Salesforce - JWT Bearer Flow for Authentication

Hello Trailblazers, In this blog we are going to focus on OAuth 2.0 JWT Bearer Flow for Server-to-Server Integration. JWT Bearer Flow is used for server to server communication and to avoid logging in each time. JWT Bearer Token is something that you provide to some other service to let that service authenticate you. This flow uses a certificate to sign the JWT request and doesn’t require explicit user interaction. However, this flow does require prior approval of the client app. Which means you need to allow access first for the connected app by using some third-party authorization app. So, we can consider JWT as a key which gives us access to various things. Pre-requisites for JWT(JSON Web Token) Bearer Flow X509 certificate Connected App X509 certificate Since we will be signing JWT using RSA SHA256, we need certificate as a secret for signing data. You can download certificate from Salesforce or you can use openssl for ge...