Authorization code
An authorization code is a short-lived credential issued by an authorization server for a client to exchange for an access token.
Secure APIs
An authorization code is a short-lived credential issued by an authorization server that a client exchanges for an access token.
- How it is used
- Uses a browser-mediated flow for web applications and confidential clients to obtain access tokens after user consent.
- How deep it goes
- Explains request parameters, redirects, token exchange, interception risk, and PKCE generation, but does not detail authorization-server internals.
- Examples
- Uses LinkedIn profile access, Auth0 redirects, FastAPI /login and /token endpoints, and authorization-request URLs.
- What you can do after
- Implement a login flow that redirects users, receives authorization codes, exchanges them for access tokens, and applies PKCE protection.
.NET MAUI in Action
An authorization code is a short-lived credential returned after user authorization that a client exchanges for access and related tokens.
- How it is used
- Uses the authorization code as the callback credential in a browser-based OAuth2 login for a .NET MAUI application.
- How deep it goes
- Explains its redirect, extraction, and token-exchange role, but defers the identity provider’s internal exchange process.
- Examples
- Demonstrates a custom-scheme callback, AuthBrowser parsing, and AuthService configuring OidcClient.
- What you can do after
- Operate/configure a mobile login callback that returns an authorization code for OidcClient token processing.
Related concepts
- authorization code flowused by · The authorization code flow is an OAuth protocol in which a client obtains a short-lived authorization code after user authorization and exchanges it for access or other tokens.
- authorization serverproduced by · An authorization server is an OAuth component that authenticates clients or resource owners, obtains authorization, and issues credentials such as authorization codes and access tokens.
- authorization endpointproduced by · An authorization endpoint is an identity provider endpoint where a client initiates user authorization and authentication to obtain an authorization result.
- API keyproduces · An API key is a credential used to identify or authorize a client accessing an application programming interface.
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