Update xhttp middleware

Author: onanying

README.md

@@ -22,7 +22,7 @@ go get github.com/mix-go/xhttp
 | xhttp.WithTimeout(timeout time.Duration) RequestOption                              | Set configuration item.           |
 | xhttp.WithDebugFunc(f DebugFunc) RequestOption                                      | Set configuration item.           |
 | xhttp.WithRetry(f RetryIfFunc, opts ...retry.Option) RequestOption                  | Set configuration item.           |
-| xhttp.WithMiddlewares(middlewares ...Middleware) RequestOption                      | Set configuration item.           |
+| xhttp.WithMiddleware(middlewares ...Middleware) RequestOption                       | Set configuration item.           |
 | xhttp.BuildJSON(v interface{}) Body                                                 | Generate json string.             |
 | xhttp.BuildQuery(m map[string]string) Body                                          | Generate urlencoded query string. |
 | xhttp.Shutdown(ctx context.Context)                                                 | Do shutdown.                      |
@@ -112,7 +112,7 @@ logicMiddleware := func(next xhttp.HandlerFunc) xhttp.HandlerFunc {
         return resp, err
     }
 }
-resp, err := xhttp.NewRequest("GET", "https://github.com/", xhttp.WithMiddlewares(logicMiddleware))
+resp, err := xhttp.NewRequest("GET", "https://github.com/", xhttp.WithMiddleware(logicMiddleware))
 ```
 
 ## Shutdown

client_test.go

@@ -138,7 +138,7 @@ func TestMiddlewares(t *testing.T) {
 			return resp, err
 		}
 	}
-	resp, err := xhttp.NewRequest("GET", "https://github.com/", xhttp.WithMiddlewares(logicMiddleware))
+	resp, err := xhttp.NewRequest("GET", "https://github.com/", xhttp.WithMiddleware(logicMiddleware))
 
 	a.Equal(resp.StatusCode, 200)
 	a.Nil(err)
@@ -160,14 +160,14 @@ func TestShutdown(t *testing.T) {
 			return resp, err
 		}
 	}
-	_, err := xhttp.NewRequest("GET", "https://github.com/", xhttp.WithMiddlewares(logicMiddleware))
+	_, err := xhttp.NewRequest("GET", "https://github.com/", xhttp.WithMiddleware(logicMiddleware))
 	a.Nil(err)
 	wg := sync.WaitGroup{}
 	wg.Add(3)
 	for i := 0; i < 3; i++ {
 		go func(i int, wg *sync.WaitGroup) {
 			defer wg.Done()
-			_, err := xhttp.NewRequest("GET", "https://github.com/", xhttp.WithMiddlewares(logicMiddleware))
+			_, err := xhttp.NewRequest("GET", "https://github.com/", xhttp.WithMiddleware(logicMiddleware))
 			a.Equal(err, xhttp.ErrShutdown)
 		}(i, &wg)
 	}

options.go

@@ -102,7 +102,7 @@ func WithRetry(f RetryIfFunc, opts ...retry.Option) RequestOption {
 	}}
 }
 
-func WithMiddlewares(middlewares ...Middleware) RequestOption {
+func WithMiddleware(middlewares ...Middleware) RequestOption {
 	return &funcRequestOption{func(o *RequestOptions) {
 		o.Middlewares = append(o.Middlewares, middlewares...)
 	}}