I had a practical introduction to Amazon Cognito, so I’ll share the information that was helpful as reference.

Background: Want to Delegate Authentication and Authorization to Amazon Cognito

There was a case where I wanted to delegate authentication and authorization to an external service, so I tried using Amazon Cognito.

eBook 'Amazon Cognito UserPool Practical Introduction'

• eBook sales site: Cognito UserPool User Migration Introduction - hiroga - BOOTH
• Introduction article: For the first step with Cognito. I read "Amazon Cognito UserPool Practical Introduction" | Developers.IO

Trying Amazon Cognito with AWS Amplify

I tried Amazon Cognito by referring to the official documentation for AWS Amplify + React.js.

• Tutorial - Set up fullstack project - Amplify Docs

That’s all from the Gemba, where I had a practical introduction to Amazon Cognito.