samplemiddleware.go

func pass(args string) func(http.HandlerFunc) http.HandlerFunc {
    return func(f http.HandlerFunc) http.HandlerFunc {
        // Define the http.HandlerFunc
        return func(w http.ResponseWriter, r *http.Request) {
            //split args and check if the request as this method
            acceptedMethods := strings.Split(args, "|")
            for _, v := range acceptedMethods {
                if r.Method == v {
                    // Call the next middleware in chain
                    f(w, r)
                    return
                }
            }
            http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
            return
        }
    }
}