Delegate AuthorizationRedirectDelegate

Namespace

ModelContextProtocol.Authentication

Assembly

ModelContextProtocol.Core.dll

Represents a method that handles the OAuth authorization URL and returns the authorization code.

[Obsolete("AuthorizationRedirectDelegate cannot provide the RFC 9207 issuer and is retained for compatibility only. Use AuthorizationCallbackHandler instead.", DiagnosticId = "MCP9007", UrlFormat = "https://github.com/modelcontextprotocol/csharp-sdk/blob/main/docs/list-of-diagnostics.md#obsolete-apis")]
public delegate Task<string?> AuthorizationRedirectDelegate(Uri authorizationUri, Uri redirectUri, CancellationToken cancellationToken)

Parameters

authorizationUri Uri

The authorization URL that the user needs to visit.

redirectUri Uri

The redirect URI where the authorization code will be sent.

cancellationToken CancellationToken

The CancellationToken to monitor for cancellation requests. The default is None.

Returns

Task<string>

A task that represents the asynchronous operation. The task result contains the authorization code if successful, or null if the operation failed or was cancelled.

Remarks

This delegate cannot return the iss parameter from the authorization response, so RFC 9207 issuer validation is skipped when it is used. Use AuthorizationCallbackHandler for issuer-aware authorization flows.