diff --git a/ctx/go-http-context/context_test.go b/ctx/go-http-context/context_test.go
index 65a1936..9a4abe4 100644
--- a/ctx/go-http-context/context_test.go
+++ b/ctx/go-http-context/context_test.go
@@ -17,7 +17,7 @@ func TestHttpContext_IsValidContext(t *testing.T) {
 	}
 	request, err := http.NewRequest("GET", "https://baidu.com", strings.NewReader(""))
 	if err != nil {
-
+		t.Error(err)
 	}
 	tests := []struct {
 		name   string
@@ -126,7 +126,7 @@ func TestHttpReqStorage_Delete(t *testing.T) {
 			r := HttpReqStorage{
 				source: tt.fields.source,
 			}
-			r.Delete(tt.args.key)
+			r.Delete(ctx.StorageKey(tt.args.key))
 		})
 	}
 }
@@ -151,7 +151,7 @@ func TestHttpReqStorage_Get(t *testing.T) {
 			r := HttpReqStorage{
 				source: tt.fields.source,
 			}
-			if got := r.Get(tt.args.key); !reflect.DeepEqual(got, tt.want) {
+			if got := r.Get(ctx.StorageKey(tt.args.key)); !reflect.DeepEqual(got, tt.want) {
 				t.Errorf("Get() = %v, want %v", got, tt.want)
 			}
 		})
@@ -178,7 +178,7 @@ func TestHttpReqStorage_Set(t *testing.T) {
 			r := HttpReqStorage{
 				source: tt.fields.source,
 			}
-			r.Set(tt.args.key, tt.args.value)
+			r.Set(ctx.StorageKey(tt.args.key), tt.args.value)
 		})
 	}
 }
diff --git a/ctx/go-http-context/request-storage.go b/ctx/go-http-context/request-storage.go
index f45fa29..3fa55fd 100644
--- a/ctx/go-http-context/request-storage.go
+++ b/ctx/go-http-context/request-storage.go
@@ -2,6 +2,7 @@ package go_http_context
 
 import (
 	"context"
+	"github.com/weloe/token-go/ctx"
 	"net/http"
 )
 
@@ -13,18 +14,18 @@ func NewReqStorage(req *http.Request) *HttpReqStorage {
 	return &HttpReqStorage{source: req.Context()}
 }
 
-func (r HttpReqStorage) Source() interface{} {
+func (r *HttpReqStorage) Source() interface{} {
 	return r.source
 }
 
-func (r HttpReqStorage) Get(key string) interface{} {
+func (r *HttpReqStorage) Get(key ctx.StorageKey) interface{} {
 	return r.source.Value(key)
 }
 
-func (r HttpReqStorage) Set(key string, value string) {
+func (r *HttpReqStorage) Set(key ctx.StorageKey, value string) {
 	r.source = context.WithValue(r.source, key, value)
 }
 
-func (r HttpReqStorage) Delete(key string) {
+func (r *HttpReqStorage) Delete(key ctx.StorageKey) {
 	r.source = context.WithValue(r.source, key, nil)
 }
diff --git a/ctx/request_storage.go b/ctx/request_storage.go
index 7f473e5..d5f6ff8 100644
--- a/ctx/request_storage.go
+++ b/ctx/request_storage.go
@@ -1,10 +1,12 @@
 package ctx
 
+type StorageKey string
+
 // ReqStorage
 // Use to set-get-delete data,and it'll be cleaned after request
 type ReqStorage interface {
 	Source() interface{}
-	Get(key string) interface{}
-	Set(key string, value string)
-	Delete(key string)
+	Get(key StorageKey) interface{}
+	Set(key StorageKey, value string)
+	Delete(key StorageKey)
 }