diff --git a/include/fc/json_rpc_connection.hpp b/include/fc/json_rpc_connection.hpp
index 8bebdfb..34a93ca 100644
--- a/include/fc/json_rpc_connection.hpp
+++ b/include/fc/json_rpc_connection.hpp
@@ -25,7 +25,6 @@ namespace fc {  namespace json {
     template<typename T>
     struct pending_result_impl : virtual public promise<T>, virtual public pending_result {   
        virtual void handle_result( const fc::value& s ) {
-             slog( "cast %s", typeid(T).name() );
           this->set_value( value_cast<T>(s) );
        }
       protected:
diff --git a/include/fc/ptr.hpp b/include/fc/ptr.hpp
index 3af839c..92f0165 100644
--- a/include/fc/ptr.hpp
+++ b/include/fc/ptr.hpp
@@ -6,15 +6,9 @@ namespace fc {
   
   namespace detail {
     struct identity_member { 
-        // TODO: enumerate all method patterns
-        template<typename R, typename C, typename P>
-        static fc::function<R> functor( P&& p, R (C::*mem_func)() ) {
-          return [=](){ return (p->*mem_func)(); };
-        }
-        
-        template<typename R, typename C, typename A1, typename P>
-        static fc::function<R,A1> functor( P&& p, R (C::*mem_func)(A1) ) {
-          return fc::function<R,A1>([=](A1 a1){ return (p->*mem_func)(a1); });
+        template<typename R, typename C, typename P, typename... Args>
+        static fc::function<R,Args...> functor( P&& p, R (C::*mem_func)(Args...) ) {
+          return fc::function<R,Args...>([=](Args... args){ return (p->*mem_func)(args...); });
         }
     };
 
diff --git a/src/json_rpc_connection.cpp b/src/json_rpc_connection.cpp
index 2854473..34bcdb7 100644
--- a/src/json_rpc_connection.cpp
+++ b/src/json_rpc_connection.cpp
@@ -140,6 +140,7 @@ namespace fc { namespace json {
 
   void rpc_connection::invoke( detail::pending_result::ptr&& p, 
                                const fc::string& m, value&& param ) {
+    p->id = my->_next_req_id;
     if( my->_pr_tail ) {
       my->_pr_tail->next = p;
       my->_pr_tail = my->_pr_tail->next;
diff --git a/tests/json_rpc_test.cpp b/tests/json_rpc_test.cpp
index 72a4fff..f54522c 100644
--- a/tests/json_rpc_test.cpp
+++ b/tests/json_rpc_test.cpp
@@ -10,7 +10,7 @@ struct test {
   int sub(int x){ return x-1; }
   int sub1(int x){ return 3; }
   int sub2(float x){ return 3; }
-  int sub3(double x){ return 3; }
+  int sub3(double x, int y){ return x-y; }
   int sub4(uint16_t x){ return 3; }
   int sub5(char x){ return 3; }
   int sub6(uint64_t x){ return 3; }
@@ -37,6 +37,7 @@ int main( int argc, char** argv ) {
 
       fc::json::rpc_client<test> rpcc( con );
       slog( "5+1=%d", rpcc->add(5).wait() );
+      slog( "sub3 4-5=%d", rpcc->sub3(4,5).wait() );
   }
   slog( "exit serv" );
   /*