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What is Amazon Cognito? Amazon Cognito provides authentication, authorization, and user management for your web and mobile apps. Your users can sign in directly with a user name and password, or through a third party such as Facebook, Amazon, Google or Apple. The two main components of Amazon Cognito are user pools and identity pools. User pools are user directories that provide sign-up and sign-in options for your app users. Identity pools enable you to grant your users access to other AWS services. You can use identity pools and user pools separately or together. An Amazon Cognito user pool and identity pool used together See the diagram for a common Amazon Cognito scenario. Here the goal is to authenticate your user, and then grant your user access to another AWS service. In the first step your app user signs in through a us...

Postman is a very good tool for testing rest APIs. It can be used backend as well as frontend developer for Rest APIs testing. We can do Mannual as well as Automation testing using Postman. Below is the URL for download the postman https://www.postman.com/downloads For the Rest API Testing we use below url https://reqres.in   Once we setup the postman lets start implementing Unit test cases.  Video Demo is present on  https://youtu.be/_NkOiv-aid8 List User API Request URL:-    https://reqres.in/api/users Method:- GET Request:- Response Body:- { "page": 1, "per_page": 6, "total": 12, "total_pages": 2, "data": [ { "id": 1, "email": "george.bluth@reqres.in", "first_name": "George", "last_name": "Bluth", "avatar": "https://reqres.in/img/faces/1-ima...