Generic function to handle http request

[pranavkv]

Below is the generic function to handle http request

func Process[Req GoLibRequest, Resp GoLibResponse](w http.ResponseWriter, r *http.Request, processFunc func(request GoLibRequest, response *GoLibResponse) error) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {

	request := GoLibRequest{MsgId: GetMsgID()}
	response := GoLibResponse{MsgId: GetMsgID()}

	if err := json.NewDecoder(r.Body).Decode(&request); err != nil {
		Logger.Errorf("Decoding body failed: %v", err)
		resErr := NewHTTPError(err, 400, "Bad request : invalid JSON.", "EGN002")
		response.Error = resErr
		json.NewEncoder(w).Encode(response)
		return
	}

	resErr := processFunc(request, &response)
	if resErr != nil {
		Logger.Errorf("Unable to process request: %v", resErr)
		response.Error = resErr
		w.WriteHeader(http.StatusInternalServerError)
	} else {
		w.WriteHeader(200)
	}

	w.Header().Set("Content-Type", "application/json")
	if err := json.NewEncoder(w).Encode(response); err != nil {
		log.Printf("Encoding response failed: %v", err)
	}
}

}

how do i pass this function to mux router properly .

currently passing as below

sm := http.NewServeMux()
sm.HandleFunc(“/login”, lib.Process(ProcessLogin))

s := &http.Server{
	Addr:         ":9091",
	Handler:      sm,
	IdleTimeout:  120 * time.Second,
	ReadTimeout:  1 * time.Second,
	WriteTimeout: 1 * time.Second,
}

go func() {
	err := s.ListenAndServe()
	if err != nil {
		lib.Logger.Error(err)
	}
}()

@skillian