You can also use any other company's API which uses OAuth 2 flow.īut before that lets just see what happens when we hit the secured endpoint without authorization. For this, we will use imgur website API which is an online image sharing community. In this tutorial we will be using Postman to see the workflow of OAuth 2.0. This tutorial is designed to make you completely understand the concept along with the practical example. OAuth 2.0 Authorization with Postman OAuth 2.0 Authorization with Postman? In the last tutorial we learnt everything about OAuth 2.0 Authorization, its's advantages, meaning and workflow.