### Is your feature request related to a problem? Please describe. The existing application doesn't have any authentication. ### Describe the solution you'd like Show how authentication works in the browser with Amazon Cognito * [AWS Blog post](https://aws.amazon.com/blogs/developer/authentication-in-the-browser-with-amazon-cognito-and-public-identity-providers/) * [How to setup Facebook login using Amazon Cognito](https://serverless-stack.com/chapters/facebook-login-with-cognito-using-aws-amplify.html) * [Login with Amazon (Identity Pools)](https://docs.aws.amazon.com/cognito/latest/developerguide/amazon.html) * [Login with Amazon SDK for JavaScript Reference Guide](https://aws.amazon.com/blogs/developer/authentication-in-the-browser-with-amazon-cognito-and-public-identity-providers/)