What is OAuth?
OAuth (Open Authorization) is an open standard for authorization that allow web apps to request access to third party systems on behalf of its users without sharing any account credentials.
OAuth 2.0 is an authorization framework which delegates access and permissions between APIs and applications in a safe and reliable exchange and made more compatible for use by both websites and apps
It also allows for a greater variety of access tokens, like having short-lived tokens and long-lived refresh tokens.
Key Components of OAuth 2.0
Resource Owner - The user who owns the resources
Client - The application requesting access
Authorization Server - Issues access tokens
Resource Server - Hosts protected resources
Access Token - Grants access with specific scopes
Redirect URI - After permission is granted
BEST PRACTICES
- Choose the Right Grant Type
- Implement Secure Token Management
- Consistent User Consent Mechanisms
- Regular Security Reviews and Updates