Summary:
- The article discusses OAuth2, an open standard for authorization that allows applications to access user data without requiring the user to share their login credentials.
- OAuth2 provides a secure way for applications to obtain limited access to a user's data on an HTTP service, such as Facebook, Google, or Twitter, without the user having to share their username and password.
- The article explains the different OAuth2 grant types, including Authorization Code, Implicit, Resource Owner Password Credentials, and Client Credentials, and how they are used in different scenarios to facilitate secure authentication and authorization.