Add user authentication support backed by Amazon Cognito, as an alternative to the current static token approach. * JWT / Cognito User Pool token validation * Integration with existing API key authentication flow REF: * https://docs.aws.amazon.com/cognito/latest/developerguide/amazon-cognito-user-pools-using-tokens-verifying-a-jwt.html
Add user authentication support backed by Amazon Cognito, as an alternative to the current static token approach.
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