diff --git a/glide.yaml b/glide.yaml
new file mode 100644
index 0000000..58c773d
--- /dev/null
+++ b/glide.yaml
@@ -0,0 +1,13 @@
+package: git.loafle.net/overflow/gateway_rpc
+import:
+- package: git.loafle.net/commons/rpc-go
+  subpackages:
+  - protocol/json
+- package: git.loafle.net/commons/server-go
+  subpackages:
+  - socket/web
+- package: git.loafle.net/overflow/gateway
+  subpackages:
+  - external/grpc
+- package: github.com/valyala/fasthttp
+  version: ^20160617.0.0
diff --git a/servlet/rpc-servlet.go b/servlet/rpc-servlet.go
index f45f5a4..8602087 100644
--- a/servlet/rpc-servlet.go
+++ b/servlet/rpc-servlet.go
@@ -1,13 +1,16 @@
 package servlet
 
 import (
-	cssw "git.loafle.net/commons/server-go/socket/web"
+	"context"
+
+	logging "git.loafle.net/commons/logging-go"
+	crp "git.loafle.net/commons/rpc-go/protocol"
 	crpj "git.loafle.net/commons/rpc-go/protocol/json"
 	"git.loafle.net/commons/server-go"
-
-	"github.com/valyala/fasthttp"
+	cssw "git.loafle.net/commons/server-go/socket/web"
+	og "git.loafle.net/overflow/gateway"
 	ogeg "git.loafle.net/overflow/gateway/external/grpc"
-	"context"
+	"github.com/valyala/fasthttp"
 )
 
 type RPCServlet interface {
@@ -18,7 +21,7 @@ type RPCServlets struct {
 	cssw.Servlets
 }
 
-func init()  {
+func init() {
 	// member RSA file read
 }
 
@@ -31,18 +34,26 @@ func (s *RPCServlets) Handshake(servletCtx server.ServletCtx, ctx *fasthttp.Requ
 	return nil, nil
 }
 
-func (s *RPCServlets) Handle(
-	servletCtx server.ServletCtx,
-	stopChan <-chan struct{},
-	doneChan chan<- struct{},
-	readChan <-chan []byte,
-	writeChan chan<- []byte ) {
+func (s *RPCServlets) Handle(servletCtx server.ServletCtx,
+	stopChan <-chan struct{}, doneChan chan<- struct{},
+	readChan <-chan []byte, writeChan chan<- []byte) {
 	defer func() {
 		doneChan <- struct{}{}
 	}()
 
 	sc := crpj.NewServerCodec()
 
+	servletCtx.SetAttribute(og.SessionWriteChanKey, writeChan)
+
+	var (
+		src       crp.ServerRequestCodec
+		method    string
+		params    []string
+		grpcCtx   context.Context
+		grpcReply string
+		replyBuff []byte
+		err       error
+	)
 
 	for {
 		select {
@@ -51,21 +62,28 @@ func (s *RPCServlets) Handle(
 				return
 			}
 			// grpc exec method call
-			src, _ := sc.NewRequest(msg)
+			src, err = sc.NewRequest(msg)
+			if nil != err {
+				logging.Logger().Errore(err)
+				break
+			}
 
-			m := src.Method()
-			p,_ := src.Params()
-			grpcCTX := context.Background()
+			method = src.Method()
+			params, err = src.Params()
+			if nil != err {
+				logging.Logger().Errore(err)
+				break
+			}
 
-			r, err := ogeg.Exec(grpcCTX,m, p...)
+			grpcCtx = context.Background()
+			grpcReply, err = ogeg.Exec(grpcCTX, m, p...)
+			replyBuff, err = src.NewResponseWithString(grpcReply, err)
 
-			b, err := src.NewResponse(r, err)
-
-			writeChan <- b
+			writeChan <- replyBuff
 		case <-stopChan:
 			return
 		}
 
 	}
 
-}
\ No newline at end of file
+}