OAuth 2
OAuth 2 is an authorization framework that enables third-party applications to obtain limited access to user accounts on HTTP services, such as social media platforms or cloud storage. It allows users to grant access to their resources without sharing their credentials, using access tokens instead. The framework defines roles, grant types, and flows to handle different authorization scenarios securely.
Developers should learn OAuth 2 when building applications that need to integrate with external services, such as allowing users to log in via Google or Facebook, or accessing APIs from providers like GitHub or Dropbox. It is essential for implementing secure delegated access in web, mobile, and desktop apps, reducing the risk of credential exposure and simplifying user authentication across platforms.