diff --git a/src/ts/@overflow/commons/api/Service.ts b/src/ts/@overflow/commons/api/Service.ts
index d06bb16..984e514 100644
--- a/src/ts/@overflow/commons/api/Service.ts
+++ b/src/ts/@overflow/commons/api/Service.ts
@@ -2,7 +2,7 @@ import inject from '../context/decorator/inject';
 import WebSocketRPC from '../websocket/WebSocketRPC';
 
 abstract class Service {
-  @inject()
+  @inject({qualifier: '11111', required: false})
   private webSocketRPC: WebSocketRPC;
   private name: string;
   protected constructor(name: string) {
@@ -10,11 +10,10 @@ abstract class Service {
 
   }
 
-  protected send<T>(methodName: string, ...params: any[]): Promise<T> {
-    return this.webSocketRPC.Call(methodName, params)
-      .then(body => {
-        const o: T = JSON.parse(body);
-        return o;
+  protected send<T>(methodName: string, args: any): Promise<T> {
+    return this.webSocketRPC.Call(`${this.name}.${methodName}`, args)
+      .then(result => {
+        return result;
       })
       .catch(e => {
         throw e;
diff --git a/src/ts/@overflow/commons/context/decorator/inject.ts b/src/ts/@overflow/commons/context/decorator/inject.ts
index a86515a..4bf8fbd 100644
--- a/src/ts/@overflow/commons/context/decorator/inject.ts
+++ b/src/ts/@overflow/commons/context/decorator/inject.ts
@@ -3,15 +3,18 @@ import * as METADATA from '../constants';
 export interface Config {
   qualifier?: string;
   required?: boolean;
+  type?: any;
 }
 
 
-const inject = (config?: Config) => {
+const inject = (config: Config = {}) => {
   return (target: Object, propertyKey: string | symbol, parameterIndex?: number): void => {
     if (typeof parameterIndex === 'number') {
       // tagParameter(target, targetKey, index, metadata);
     } else {
       let meta: Map<string | symbol, Config>;
+      let propertyType = Reflect.getMetadata('design:type', target, propertyKey);
+
       if (Reflect.hasOwnMetadata(METADATA.INJECT_TAG, target)) {
         meta = Reflect.getMetadata(METADATA.INJECT_TAG, target);
       } else {
@@ -21,7 +24,16 @@ const inject = (config?: Config) => {
       if (meta.has(propertyKey)) {
         throw new Error('Cannot apply @injectable decorator multiple times.');
       }
+      if (config.type === undefined) {
+        config.type = propertyType.prototype;
+      }
       meta.set(propertyKey, config);
+      if (delete target[propertyKey]) {
+        // Create new property with getter and setter
+        Object.defineProperty(target, propertyKey, {
+          writable: true,
+        });
+      }
     }
   };
 };
diff --git a/src/ts/@overflow/commons/context/index.ts b/src/ts/@overflow/commons/context/index.ts
index 08c744f..c0b1958 100644
--- a/src/ts/@overflow/commons/context/index.ts
+++ b/src/ts/@overflow/commons/context/index.ts
@@ -1,30 +1,55 @@
 import * as METADATA from './constants';
+import { Config as InjectConfig } from './decorator/inject';
+
+export type ClassConstructor<T> = {new(...args: any[]): T};
 
 class AppContext {
   private static context: AppContext = null;
-  private instanceMap: Map<string, Function>;
+  private instanceMap: Map<symbol, Function>;
 
   private constructor() {
     this.instanceMap = new Map();
   }
 
   public put(instance: any, name?: string): void {
+    let aaa = Object.getPrototypeOf(instance);
     if (typeof name !== 'string') {
-      if (instance instanceof Function) {
-        name = (<Function>instance).name;
+      if (instance.constructor !== undefined) {
+        name = instance.constructor.name;
       }
     }
-    this.instanceMap.set(name, instance);
+    this.instanceMap.set(aaa, instance);
   }
 
-  public static getService<T>(clazz: {new(...args: any[]): T}): T {
-    let s = Object.getPrototypeOf(clazz.prototype);
-    let types1 = Reflect.getMetadata(METADATA.INJECT_TAG, s);
-    let types2 = Reflect.getMetadata(METADATA.INJECT_TAG, clazz);
+  private setValue(type: any, target: object): void {
+    if (type.constructor === Object) {
+      console.log('Object');
+      return;
+    }
 
-    let i = new clazz();
+    let meta: Map<string | symbol, InjectConfig> = Reflect.getMetadata(METADATA.INJECT_TAG, type);
+    if (undefined !== meta) {
+      let property: any;
+      meta.forEach((config, key, map) => {
+        property = Object.getOwnPropertyDescriptor(type, key);
 
-    return i;
+        let dddd = this.instanceMap.get(config.type);
+        target[key] = dddd;
+        console.log(dddd);
+      });
+    }
+
+
+    this.setValue(Object.getPrototypeOf(type), target);
+  }
+
+  public static getService<T>(type: ClassConstructor<T>, ...args: any[]): T {
+    let clazz = type.prototype;
+    let instance = Object.create(clazz);
+    instance.constructor.apply(instance, args);
+
+    AppContext.getContext().setValue(clazz, instance);
+    return instance;
   }
 
   public static get<T>(): T {
diff --git a/src/ts/@overflow/commons/websocket/WebSocketRPC.ts b/src/ts/@overflow/commons/websocket/WebSocketRPC.ts
index c13ebe4..7ccaecd 100644
--- a/src/ts/@overflow/commons/websocket/WebSocketRPC.ts
+++ b/src/ts/@overflow/commons/websocket/WebSocketRPC.ts
@@ -58,13 +58,13 @@ export default class WebSocketRPC {
     this.requestQueue = new Map();
   }
 
-  public Call(method: string, params: any[]): Promise<string> {
-    return new Promise<string>((resolve, reject) => {
+  public Call(method: string, args: any): Promise<any> {
+    return new Promise<any>((resolve, reject) => {
       const requestID = this.getRequestID();
       let request = new ProtocolRequest<ID_TYPE>(RPCProtocol, requestID);
-      let req = new RPCRequest(method, params);
-      request.setBody(req.toJSON());
-      this.conn.send(request.toJSON());
+      let req = new RPCRequest(method, args);
+      request.setBody(req);
+      this.conn.send(JSON.stringify(request));
       this.requestQueue.set(requestID, {resolve: resolve, reject: reject});
     });
   }
@@ -111,8 +111,8 @@ export default class WebSocketRPC {
     };
 
     this.conn.onmessage = (ev: MessageEvent): any => {
-      let response: ProtocolResponse<ID_TYPE> = JSON.parse(ev.data);
-      let res: RPCResponse = JSON.parse(response.getBody());
+      let response = new ProtocolResponse<ID_TYPE>(JSON.parse(ev.data));
+      let res = new RPCResponse(response.getBody());
       const requestID = response.getID();
       const error = response.getError();
       const result = res.getResult();
diff --git a/src/ts/@overflow/commons/websocket/protocol/ProtocolHeader.ts b/src/ts/@overflow/commons/websocket/protocol/ProtocolHeader.ts
index 059cd2b..1a4f7d8 100644
--- a/src/ts/@overflow/commons/websocket/protocol/ProtocolHeader.ts
+++ b/src/ts/@overflow/commons/websocket/protocol/ProtocolHeader.ts
@@ -1,11 +1,12 @@
 export class ProtocolHeader<ID> {
-  private readonly protocol: string;
-  private readonly id: ID;
-  private body: string;
+  protected readonly protocol: string;
+  protected readonly id: ID;
+  protected body: any;
 
-  public constructor(protocol: string, id: ID) {
+  public constructor(protocol: string, id: ID, body?: any) {
     this.protocol = protocol;
     this.id = id;
+    this.body = body;
   }
 
   /**
@@ -25,20 +26,14 @@ export class ProtocolHeader<ID> {
   /**
    * setID
    */
-  public setBody(body: string): void {
+  public setBody(body: any): void {
     this.body = body;
   }
   /**
    * getID
    */
-  public getBody(): string {
+  public getBody(): any {
     return this.body;
   }
 
-  /**
-   * toJSON
-   */
-  public toJSON(): string {
-    return JSON.stringify(this);
-  }
 }
diff --git a/src/ts/@overflow/commons/websocket/protocol/ProtocolNotification.ts b/src/ts/@overflow/commons/websocket/protocol/ProtocolNotification.ts
index 619025b..57e5787 100644
--- a/src/ts/@overflow/commons/websocket/protocol/ProtocolNotification.ts
+++ b/src/ts/@overflow/commons/websocket/protocol/ProtocolNotification.ts
@@ -26,10 +26,4 @@ export class ProtocolNotification {
     return this.body;
   }
 
-  /**
-   * toJSON
-   */
-  public toJSON(): string {
-    return JSON.stringify(this);
-  }
 }
diff --git a/src/ts/@overflow/commons/websocket/protocol/ProtocolResponse.ts b/src/ts/@overflow/commons/websocket/protocol/ProtocolResponse.ts
index 551ee5e..1a6253f 100644
--- a/src/ts/@overflow/commons/websocket/protocol/ProtocolResponse.ts
+++ b/src/ts/@overflow/commons/websocket/protocol/ProtocolResponse.ts
@@ -2,10 +2,11 @@ import { ProtocolHeader } from './ProtocolHeader';
 import { ProtocolError } from './ProtocolError';
 
 export class ProtocolResponse<ID> extends ProtocolHeader<ID> {
-  private error: ProtocolError;
+  protected error: ProtocolError;
 
-  public constructor(protocol: string, id: ID) {
-    super(protocol, id);
+  public constructor(response: ProtocolResponse<ID>) {
+    super(response.protocol, response.id, response.body);
+    this.error = response.error;
   }
 
   /**
diff --git a/src/ts/@overflow/commons/websocket/protocol/ProtocolSub.ts b/src/ts/@overflow/commons/websocket/protocol/ProtocolSub.ts
index 9149392..7d6d925 100644
--- a/src/ts/@overflow/commons/websocket/protocol/ProtocolSub.ts
+++ b/src/ts/@overflow/commons/websocket/protocol/ProtocolSub.ts
@@ -1,6 +1,2 @@
 export abstract class ProtocolSub {
-  /**
-   * toJSON
-   */
-  public abstract toJSON(): string;
 }
diff --git a/src/ts/@overflow/commons/websocket/protocol/rpc/RPCRequest.ts b/src/ts/@overflow/commons/websocket/protocol/rpc/RPCRequest.ts
index 72866a2..08e01c6 100644
--- a/src/ts/@overflow/commons/websocket/protocol/rpc/RPCRequest.ts
+++ b/src/ts/@overflow/commons/websocket/protocol/rpc/RPCRequest.ts
@@ -2,9 +2,9 @@ import { ProtocolSub } from '../ProtocolSub';
 
 export class RPCRequest extends ProtocolSub {
   private readonly method: string;
-  private readonly params: any[];
+  private readonly params: any;
 
-  public constructor(method: string, params: any[]) {
+  public constructor(method: string, params: any) {
     super();
     this.method = method;
     this.params = params;
@@ -20,14 +20,7 @@ export class RPCRequest extends ProtocolSub {
   /**
    * getParams
    */
-  public getParams(): any[] {
+  public getParams(): any {
     return this.params;
   }
-
-  /**
-   * toJSON
-   */
-  public toJSON(): string {
-    return JSON.stringify(this);
-  }
 }
diff --git a/src/ts/@overflow/commons/websocket/protocol/rpc/RPCResponse.ts b/src/ts/@overflow/commons/websocket/protocol/rpc/RPCResponse.ts
index af7ebcc..4b1179b 100644
--- a/src/ts/@overflow/commons/websocket/protocol/rpc/RPCResponse.ts
+++ b/src/ts/@overflow/commons/websocket/protocol/rpc/RPCResponse.ts
@@ -14,11 +14,4 @@ export class RPCResponse extends ProtocolSub {
   public getResult(): any {
     return this.result;
   }
-
-  /**
-   * toJSON
-   */
-  public toJSON(): string {
-    return JSON.stringify(this);
-  }
 }
diff --git a/src/ts/@overflow/member/api/service/MemberService.ts b/src/ts/@overflow/member/api/service/MemberService.ts
index b460da0..b1257ea 100644
--- a/src/ts/@overflow/member/api/service/MemberService.ts
+++ b/src/ts/@overflow/member/api/service/MemberService.ts
@@ -1,6 +1,7 @@
 import Service from '@overflow/commons/api/Service';
 import Member from '../model/Member';
 import injectable from '@overflow/commons/context/decorator/injectable';
+import inject from '@overflow/commons/context/decorator/inject';
 
 
 
diff --git a/src/ts/@overflow/member/redux/saga/signIn.ts b/src/ts/@overflow/member/redux/saga/signIn.ts
index b1fa1c2..30dd57b 100644
--- a/src/ts/@overflow/member/redux/saga/signIn.ts
+++ b/src/ts/@overflow/member/redux/saga/signIn.ts
@@ -18,8 +18,9 @@ function* signin(action: Action<SigninPayload>): SagaIterator {
     //   type: types.SENDING_REQUEST,
     //   payload: {sendingRequest: true},
     // });
+    let memberService = AppContext.getService(MemberService);
 
-    const member = yield call(AppContext.getService(MemberService).signin, signinId, signinPw);
+    const member = yield call({context: memberService, fn: memberService.signin}, signinId, signinPw);
 
     // if (responseBody.token === undefined) {
     //   throw new Error(MESSAGES.UNABLE_TO_FIND_TOKEN_IN_LOGIN_RESPONSE);