Stripe deauthorize webhook to Rails app - ruby-on-rails

Question

The question goes like this:
I have connected a user with Stripe through my Rails app, and such user is connected via API key.
In Stripe there is an option to deauthorize API keys. I would like to be informed in my app once a user deauthorizes my API key. I know it is possible, or should be possible.
I know I have to manage webhooks in my app, but I am wondering where to set which URL of my app Stripe will call when user deauthorizes my API key, and what data will be sent to my app?

Answer 1

Webhooks are used by Stripe to notify your server of events. There are two types of webhook endpoints you can set up:
"Account" endpoints will receive events that happen on your own account
"Connect" endpoints will receive events that happen on accounts that are connected to yours via Stripe Connect
In a nutshell, you'll configure an URL to your own server (the "endpoint") in your Stripe webhook settings. Whenever an event happens, Stripe will send an event object to that URL.
In the case of Connect endpoints, the object will also have an account attribute with the ID of the account that emitted the event.
To be notified of deauthorizations, you'd need to set up a Connect endpoint and catch account.application.deauthorized events. The data you will receive will look like this:
{
"created": 1326853478,
"livemode": false,
"id": "evt_00000000000000",
"type": "account.application.deauthorized",
"object": "event",
"request": null,
"pending_webhooks": 1,
"api_version": "2016-03-07",
"data": {
"object": {
"id": "ca_00000000000000",
"object": "application",
"name": "Your Application"
}
},
"account": "acct_00000000000000"
}