OAuth 2.0
- https://oauth.net/2/
- The industry-standard protocol for authorization.
- Single-Sign-On (SSO)
- Social Login
Examples
Node.js
- https://github.com/passport/express-4.x-facebook-example
- https://github.com/kenu/express-4.x-google-example
- https://github.com/kenu/express-4.x-github-example
- https://github.com/kenu/express-4.x-naver-example