AWS Cognito Error: 'identityPoolId' failed to satisfy constraint
Solution 1:
You are using a Cognito user pool id as the identity pool id. They are two different things. Identity pool ids are of format us-east-1:XXXX-XXXXXX-XXXX-XXXX.
To get an identity pool id you should use the "Manage Federated Identities" parts of the Cognito console not the "Manage User Pools" section. Hope this helps.