Creating external event in Google Calendar using form in your Adalo App

Ok, so here’s what I want to happen:

(1) User submits form in Adalo
(2) Saves to both the internal collections, and also creates a new event in external collection -obviously in this case that would be Google Calendar

I have been able to connect the Google Calendar via API and pull data that I need into the app. But, I have not been able to figure out how to submit/create a new event. Disclaimer: I have already been successful doing this with Zapier, but I feel as though this is not needed, right Tell me if im wrong and the ONLY way I can do this is by paying Zapier.

Any leads?

I have this from Google Calendar and this feels really important