Django + AWS Cognito: Returned Username (UUID) is not full

[chriswachira]

Expected behaviour

The username retrieved from Cognito should be a full and valid UUID

Actual behaviour

The returned username, which is an autogenerated UUID by Cognito (user pool configured to authenticate with email only), is not full. It misses a few characters at the end.

Example: UUID at Cognito User pool page is 01e5206c-5e37-4548-bf59-cffd34d0d296 but gets returned as 01e5206c-5e37-4548-bf59-cffd34d0, which throws a ValidationError: "'01e5206c-5e37-4548-bf59-cffd34d0' is not a valid UUID." when authenticating with my custom User model.

Any assistance will be highly appreciated