Looking for logging into the Cognito Vs Oauth2 Authorize site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Cognito Vs Oauth2 Authorize site. After that you can login as usual with your login credentials.
https://aws.amazon.com/blogs/mobile/understanding-amazon-cognito-user-pool-oauth-2-0-grants/
https://docs.aws.amazon.com/cognito/latest/developerguide/authorization-endpoint.html
https://interworks.com.mk/cognito-and-oauth2-authorization-flow/
https://medium.com/@robert.broeckelmann/openid-connect-authorization-code-flow-with-aws-cognito-246997abd11a
https://www.integralist.co.uk/posts/cognito/
https://github.com/aws-amplify/amplify-js/issues/1120
https://github.com/aws-amplify/amplify-js/issues/1316
https://github.com/aws/amazon-cognito-auth-js/issues/52
https://stackoverflow.com/questions/50264679/aws-cognito-unauthorized-client-error-when-hitting-oauth2-token
https://aws-amplify.github.io/docs/js/authentication
https://blog.feathersjs.com/enterprise-grade-authentication-using-aws-cognito-and-onelogin-with-feathersjs-d4c6f46ab123
https://gofore.com/en/spring-boot/
https://success.salesforce.com/answers?id=9063A000000DwlsQAC