RESTful API를 구축하고 Golang을 사용하여 웹소켓을 통합하는 방법은 무엇입니까?

go get github.com/gorilla/mux
go get github.com/gorilla/websocket

func apiHandler(w http.ResponseWriter, r *http.Request) {
    // 处理 API 请求
}

func wsUpgrader(w http.ResponseWriter, r *http.Request) (*websocket.Conn, error) {
    // 升级 HTTP 请求到 WebSocket 连接
}

router := mux.NewRouter()
router.HandleFunc("/api", apiHandler)
router.HandleFunc("/ws", wsUpgrader)

http.ListenAndServe(":8080", router)

type Message struct {
    Username string
    Message  string
}