// 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
|
|
/**
|
The key in the result dictionary for requests to old versions of the Graph API
|
whose response is not a JSON object.
|
|
|
When a request returns a non-JSON response (such as a "true" literal), that response
|
will be wrapped into a dictionary using this const as the key. This only applies for very few Graph API
|
prior to v2.1.
|
*/
|
FOUNDATION_EXPORT NSString *const FBSDKNonJSONResponseProperty
|
NS_SWIFT_NAME(NonJSONResponseProperty);
|
|
@class FBSDKGraphRequest;
|
@class FBSDKGraphRequestConnection;
|
|
/**
|
FBSDKGraphRequestBlock
|
|
A block that is passed to addRequest to register for a callback with the results of that
|
request once the connection completes.
|
|
Pass a block of this type when calling addRequest. This will be called once
|
the request completes. The call occurs on the UI thread.
|
|
@param connection The `FBSDKGraphRequestConnection` that sent the request.
|
|
@param result The result of the request. This is a translation of
|
JSON data to `NSDictionary` and `NSArray` objects. This
|
is nil if there was an error.
|
|
@param error The `NSError` representing any error that occurred.
|
|
*/
|
typedef void (^FBSDKGraphRequestBlock)(FBSDKGraphRequestConnection *_Nullable connection,
|
id _Nullable result,
|
NSError *_Nullable error)
|
NS_SWIFT_NAME(GraphRequestBlock);
|
|
/**
|
@protocol
|
|
The `FBSDKGraphRequestConnectionDelegate` protocol defines the methods used to receive network
|
activity progress information from a <FBSDKGraphRequestConnection>.
|
*/
|
NS_SWIFT_NAME(GraphRequestConnectionDelegate)
|
@protocol FBSDKGraphRequestConnectionDelegate <NSObject>
|
|
@optional
|
|
/**
|
@method
|
|
Tells the delegate the request connection will begin loading
|
|
|
|
If the <FBSDKGraphRequestConnection> is created using one of the convenience factory methods prefixed with
|
start, the object returned from the convenience method has already begun loading and this method
|
will not be called when the delegate is set.
|
|
@param connection The request connection that is starting a network request
|
*/
|
- (void)requestConnectionWillBeginLoading:(FBSDKGraphRequestConnection *)connection;
|
|
/**
|
@method
|
|
Tells the delegate the request connection finished loading
|
|
|
|
If the request connection completes without a network error occurring then this method is called.
|
Invocation of this method does not indicate success of every <FBSDKGraphRequest> made, only that the
|
request connection has no further activity. Use the error argument passed to the FBSDKGraphRequestBlock
|
block to determine success or failure of each <FBSDKGraphRequest>.
|
|
This method is invoked after the completion handler for each <FBSDKGraphRequest>.
|
|
@param connection The request connection that successfully completed a network request
|
*/
|
- (void)requestConnectionDidFinishLoading:(FBSDKGraphRequestConnection *)connection;
|
|
/**
|
@method
|
|
Tells the delegate the request connection failed with an error
|
|
|
|
If the request connection fails with a network error then this method is called. The `error`
|
argument specifies why the network connection failed. The `NSError` object passed to the
|
FBSDKGraphRequestBlock block may contain additional information.
|
|
@param connection The request connection that successfully completed a network request
|
@param error The `NSError` representing the network error that occurred, if any. May be nil
|
in some circumstances. Consult the `NSError` for the <FBSDKGraphRequest> for reliable
|
failure information.
|
*/
|
- (void)requestConnection:(FBSDKGraphRequestConnection *)connection
|
didFailWithError:(NSError *)error;
|
|
/**
|
@method
|
|
Tells the delegate how much data has been sent and is planned to send to the remote host
|
|
|
|
The byte count arguments refer to the aggregated <FBSDKGraphRequest> objects, not a particular <FBSDKGraphRequest>.
|
|
Like `NSURLSession`, the values may change in unexpected ways if data needs to be resent.
|
|
@param connection The request connection transmitting data to a remote host
|
@param bytesWritten The number of bytes sent in the last transmission
|
@param totalBytesWritten The total number of bytes sent to the remote host
|
@param totalBytesExpectedToWrite The total number of bytes expected to send to the remote host
|
*/
|
- (void)requestConnection:(FBSDKGraphRequestConnection *)connection
|
didSendBodyData:(NSInteger)bytesWritten
|
totalBytesWritten:(NSInteger)totalBytesWritten
|
totalBytesExpectedToWrite:(NSInteger)totalBytesExpectedToWrite;
|
|
@end
|
|
/**
|
|
The `FBSDKGraphRequestConnection` represents a single connection to Facebook to service a request.
|
|
|
|
The request settings are encapsulated in a reusable <FBSDKGraphRequest> object. The
|
`FBSDKGraphRequestConnection` object encapsulates the concerns of a single communication
|
e.g. starting a connection, canceling a connection, or batching requests.
|
|
*/
|
NS_SWIFT_NAME(GraphRequestConnection)
|
@interface FBSDKGraphRequestConnection : NSObject
|
|
/**
|
The default timeout on all FBSDKGraphRequestConnection instances. Defaults to 60 seconds.
|
*/
|
@property (class, nonatomic, assign) NSTimeInterval defaultConnectionTimeout;
|
|
/**
|
The delegate object that receives updates.
|
*/
|
@property (nonatomic, weak, nullable) id<FBSDKGraphRequestConnectionDelegate> delegate;
|
|
/**
|
Gets or sets the timeout interval to wait for a response before giving up.
|
*/
|
@property (nonatomic, assign) NSTimeInterval timeout;
|
|
/**
|
The raw response that was returned from the server. (readonly)
|
|
|
|
This property can be used to inspect HTTP headers that were returned from
|
the server.
|
|
The property is nil until the request completes. If there was a response
|
then this property will be non-nil during the FBSDKGraphRequestBlock callback.
|
*/
|
@property (nonatomic, retain, readonly) NSHTTPURLResponse *urlResponse;
|
|
/**
|
Determines the operation queue that is used to call methods on the connection's delegate.
|
|
By default, a connection is scheduled on the current thread in the default mode when it is created.
|
You cannot reschedule a connection after it has started.
|
*/
|
@property (nonatomic, retain) NSOperationQueue *delegateQueue;
|
|
/**
|
@methodgroup Class methods
|
*/
|
|
/**
|
@methodgroup Adding requests
|
*/
|
|
/**
|
@method
|
|
This method adds an <FBSDKGraphRequest> object to this connection.
|
|
@param request A request to be included in the round-trip when start is called.
|
@param handler A handler to call back when the round-trip completes or times out.
|
|
The completion handler is retained until the block is called upon the
|
completion or cancellation of the connection.
|
*/
|
- (void)addRequest:(FBSDKGraphRequest *)request
|
completionHandler:(FBSDKGraphRequestBlock)handler;
|
|
/**
|
@method
|
|
This method adds an <FBSDKGraphRequest> object to this connection.
|
|
@param request A request to be included in the round-trip when start is called.
|
|
@param handler A handler to call back when the round-trip completes or times out.
|
The handler will be invoked on the main thread.
|
|
@param name A name for this request. This can be used to feed
|
the results of one request to the input of another <FBSDKGraphRequest> in the same
|
`FBSDKGraphRequestConnection` as described in
|
[Graph API Batch Requests]( https://developers.facebook.com/docs/reference/api/batch/ ).
|
|
The completion handler is retained until the block is called upon the
|
completion or cancellation of the connection. This request can be named
|
to allow for using the request's response in a subsequent request.
|
*/
|
- (void)addRequest:(FBSDKGraphRequest *)request
|
batchEntryName:(NSString *)name
|
completionHandler:(FBSDKGraphRequestBlock)handler;
|
|
/**
|
@method
|
|
This method adds an <FBSDKGraphRequest> object to this connection.
|
|
@param request A request to be included in the round-trip when start is called.
|
|
@param handler A handler to call back when the round-trip completes or times out.
|
|
@param batchParameters The dictionary of parameters to include for this request
|
as described in [Graph API Batch Requests]( https://developers.facebook.com/docs/reference/api/batch/ ).
|
Examples include "depends_on", "name", or "omit_response_on_success".
|
|
The completion handler is retained until the block is called upon the
|
completion or cancellation of the connection. This request can be named
|
to allow for using the request's response in a subsequent request.
|
*/
|
- (void)addRequest:(FBSDKGraphRequest *)request
|
batchParameters:(NSDictionary<NSString *, id> *)batchParameters
|
completionHandler:(FBSDKGraphRequestBlock)handler;
|
|
/**
|
@methodgroup Instance methods
|
*/
|
|
/**
|
@method
|
|
Signals that a connection should be logically terminated as the
|
application is no longer interested in a response.
|
|
Synchronously calls any handlers indicating the request was cancelled. Cancel
|
does not guarantee that the request-related processing will cease. It
|
does promise that all handlers will complete before the cancel returns. A call to
|
cancel prior to a start implies a cancellation of all requests associated
|
with the connection.
|
*/
|
- (void)cancel;
|
|
/**
|
@method
|
|
This method starts a connection with the server and is capable of handling all of the
|
requests that were added to the connection.
|
|
|
By default, a connection is scheduled on the current thread in the default mode when it is created.
|
See `setDelegateQueue:` for other options.
|
|
This method cannot be called twice for an `FBSDKGraphRequestConnection` instance.
|
*/
|
- (void)start;
|
|
/**
|
@method
|
|
Overrides the default version for a batch request
|
|
The SDK automatically prepends a version part, such as "v2.0" to API paths in order to simplify API versioning
|
for applications. If you want to override the version part while using batch requests on the connection, call
|
this method to set the version for the batch request.
|
|
@param version This is a string in the form @"v2.0" which will be used for the version part of an API path
|
*/
|
- (void)overrideGraphAPIVersion:(NSString *)version;
|
|
@end
|
|
NS_ASSUME_NONNULL_END
|
