AWS Cognito/Amplify - have new user sign ups be automatically add to a user group

Question

I am using AWS Amplify library to sign up and perform Auth for an AppSync project. This uses Cognito. However, when a new user signs up via Amplify/Cognito, the new user

Answer 1

Cognito won't know which group a newly signed-up user needs to be a part of. You have to programmatically (or manually) assign the user to a specific group. Once your code places the user into a specific group, the JWT ID token will contain a list of all of the relevant groups/IAM roles that this users is a part of.

More info on groups here.