Hubspot calendar embed - Webhook to confirm booking?

[EBrand]

We are considering migrating from Calendly to Hubspot meeting embedding in our apps onboarding flow. However, in order to do so, we need Hubspot API to support two things:

1. Automatically passing in data to calendar form fields
2. Some sort of event/webhook that sends confirmation of booking to us so that we can automatically send users to the next step of our onboarding flow

For the latter point, here's documentation on how Calendly does it: https://developer.calendly.com/trigger-automations-with-other-apps-when-invitees-schedule-or-cancel-...

I wasn't able to locate these capabilities in the Hubspot API docs - does anyone know if Hubspots API supports this?

[AWord1 · Accepted solution]

The Hubspot API does support #2. The trick is to listen for contact.created and contact.updated events and check the request body for the "sourceId". It's set to "sales-meetings-booking" for booked meetings. I was able to use that to build a little tool to send custom confirmation emails (via Sendgrid).

[RZhukov]

I also need to integrate the meeting into the app for https://lomray.com/. Haven't found a solution yet? HS developers won't answer...(