiur.Core
+{
+    // This interface is used to provide return type for templates and support chunk callbacks using IAsyncEnumerable feature of C# 8
+    public interface IAsyncChunk<T> : IAsyncEnumerable<object>
+    {
+
+    }
+}

Esiur/Core/InvocationContext.cs

@@ -0,0 +1,31 @@
+using Esiur.Net.IIP;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Esiur.Core
+{
+    public class InvocationContext
+    {
+        private uint CallbackId;
+
+        public void Chunk(object value)
+        {
+
+        }
+
+        public void Progress(int value) { 
+
+        }
+
+        public DistributedConnection Connection { get; internal set; }
+
+
+        internal InvocationContext(DistributedConnection connection, uint callbackId)
+        {
+            Connection = connection;
+            CallbackId = callbackId;
+
+        }
+    }
+}