Firebase webapp connected to a compute engine VM

[gancarani]

Hi all,

this is my current setup:

1. a flutter application hosted and deployed on firebase in eu (multiple regions in European Union)
2. a compute engine VM deployed in asia-northeast1-b
3. on the VM machine I have a websocket server running
4. from my flutter application on firebase I want to connect to my websocket server on the compute engine machine and consume the messages

In my local environment everything is working fine, but I cannot sort out the connection between the flutter app on firebase and the VM on compute engine.

Is there any guide to achieve this scenarios?