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  1. Apr 2020
    1. Cognito authorizers–Amazon Cognito user pools provide a set of APIs that you can integrate into your application to provide authentication. User pools are intended for mobile or web applications where you handle user registration and sign-in directly in the application.To use an Amazon Cognito user pool with your API, you must first create an authorizer of the COGNITO_USER_POOLS authorizer type, and then configure an API method to use that authorizer. After a user is authenticated against the user pool, they obtain an Open ID Connect token, or OIDC token, formatted in a JSON web token.Users who have signed in to your application will have tokens provided to them by the user pool. Then, your application can use that token to inject information into a header in subsequent API calls that you make against your API Gateway endpoint.The API call succeeds only if the required token is supplied and the supplied token is valid. Otherwise, the client isn't authorized to make the call, because the client did not have credentials that could be authorized.