AWS API 网关令牌测试响应代码：401

Question

Thanks if anyone can help me. I am building a cognito user pool + API gateway solution in AWS. Now the configuration is done but the token is not working. Here is how I tested,

I used API endpoint

https://mydomain/login?response_type=token&client_id=5gjg8956um7bf2h5c3fuav1o46&redirect_uri=https://www.example.com

to get a token, here is the result.

https://www.example.com/#id_token=eyJraWQiOiJiTTcrSVlMUHBHVTBQK3FnTmkrMWxSeGFyNjRrb3hxYUluemptZllMTmZ3PSIsImFsZyI6IlJTMjU2In0.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.lkTA49l_EQpWnhiLnKdbBR1anA0H4psFwEEBJuWgwQ6Iwg_GVZgvl3Sf0_p8OF-_vgRvcGbg1uI7nJdcTBs5EAcLV75AKfglQT7UjWXQtv10D7lh86sLNmIuLWRcJDV-8iCNSlHeFqJnBcskEH4yTXJI03s7Ikp9ZVZiNDW-wZzt6fW3n1SEtfN57sV4xvknByJBqswwUv07vL3URGk60MLMfLex16vVijBVHOhvMwWByEOpvWFMH3jY0NrGjx9ty5U4I-Bq1OvwJlR5SGPz2OjiPMdXnGM8eA-E8AUHjY8VtFIW4Ec6d74axlw7qMIayUHL8UaNMKKHSDM_giIpMg&access_token=eyJraWQiOiIxOEpWY2hGcWowQndhNjkxdUFlWW5IVThxdWdaWVhxOW9FaGFZNUd3cGtZPSIsImFsZyI6IlJTMjU2In0.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.J0j9jZFzEG8gjowipZdJ_O_uXUKP5Jyk5PrZvWf5yVZ4jbdoJpgom3IcxFcaDvXbTkB_NNx9soq8Prc-whpYrjQ9RxDTd3Fb6ZyDOXhRaVQAmQSnagVr0_jPhH9Bw4_AS_4jNy4t27yDufpOnEgNWQW1sy96zpuaLFHJYAQblaJCxt_qbf_KETRDCil8ap63XUbAElaCvnSRrIGCcXmVOPChUMDSHVDu4CoMm9cgRQvj-kWFKP96YEO62tFa4_gZk1CICvjFEi7VCH0tvN9JVe8baSHm2GL1jaTeoUeE0jmGPGxGc-7fDBY37JjPbnPiHDZlm3D8eGE1AhO5qI3rng&expires_in=3600&token_type=Bearer

I verified the token on https://jwt.io/ and it is decodable. However, when trying to test the token in test tool in API gateway Authorizer, I got a 401 error.

Also, I tried to post the request in Postman as well and the result is also 401, with the following result.

{
"message": "Unauthorized"
}

My take is that if I can get a token through the endpoint, the token must be correct, right? How can I troubleshoot? thanks

Answer 1

Now I used the "wild rydes" app to sign in for a token, and the token will pass the Authorizer test in API gateway, also Postman API call is working.

Still, the token generated by "Hosted UI" in the Cognito does not work, as in the original question.

Answer 2

The Cognito authorizer on your API Gateway will accept either the ID token or Access token, depending if you specified an OAUTH scope to the API Gateway method when adding the authorization.

The Authorizer test on API Gateway will only accept the ID token. So I would suggest checking that you are getting a token from the correct Cognito UserPool that matches your API Gateway Cognito authorizer and then check your API Gateway method to see if you specified an OAUTH scope. If specified a scope, this scope will need to be in the Access token sent to API Gateway. If no scope specified, send the ID token.