What are some use cases for OAuth2 Authorization Code Flow?

What are some use cases for OAuth2 Authorization Code Flow?

OAuth2 Authorization Code Flow is commonly used in scenarios where a user needs to grant access to their data without sharing their credentials. Some use cases include web applications accessing APIs on behalf of users, mobile apps needing secure access to user accounts, and third-party services integrating with platforms like Google or Facebook.

Can you explain how it works in a web application?

Sure! In a web application, the flow starts when a user clicks a 'Login with [Service]' button. The app redirects the user to the service's authorization server, where they log in and grant permissions. The server then redirects back to the app with an authorization code, which the app exchanges for an access token to access the user's data.

What are the benefits of using this flow?

The benefits include enhanced security since users don't share passwords, the ability to request specific permissions, and the capability to refresh tokens without requiring user interaction.

Are there any drawbacks?

Yes, some drawbacks include the complexity of implementation, the need for secure storage of tokens, and potential issues with token expiration and revocation.