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# ASAuthorizationProviderExtensionAuthorizationRequestHandler

An interface through which a single sign-on (SSO) authentication provider extension handles authentication requests.

```
@MainActor protocol ASAuthorizationProviderExtensionAuthorizationRequestHandler : NSObjectProtocol
```

## Topics

### Starting or Canceling a Request

[`beginAuthorization(with:)`](/documentation/AuthenticationServices/ASAuthorizationProviderExtensionAuthorizationRequestHandler/beginAuthorization(with:))

Tells your request handler to authorize the given request.

[`cancelAuthorization(with:)`](/documentation/AuthenticationServices/ASAuthorizationProviderExtensionAuthorizationRequestHandler/cancelAuthorization(with:))

Tells your request handler to cancel the authorization of the given request.

[`ASAuthorizationProviderExtensionAuthorizationRequest`](/documentation/AuthenticationServices/ASAuthorizationProviderExtensionAuthorizationRequest)

An authorization request that your provider extension handles.


---

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