OAuth 2.0 and JSON Web Tokens (JWT) help make these processes more manageable and reliable. In a system that uses OAuth2 and JWT, the access badge is bundled into your ID card. The Client uses this access token to access data from the Resource Server. OAuth2 can also work with Opaque Tokens, SAML Tokens, or custom token formats like Microsoft’s reference tokens or Google’s access tokens. This implementation enables you to simulate a client sending a request with a Bearer token (JWT).