// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
//
// You are hereby granted a non-exclusive, worldwide, royalty-free license to use,
// copy, modify, and distribute this software in source code or binary form for use
// in connection with the web services and APIs provided by Facebook.
//
// As with any software that integrates with the Facebook platform, your use of
// this software is subject to the Facebook Developer Principles and Policies
// [http://developers.facebook.com/policy/]. This copyright notice shall be
// included in all copies or substantial portions of the software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@class FBSDKGraphRequestConnection;
@protocol FBSDKGraphRequest;
typedef void (^FBSDKGraphRequestBlock)(FBSDKGraphRequestConnection *_Nullable connection,
                                       id _Nullable result,
                                       NSError *_Nullable error);

/// A protocol to describe an object that can manage graph requests
NS_SWIFT_NAME(GraphRequestConnecting)
@protocol FBSDKGraphRequestConnecting

@property (nonatomic, assign) NSTimeInterval timeout;

- (void)addRequest:(id<FBSDKGraphRequest>)request
 completionHandler:(FBSDKGraphRequestBlock)handler;

- (void)start;
- (void)cancel;

@end

NS_ASSUME_NONNULL_END