Examples

Use an Auth Pre Signup trigger to allow or deny sign-ups based on email domains

Use an Auth Post Authentication trigger to automatically add new users to a group

Use an Auth Post Authentication trigger to automatically a user profile record

Use an Auth Pre token generation trigger to override ID token claims

Validate user attributes with an Auth trigger

Use an Auth custom message authentication trigger to customize the message sent to users

Leverage Google reCAPTCHA to protect against spam

Create a Lambda event source for a Amazon Kinesis Data Stream to trigger Lambda functions in response to real-time events

Create a Lambda event source using Amazon DynamoDB Streams to trigger a Lambda function in response to real-time events.

Use a trigger to confirm uploading files

Leverage Custom Auth with and without SRP, allowing for a series of challenge and response cycles that can be customized to meet different requirements during sign in.