diff --git a/packages/core/src/fn.ts b/packages/core/src/fn.ts
index d9ebca3..13d6222 100644
--- a/packages/core/src/fn.ts
+++ b/packages/core/src/fn.ts
@@ -115,8 +115,8 @@ export class Fn extends Plugable {
           supportMethods[0] +
           ' request from client';
       }
-
-      log('beforeOne end');
+      await next();
+      // log('beforeOne end');
     };
   }
 }
diff --git a/packages/core/src/server.ts b/packages/core/src/server.ts
index b3dd8ed..920a7ad 100644
--- a/packages/core/src/server.ts
+++ b/packages/core/src/server.ts
@@ -72,6 +72,9 @@ export class RpcServer {
     this.app = new Koa();
     this.app.use(bodyParser());
     this.use = this.app.use;
+    this.app.use(async (ctx, next) => {
+      await next();
+    });
   }
 
   /**
@@ -180,6 +183,10 @@ export class RpcServer {
 
     this.config.after(this);
 
+    this.app.use(function (ctx, next) {
+      ctx.body = 'default';
+    });
+
     this.app.listen(_port, (err) => {
       if (err) {
         console.error(err);