大猩猩Mux正则表达式用于范围和预定义选项之间的数字

Question

My route looks like this

max := viper.GetInt("channels")

lights_router.Path("/{channel}/{action}").
    Methods("OPTIONS","GET").
    Handler( util.Adapt(SerialHandler(router), util.EnableCORS()))

Channels have to be between 1 and max and action has to be either false or true.

Answer 1

func ValidetaChannel() Adapter {
    return func(h http.Handler) http.Handler {
        return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
            channel, err := strconv.Atoi(mux.Vars(r)["channel"])
            if err != nil {
                http.Error(w, http.StatusText(400), 400)
                return
            }
            if channel >= 1 && channel <= viper.GetInt("channels") {
                h.ServeHTTP(w, r)
                return
            }
            http.Error(w, http.StatusText(400), 400)

        })
    }
}


func ValidetaAction() Adapter {
    return func(h http.Handler) http.Handler {
        return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
            if mux.Vars(r)["action"] == "true" || mux.Vars(r)["action"] == "false" {
                h.ServeHTTP(w, r)
                return
            }
            http.Error(w, http.StatusText(400), 400)
        })
    }
}