Hi everyone!

I need some help setting up an endpoint in WhatsApp Flows. I've gone through the Meta tutorials, but I’m still struggling to figure it out.

My goal is to integrate WhatsApp Flows with Google Calendar so that:

In the "date" field: Only the available dates from Google Calendar are shown. In the "time" field: Only the available time slots for the selected date are displayed. I plan to use n8n to create a webhook that will return this data to WhatsApp Flows. However, I’m not a developer, and I’m having trouble understanding how to handle the encryption and decryption process required by WhatsApp Flows to receive the data.

Could someone please explain, in simple terms, how to set up this integration and the endpoint in n8n to work properly with WhatsApp Flows?

Thank you so much!