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)
}
}
// 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()
}