Example #1
0
func requestCtrMiddleware(next httpctx.Handler) httpctx.Handler {
	return httpctx.HandlerFunc(func(ctx context.Context, w http.ResponseWriter, r *http.Request) {
		counter.Incr(1)
		hitsperminute.Set(counter.Rate())
		next.ServeHTTP(ctx, w, r)
	})
}
Example #2
0
func userIPMiddleware(next httpctx.Handler) httpctx.Handler {
	return httpctx.HandlerFunc(func(ctx context.Context, w http.ResponseWriter, r *http.Request) {
		if userIP, ok := userip.FromRequest(r); ok == nil {
			ctx = userip.NewContext(ctx, userIP)
		}
		next.ServeHTTP(ctx, w, r)
	})
}
Example #3
0
func requestIDMiddleware(next httpctx.Handler) httpctx.Handler {
	return httpctx.HandlerFunc(func(ctx context.Context, w http.ResponseWriter, r *http.Request) {
		if reqID, ok := requestid.FromRequest(r); ok == nil {
			ctx = requestid.NewContext(ctx, reqID)
		}
		next.ServeHTTP(ctx, w, r)
	})
}
Example #4
0
func main() {
	counter = ratecounter.NewRateCounter(1 * time.Minute)

	port := os.Getenv("PORT")

	if port == "" {
		log.Fatal("$PORT must be set")
	}

	var handler httpctx.Handler
	handler = httpctx.HandlerFunc(requestHandler)
	handler = userIPMiddleware(handler)
	handler = requestIDMiddleware(handler)
	handler = requestCtrMiddleware(handler)

	ctx := context.Background()
	svc := &Server{ctx, handler}

	http.HandleFunc("/", svc.ServeHTTP)
	log.Fatal(http.ListenAndServe(":"+port, nil))
}