Steps to build RESTful API and integrate Websockets in Golang: Install dependencies, write API processing function, create WebSocket upgrade function, use Gorilla Mux to register routing, start HTTP server, create a simple chat room in actual combat: define message structure, write API processing function processing WebSocket connection
How to build a RESTful API in Golang and integrate Websockets
To build a RESTful API and integrate Websockets in Golang, You can follow the following steps:
1. Install dependencies
go get github.com/gorilla/mux go get github.com/gorilla/websocket
2. Write API processing function
func apiHandler(w http.ResponseWriter, r *http.Request) { // 处理 API 请求 }
3. Create WebSocket upgrade function
func wsUpgrader(w http.ResponseWriter, r *http.Request) (*websocket.Conn, error) { // 升级 HTTP 请求到 WebSocket 连接 }
4. Use Gorilla Mux to register routing
router := mux.NewRouter() router.HandleFunc("/api", apiHandler) router.HandleFunc("/ws", wsUpgrader)
5. Start HTTP server
http.ListenAndServe(":8080", router)
Practical case: Create a simple chat room
1. Define the message structure
type Message struct { Username string Message string }
2. Write API handling function
func chatApiHandler(w http.ResponseWriter, r *http.Request) { // 发送消息到 Websockets 连接 w.Header().Set("Content-Type", "application/json") json.NewEncoder(w).Encode(Message{Username: "Server", Message: "Hello!"}) }
3. Handling WebSocket connections
func wsHandler(ws *websocket.Conn) { // 循环读取和发送消息 for { var msg Message if err := ws.ReadJSON(&msg); err != nil { break } fmt.Println("Received message:", msg.Message) if err := ws.WriteJSON(Message{Username: "Server", Message: "Echo: " + msg.Message}); err != nil { break } } }
By following these steps, you can easily build RESTful APIs and integrate Websockets using Golang for Your application provides real-time communication capabilities.
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