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Signs the user in using the iOS device identifier, returning a session identifier that can subsequently be used for API calls which require an authenticated user

Syntax

Parameters

serviceConfigHandle   PFServiceConfigHandle PFServiceConfigHandle returned from PFServiceConfigCreateHandle call. secretKey   char*
In_z
Title Secret Key used to authenticate the service request. request   PFAuthenticationServerLoginWithIOSDeviceIDRequest* Populated request object. async   XAsyncBlock*
Inout
XAsyncBlock for the async operation.

Return value

Type: HRESULT Result code for this API operation.

Remarks

This API is available on Windows. On iOS devices, the identifierForVendor (https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIDevice_Class/index.html# // apple_ref/occ/instp/UIDevice/identifierForVendor) must be used as the DeviceId, as the UIDevice uniqueIdentifier has been deprecated as of iOS 5, and use of the advertisingIdentifier for this purpose will result in failure of Apple’s certification process. If this is the first time a user has signed in with the iOS device and CreateAccount is set to true, a new PlayFab account will be created and linked to the vendor-specific iOS device ID. In this case, no email or username will be associated with the PlayFab account. Otherwise, if no PlayFab account is linked to the iOS device, an error indicating this will be returned, so that the title can guide the user through creation of a PlayFab account. When the asynchronous task is complete, call PFAuthenticationServerLoginWithIOSDeviceIDGetResult to get the result.

Requirements

Header: PFAuthentication.h

See also

PFAuthentication members
Last modified on September 11, 2026