Subscription renewal Explain

First of all, the SDK renews the subscription automatically as long as the access token is still valid. You should implement the callback functions to decide what to do:

// Register Platform Event Listeners
platform.on(platform.events.refreshSuccess, handleRefreshSuccess);
platform.on(platform.events.refreshError, handleRefreshError);
// Register Subscription Event Listeners
subscription.on(subscription.events.renewSuccess, handleSubscriptionRenewSuccess);
subscription.on(subscription.events.renewError, handleSubscriptionRenewError);

What is the tutorial for presence do you refer to?

@Phong Vu sorry for omitting the info, this is the presence tutorial I was referring to https://ringcentral-tutorials.github.io/callrecording-notification-node/?distinctId=16e69c9b43c9e-0f45863320bf05-1d3d6b55-13c680-16e69c9b43dc9b, also I couldn't find anything related to handling the disconnection from ringcentral server, more precisely how can we handle the disconnect if we are disconnected from this

var platform = rcsdk.platform();
        platform.login({
            username:un,
            password:pwd
        }).then()

what I am looking for is to reconnect after we get disconnected and then do we need to re-do the subscription process?

@Phong Vu by disconnection I meant if the app logouts for some reason (internet connectivity issue). but I guess we can just check using the loggedin() and call login() if true. Also can you kindly shed some light on as to why webhooks are preferred over pubnub for app that's meant to run for weeks or months continuously.