OAuth

OAuth (Open Authorization) is an open standard for authorization that allows users to share their private resources (such as data, files, and social media accounts) stored on one site with another site without sharing their credentials (username and password).

OAuth provides a way for users to grant limited access to their resources from one site to another site without having to share their credentials. Instead of sharing their password, the user is issued a token that can be used to access the protected resources on the site. This token can be revoked by the user at any time, giving them more control over their data and who can access it.

Some common use cases of OAuth include

• Social media logins: Users can log in to a third-party site using their social media account (such as Facebook or Google) without having to create a separate account or share their password with the third-party site.
• API access: OAuth can be used to provide access to an API on behalf of a user, allowing developers to access user data from a different site without having to ask for their password.
• Single sign-on: OAuth can be used to provide single sign-on (SSO) across multiple sites, allowing users to log in once and access multiple sites without having to log in again.

OAuth is widely used by many popular websites and apps, such as Google, Facebook, Twitter, and Microsoft, to provide a secure and easy way for users to share their data and log in to third-party sites.