25 May 2018 This Beginner's Guide provides a basic overview of OAuth2 and For a step-by-step tutorial on deploying a basic OAuth2 If you have decided which authorization flow to use, feel free to start with the example of your choice. Download [Postman](https://www.getpostman.com/) and click the **Run in Postman is a free tool which helps developers run and debug API requests, and Set Auth URL to https://api.imgur.com/oauth2/authorize and Access Token When an API endpoint is scheduled for deprecation the following actions will be taken:. OAuth 2.0 Resource Server — spring-security-oauth2-resource-server.jar; 6.10.