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/*
* Copyright 2019 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import <FirebaseInstanceID/FIRInstanceID.h>
#import <FirebaseInstanceID/FIRInstanceIDCheckinPreferences.h>
/**
* @related FIRInstanceIDCheckinService
*
* The completion handler invoked once the fetch from Checkin server finishes.
* For successful fetches we returned checkin information by the checkin service
* and `nil` error, else we return the appropriate error object as reported by the
* Checkin Service.
*
* @param checkinPreferences The checkin preferences as fetched from the server.
* @param error The error object which fetching GServices data.
*/
typedef void (^FIRInstanceIDDeviceCheckinCompletion)(
FIRInstanceIDCheckinPreferences *_Nullable checkinPreferences, NSError *_Nullable error);
/**
* Private API used by Firebase SDK teams by calling in reflection or internal teams.
*/
@interface FIRInstanceID (Private)
/**
* Fetches checkin info for the app. If the app has valid cached checkin preferences
* they are returned instead of making a network request.
*
* @param handler The completion handler to invoke once the request has completed.
*/
- (void)fetchCheckinInfoWithHandler:(nullable FIRInstanceIDDeviceCheckinCompletion)handler;
/**
* Get the InstanceID for the app. If an ID was created before and cached
* successfully we will return that ID. If no cached ID exists we create
* a new ID, cache it and return that.
*
* This is a blocking call and should not really be called on the main thread.
*
* @param error The error object that represents the error while trying to
* retrieve the instance id.
*
* @return The InstanceID for the app.
*/
- (nullable NSString *)appInstanceID:(NSError *_Nullable *_Nullable)error
DEPRECATED_MSG_ATTRIBUTE("Please use getID(handler:) for Swift or "
"getIDWithHandler: for Objective-C instead.");
@end