OAuthFlows

OAuth flows are standardized ways for users to grant third-party applications access to their data hosted on another service, without sharing their login credentials directly. These flows are a core component of the OAuth 2.0 authorization framework. The primary goal is to enable delegated authorization, enhancing security and user privacy.

Several distinct OAuth flows exist, each designed for different application types and scenarios. The Authorization Code flow is widely used for web applications and native mobile apps. It involves redirecting the user to the authorization server to grant permission, then exchanging a code for an access token. The Implicit flow, while simpler, is less secure and generally discouraged for new applications; it directly returns an access token to the client application.

The Resource Owner Password Credentials flow allows an application to collect the user's username and password and exchange them for an access token. This flow should only be used with highly trusted applications. The Client Credentials flow is used when an application is accessing its own resources or when no user is involved, such as for machine-to-machine communication.

Each flow defines a sequence of steps involving the resource owner (user), the client application, and the authorization server. The proper selection and implementation of an OAuth flow are crucial for secure and effective integration between services.