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| bad748 | 1 | // Copyright (c) 2014-present, Facebook, Inc. All rights reserved. |
| W | 2 | // |
| 3 | // You are hereby granted a non-exclusive, worldwide, royalty-free license to use, | |
| 4 | // copy, modify, and distribute this software in source code or binary form for use | |
| 5 | // in connection with the web services and APIs provided by Facebook. | |
| 6 | // | |
| 7 | // As with any software that integrates with the Facebook platform, your use of | |
| 8 | // this software is subject to the Facebook Developer Principles and Policies | |
| 9 | // [http://developers.facebook.com/policy/]. This copyright notice shall be | |
| 10 | // included in all copies or substantial portions of the software. | |
| 11 | // | |
| 12 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 13 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS | |
| 14 | // FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR | |
| 15 | // COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER | |
| 16 | // IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
| 17 | // CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| 18 | ||
| 19 | #import <Foundation/Foundation.h> | |
| 20 | ||
| e81c27 | 21 | NS_ASSUME_NONNULL_BEGIN |
| H | 22 | |
| 23 | /** | |
| 24 | The key in the result dictionary for requests to old versions of the Graph API | |
| 25 | whose response is not a JSON object. | |
| 26 | ||
| 27 | ||
| 28 | When a request returns a non-JSON response (such as a "true" literal), that response | |
| 29 | will be wrapped into a dictionary using this const as the key. This only applies for very few Graph API | |
| 30 | prior to v2.1. | |
| 31 | */ | |
| 32 | FOUNDATION_EXPORT NSString *const FBSDKNonJSONResponseProperty | |
| 33 | NS_SWIFT_NAME(NonJSONResponseProperty); | |
| 34 | ||
| b19a78 | 35 | @protocol FBSDKGraphRequest; |
| bad748 | 36 | @class FBSDKGraphRequestConnection; |
| W | 37 | |
| 9febd9 | 38 | /** |
| e81c27 | 39 | FBSDKGraphRequestBlock |
| bad748 | 40 | |
| 9febd9 | 41 | A block that is passed to addRequest to register for a callback with the results of that |
| bad748 | 42 | request once the connection completes. |
| W | 43 | |
| 44 | Pass a block of this type when calling addRequest. This will be called once | |
| 45 | the request completes. The call occurs on the UI thread. | |
| 46 | ||
| e81c27 | 47 | @param connection The `FBSDKGraphRequestConnection` that sent the request. |
| bad748 | 48 | |
| e81c27 | 49 | @param result The result of the request. This is a translation of |
| bad748 | 50 | JSON data to `NSDictionary` and `NSArray` objects. This |
| W | 51 | is nil if there was an error. |
| 52 | ||
| e81c27 | 53 | @param error The `NSError` representing any error that occurred. |
| bad748 | 54 | |
| W | 55 | */ |
| e81c27 | 56 | typedef void (^FBSDKGraphRequestBlock)(FBSDKGraphRequestConnection *_Nullable connection, |
| H | 57 | id _Nullable result, |
| 58 | NSError *_Nullable error) | |
| 59 | NS_SWIFT_NAME(GraphRequestBlock); | |
| bad748 | 60 | |
| 9febd9 | 61 | /** |
| bad748 | 62 | @protocol |
| W | 63 | |
| 9febd9 | 64 | The `FBSDKGraphRequestConnectionDelegate` protocol defines the methods used to receive network |
| bad748 | 65 | activity progress information from a <FBSDKGraphRequestConnection>. |
| W | 66 | */ |
| e81c27 | 67 | NS_SWIFT_NAME(GraphRequestConnectionDelegate) |
| bad748 | 68 | @protocol FBSDKGraphRequestConnectionDelegate <NSObject> |
| W | 69 | |
| 70 | @optional | |
| 71 | ||
| 9febd9 | 72 | /** |
| bad748 | 73 | @method |
| W | 74 | |
| 9febd9 | 75 | Tells the delegate the request connection will begin loading |
| bad748 | 76 | |
| 9febd9 | 77 | |
| W | 78 | |
| bad748 | 79 | If the <FBSDKGraphRequestConnection> is created using one of the convenience factory methods prefixed with |
| W | 80 | start, the object returned from the convenience method has already begun loading and this method |
| 81 | will not be called when the delegate is set. | |
| 82 | ||
| 13e53a | 83 | @param connection The request connection that is starting a network request |
| bad748 | 84 | */ |
| W | 85 | - (void)requestConnectionWillBeginLoading:(FBSDKGraphRequestConnection *)connection; |
| 86 | ||
| 9febd9 | 87 | /** |
| bad748 | 88 | @method |
| W | 89 | |
| 9febd9 | 90 | Tells the delegate the request connection finished loading |
| bad748 | 91 | |
| 9febd9 | 92 | |
| W | 93 | |
| 94 | If the request connection completes without a network error occurring then this method is called. | |
| bad748 | 95 | Invocation of this method does not indicate success of every <FBSDKGraphRequest> made, only that the |
| e81c27 | 96 | request connection has no further activity. Use the error argument passed to the FBSDKGraphRequestBlock |
| bad748 | 97 | block to determine success or failure of each <FBSDKGraphRequest>. |
| W | 98 | |
| 99 | This method is invoked after the completion handler for each <FBSDKGraphRequest>. | |
| 100 | ||
| 13e53a | 101 | @param connection The request connection that successfully completed a network request |
| bad748 | 102 | */ |
| W | 103 | - (void)requestConnectionDidFinishLoading:(FBSDKGraphRequestConnection *)connection; |
| 104 | ||
| 9febd9 | 105 | /** |
| bad748 | 106 | @method |
| W | 107 | |
| 9febd9 | 108 | Tells the delegate the request connection failed with an error |
| bad748 | 109 | |
| 9febd9 | 110 | |
| W | 111 | |
| bad748 | 112 | If the request connection fails with a network error then this method is called. The `error` |
| W | 113 | argument specifies why the network connection failed. The `NSError` object passed to the |
| e81c27 | 114 | FBSDKGraphRequestBlock block may contain additional information. |
| bad748 | 115 | |
| 13e53a | 116 | @param connection The request connection that successfully completed a network request |
| H | 117 | @param error The `NSError` representing the network error that occurred, if any. May be nil |
| bad748 | 118 | in some circumstances. Consult the `NSError` for the <FBSDKGraphRequest> for reliable |
| W | 119 | failure information. |
| 120 | */ | |
| 121 | - (void)requestConnection:(FBSDKGraphRequestConnection *)connection | |
| 122 | didFailWithError:(NSError *)error; | |
| 123 | ||
| 9febd9 | 124 | /** |
| bad748 | 125 | @method |
| W | 126 | |
| 9febd9 | 127 | Tells the delegate how much data has been sent and is planned to send to the remote host |
| bad748 | 128 | |
| 9febd9 | 129 | |
| W | 130 | |
| bad748 | 131 | The byte count arguments refer to the aggregated <FBSDKGraphRequest> objects, not a particular <FBSDKGraphRequest>. |
| W | 132 | |
| 13e53a | 133 | Like `NSURLSession`, the values may change in unexpected ways if data needs to be resent. |
| bad748 | 134 | |
| 13e53a | 135 | @param connection The request connection transmitting data to a remote host |
| H | 136 | @param bytesWritten The number of bytes sent in the last transmission |
| 137 | @param totalBytesWritten The total number of bytes sent to the remote host | |
| 138 | @param totalBytesExpectedToWrite The total number of bytes expected to send to the remote host | |
| bad748 | 139 | */ |
| W | 140 | - (void)requestConnection:(FBSDKGraphRequestConnection *)connection |
| 141 | didSendBodyData:(NSInteger)bytesWritten | |
| 142 | totalBytesWritten:(NSInteger)totalBytesWritten | |
| 143 | totalBytesExpectedToWrite:(NSInteger)totalBytesExpectedToWrite; | |
| 144 | ||
| 145 | @end | |
| 146 | ||
| 9febd9 | 147 | /** |
| bad748 | 148 | |
| 9febd9 | 149 | The `FBSDKGraphRequestConnection` represents a single connection to Facebook to service a request. |
| bad748 | 150 | |
| 9febd9 | 151 | |
| W | 152 | |
| bad748 | 153 | The request settings are encapsulated in a reusable <FBSDKGraphRequest> object. The |
| W | 154 | `FBSDKGraphRequestConnection` object encapsulates the concerns of a single communication |
| 155 | e.g. starting a connection, canceling a connection, or batching requests. | |
| 156 | ||
| 157 | */ | |
| e81c27 | 158 | NS_SWIFT_NAME(GraphRequestConnection) |
| bad748 | 159 | @interface FBSDKGraphRequestConnection : NSObject |
| e81c27 | 160 | |
| H | 161 | /** |
| 162 | The default timeout on all FBSDKGraphRequestConnection instances. Defaults to 60 seconds. | |
| 163 | */ | |
| 164 | @property (class, nonatomic, assign) NSTimeInterval defaultConnectionTimeout; | |
| bad748 | 165 | |
| 9febd9 | 166 | /** |
| W | 167 | The delegate object that receives updates. |
| bad748 | 168 | */ |
| e81c27 | 169 | @property (nonatomic, weak, nullable) id<FBSDKGraphRequestConnectionDelegate> delegate; |
| bad748 | 170 | |
| 9febd9 | 171 | /** |
| W | 172 | Gets or sets the timeout interval to wait for a response before giving up. |
| bad748 | 173 | */ |
| 13e53a | 174 | @property (nonatomic, assign) NSTimeInterval timeout; |
| bad748 | 175 | |
| 9febd9 | 176 | /** |
| W | 177 | The raw response that was returned from the server. (readonly) |
| bad748 | 178 | |
| 9febd9 | 179 | |
| W | 180 | |
| bad748 | 181 | This property can be used to inspect HTTP headers that were returned from |
| W | 182 | the server. |
| 183 | ||
| 184 | The property is nil until the request completes. If there was a response | |
| e81c27 | 185 | then this property will be non-nil during the FBSDKGraphRequestBlock callback. |
| bad748 | 186 | */ |
| 49b883 | 187 | @property (nonatomic, retain, readonly, nullable) NSHTTPURLResponse *urlResponse; |
| e81c27 | 188 | |
| H | 189 | /** |
| 190 | Determines the operation queue that is used to call methods on the connection's delegate. | |
| 191 | ||
| 192 | By default, a connection is scheduled on the current thread in the default mode when it is created. | |
| 193 | You cannot reschedule a connection after it has started. | |
| 194 | */ | |
| 195 | @property (nonatomic, retain) NSOperationQueue *delegateQueue; | |
| bad748 | 196 | |
| 9febd9 | 197 | /** |
| bad748 | 198 | @methodgroup Class methods |
| W | 199 | */ |
| 200 | ||
| 9febd9 | 201 | /** |
| bad748 | 202 | @methodgroup Adding requests |
| W | 203 | */ |
| 204 | ||
| 9febd9 | 205 | /** |
| bad748 | 206 | @method |
| W | 207 | |
| 9febd9 | 208 | This method adds an <FBSDKGraphRequest> object to this connection. |
| bad748 | 209 | |
| 13e53a | 210 | @param request A request to be included in the round-trip when start is called. |
| H | 211 | @param handler A handler to call back when the round-trip completes or times out. |
| bad748 | 212 | |
| W | 213 | The completion handler is retained until the block is called upon the |
| 214 | completion or cancellation of the connection. | |
| 215 | */ | |
| b19a78 | 216 | - (void)addRequest:(id<FBSDKGraphRequest>)request |
| e81c27 | 217 | completionHandler:(FBSDKGraphRequestBlock)handler; |
| bad748 | 218 | |
| 9febd9 | 219 | /** |
| bad748 | 220 | @method |
| W | 221 | |
| 9febd9 | 222 | This method adds an <FBSDKGraphRequest> object to this connection. |
| bad748 | 223 | |
| 13e53a | 224 | @param request A request to be included in the round-trip when start is called. |
| bad748 | 225 | |
| 13e53a | 226 | @param handler A handler to call back when the round-trip completes or times out. |
| bad748 | 227 | The handler will be invoked on the main thread. |
| W | 228 | |
| e81c27 | 229 | @param name A name for this request. This can be used to feed |
| bad748 | 230 | the results of one request to the input of another <FBSDKGraphRequest> in the same |
| W | 231 | `FBSDKGraphRequestConnection` as described in |
| 232 | [Graph API Batch Requests]( https://developers.facebook.com/docs/reference/api/batch/ ). | |
| 9febd9 | 233 | |
| bad748 | 234 | The completion handler is retained until the block is called upon the |
| W | 235 | completion or cancellation of the connection. This request can be named |
| 236 | to allow for using the request's response in a subsequent request. | |
| 237 | */ | |
| b19a78 | 238 | - (void)addRequest:(id<FBSDKGraphRequest>)request |
| 13e53a | 239 | batchEntryName:(NSString *)name |
| e81c27 | 240 | completionHandler:(FBSDKGraphRequestBlock)handler; |
| bad748 | 241 | |
| 9febd9 | 242 | /** |
| bad748 | 243 | @method |
| W | 244 | |
| 9febd9 | 245 | This method adds an <FBSDKGraphRequest> object to this connection. |
| bad748 | 246 | |
| 13e53a | 247 | @param request A request to be included in the round-trip when start is called. |
| bad748 | 248 | |
| 13e53a | 249 | @param handler A handler to call back when the round-trip completes or times out. |
| bad748 | 250 | |
| e81c27 | 251 | @param batchParameters The dictionary of parameters to include for this request |
| bad748 | 252 | as described in [Graph API Batch Requests]( https://developers.facebook.com/docs/reference/api/batch/ ). |
| W | 253 | Examples include "depends_on", "name", or "omit_response_on_success". |
| 9febd9 | 254 | |
| bad748 | 255 | The completion handler is retained until the block is called upon the |
| W | 256 | completion or cancellation of the connection. This request can be named |
| 257 | to allow for using the request's response in a subsequent request. | |
| 258 | */ | |
| b19a78 | 259 | - (void)addRequest:(id<FBSDKGraphRequest>)request |
| 49b883 | 260 | batchParameters:(nullable NSDictionary<NSString *, id> *)batchParameters |
| e81c27 | 261 | completionHandler:(FBSDKGraphRequestBlock)handler; |
| bad748 | 262 | |
| 9febd9 | 263 | /** |
| bad748 | 264 | @methodgroup Instance methods |
| W | 265 | */ |
| 266 | ||
| 9febd9 | 267 | /** |
| bad748 | 268 | @method |
| W | 269 | |
| 9febd9 | 270 | Signals that a connection should be logically terminated as the |
| bad748 | 271 | application is no longer interested in a response. |
| 9febd9 | 272 | |
| bad748 | 273 | Synchronously calls any handlers indicating the request was cancelled. Cancel |
| W | 274 | does not guarantee that the request-related processing will cease. It |
| 275 | does promise that all handlers will complete before the cancel returns. A call to | |
| 276 | cancel prior to a start implies a cancellation of all requests associated | |
| 277 | with the connection. | |
| 278 | */ | |
| 279 | - (void)cancel; | |
| 280 | ||
| 9febd9 | 281 | /** |
| bad748 | 282 | @method |
| W | 283 | |
| 9febd9 | 284 | This method starts a connection with the server and is capable of handling all of the |
| bad748 | 285 | requests that were added to the connection. |
| W | 286 | |
| 9febd9 | 287 | |
| W | 288 | By default, a connection is scheduled on the current thread in the default mode when it is created. |
| bad748 | 289 | See `setDelegateQueue:` for other options. |
| W | 290 | |
| 291 | This method cannot be called twice for an `FBSDKGraphRequestConnection` instance. | |
| 292 | */ | |
| 293 | - (void)start; | |
| 294 | ||
| 9febd9 | 295 | /** |
| bad748 | 296 | @method |
| W | 297 | |
| 9febd9 | 298 | Overrides the default version for a batch request |
| W | 299 | |
| bad748 | 300 | The SDK automatically prepends a version part, such as "v2.0" to API paths in order to simplify API versioning |
| W | 301 | for applications. If you want to override the version part while using batch requests on the connection, call |
| 302 | this method to set the version for the batch request. | |
| 303 | ||
| 13e53a | 304 | @param version This is a string in the form @"v2.0" which will be used for the version part of an API path |
| bad748 | 305 | */ |
| 13e53a | 306 | - (void)overrideGraphAPIVersion:(NSString *)version; |
| H | 307 | |
| bad748 | 308 | @end |
| W | 309 | |
| e81c27 | 310 | NS_ASSUME_NONNULL_END |
