Prerequisites

Create Cognito User Pool.

API Gateway

Create Cognito Authorizer

Navigate to API Gateway > Select your API > Authorizers > Create New Authorizer

Name Supply a name for your Authorizer
Type Cognito
Cognito User Pool Select your Cognito User Pool
Token Source Authorization
Token Validation

- Click on 'Create'.
- To test your Authorizer, you have to get an AccessToken from your User Pool when signing in.
- Click on 'Test' and paste the token into the Authorization (header) field and click 'Test'.