Today I will show you how to create user authentication without running a server for it. AWS Cognito service is the very useful tool if you need to make login and registration for your app but do not want to deal with a server and logic for it. You can set up a User Pool in AWS and then use token based authorisation for your app. And with Serverless framework its even easier - you declare your config in server less file once and then it does everything for you.
Cognito Serverless example
https://docs.aws.amazon.com/serverles...
Repos:
https://github.com/nim-f/recognition-...
https://github.com/nim-f/rekognition-...