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# ASAuthorization.OpenIDOperation

The kinds of operations that you can perform with OpenID authentication.

```
struct OpenIDOperation
```

## Discussion

Use one of these values as the [`requestedOperation`](/documentation/AuthenticationServices/ASAuthorizationOpenIDRequest/requestedOperation) property in an OpenID request that you make with an instance of either [`ASAuthorizationAppleIDRequest`](/documentation/AuthenticationServices/ASAuthorizationAppleIDRequest) or [`ASAuthorizationSingleSignOnRequest`](/documentation/AuthenticationServices/ASAuthorizationSingleSignOnRequest).

## Topics

### Operation Types

[`operationLogin`](/documentation/AuthenticationServices/ASAuthorization/OpenIDOperation/operationLogin)

An operation used to authenticate a user.

[`operationRefresh`](/documentation/AuthenticationServices/ASAuthorization/OpenIDOperation/operationRefresh)

An operation that refreshes the logged-in user’s credentials.

[`operationLogout`](/documentation/AuthenticationServices/ASAuthorization/OpenIDOperation/operationLogout)

An operation that ends an authenticated session.

[`operationImplicit`](/documentation/AuthenticationServices/ASAuthorization/OpenIDOperation/operationImplicit)

An operation that depends on the particular kind of credential provider.

### Creating an Operation

[`init(_:)`](/documentation/AuthenticationServices/ASAuthorization/OpenIDOperation/init(_:))

Creates an operation from the given string.

[`init(rawValue:)`](/documentation/AuthenticationServices/ASAuthorization/OpenIDOperation/init(rawValue:))

Creates an operation from the given string.


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