Example #1
0
func initRedis(app *App) {
	if app.config.RedisUrl == "" {
		return
	}

	redisURL, err := url.Parse(app.config.RedisUrl)

	if err != nil {
		log.Panic(app.ctx, err)
	}

	app.redis = &redis.Pool{
		MaxIdle:      3,
		IdleTimeout:  240 * time.Second,
		Dial:         dialRedis(redisURL),
		TestOnBorrow: pingRedis,
	}

	// test the connection
	c := app.redis.Get()
	defer c.Close()

	_, err = c.Do("PING")

	if err != nil {
		log.Panic(app.ctx, err)
	}
}
Example #2
0
// Serve starts the horizon system, binding it to a socket, setting up
// the shutdown signals and starting the appropriate db-streaming pumps.
func (a *App) Serve() {

	a.web.router.Compile()
	http.Handle("/", a.web.router)

	listenStr := fmt.Sprintf(":%d", a.config.Port)
	listener := bind.Socket(listenStr)
	log.Infof(a.ctx, "Starting horizon on %s", listener.Addr())

	graceful.HandleSignals()
	bind.Ready()
	graceful.PreHook(func() {
		log.Info(a.ctx, "received signal, gracefully stopping")
		a.Cancel()
	})
	graceful.PostHook(func() {
		log.Info(a.ctx, "stopped")
	})

	if a.config.Autopump {
		sse.SetPump(a.ctx, sse.AutoPump)
	} else {
		sse.SetPump(a.ctx, db.NewLedgerClosePump(a.ctx, a.historyDb))
	}

	err := graceful.Serve(listener, http.DefaultServeMux)

	if err != nil {
		log.Panic(a.ctx, err)
	}

	graceful.Wait()
}