router: added middlewares

app/router/context.go

@@ -11,6 +11,7 @@ type Context struct {
 	Request *http.Request
 	Writer  http.ResponseWriter
 	PathMap map[string]string
+        StatusCode int
 }
 
 func NewContext(writer http.ResponseWriter, request *http.Request) *Context {
@@ -29,6 +30,7 @@ func (rctx *Context) SetHeader(key, value string) {
 }
 
 func (rctx *Context) SetStatus(httpStatus int) {
+        rctx.StatusCode = httpStatus
 	rctx.Writer.WriteHeader(httpStatus)
 }