OAuth 2.0 is an industry standard for authorization, enabling secure access to resources without sharing credentials. Here's a simplified breakdown of the Basic Flow:

  1. Authorization Request
    The client redirects the user to the authorization server with a request like:
    https://auth-server.com/authorize?client_id=YOUR_CLIENT_ID&redirect_uri=YOUR_REDIRECT_URI&response_type=code&scope=read

    OAuth 2.0 Authentication Process

  2. User Consent
    The user logs in and grants permissions. 🧑‍💻

    User Consent Screen

  3. Authorization Code
    After approval, the server redirects the user back to the client with an authorization code.

    Authorization Code Exchange

  4. Token Request
    The client exchanges the code for an access token at the token endpoint:
    POST /token HTTP/1.1
    Content-Type: application/x-www-form-urlencoded
    grant_type=authorization_code&code=AUTHORIZATION_CODE&redirect_uri=YOUR_REDIRECT_URI&client_id=YOUR_CLIENT_ID&client_secret=YOUR_CLIENT_SECRET

  5. Resource Access
    Use the access token to request protected resources:
    Authorization: Bearer ACCESS_TOKEN

    Resource Access Example

For deeper insights into OAuth 2.0 architecture, visit our OAuth 2.0 Overview Guide. 🔗