OAuth is an open-standard protocol for authorization, allowing users to grant third-party applications limited access to their resources without sharing credentials. Below is a breakdown of key concepts and implementation steps:

🧠 Core Concepts

  • Authorization Code Flow: The most common OAuth flow for web applications.
    OAuth Authorization Code Flow
  • Implicit Flow: Simplified for single-page applications (SPAs).
  • Client Credentials Flow: Used for server-to-server communication.
  • Scopes: Define the level of access granted (e.g., read, write, offline).

📝 Implementation Steps

  1. Register Your Application
  2. Redirect User to Authorization Server
    • Use the authorization_code flow for secure token exchange.
  3. Handle Redirect and Extract Token
    • Validate the code parameter and request an access_token via POST.

📚 Related Resources

❓ Common Questions

  • How to revoke tokens?
    Use the revoke_token endpoint with the appropriate scope.
  • What are the security risks?
    Always use HTTPS, and avoid exposing client_secret in client-side code.

For visual examples of OAuth workflows, check the OAuth Visualization section. 🌐🔒