FBSDKGraphRequest

Represents a request to the Facebook Graph API.

Discussion:

FBSDKGraphRequest encapsulates the components of a request (the Graph API path, the parameters, error recovery behavior) and should be used in conjunction with FBSDKGraphRequestConnection to issue the request. Nearly all Graph APIs require an access token. Unless specified, the [FBSDKAccessToken currentAccessToken] is used. Therefore, most requests will require login first (see FBSDKLoginManager in FBSDKLoginKit.framework). A - start method is provided for convenience for single requests. By default, FBSDKGraphRequest will attempt to recover any errors returned from Facebook. You can disable this via disableErrorRecovery:.

Superclass:NSObject
Declared in:FBSDKGraphRequest.h
属性
graphPath

The Graph API endpoint to use for the request, for example "me".

@property (nonatomic, copy, readonly) NSString *graphPath;
声明语言: FBSDKGraphRequest.h
HTTPMethod

The HTTPMethod to use for the request, for example "GET" or "POST".

@property (nonatomic, copy, readonly) NSString *HTTPMethod;
声明语言: FBSDKGraphRequest.h
parameters

The request parameters.

@property (nonatomic, strong, readonly) NSMutableDictionary *parameters;
声明语言: FBSDKGraphRequest.h
tokenString

The access token string used by the request.

@property (nonatomic, copy, readonly) NSString *tokenString;
声明语言: FBSDKGraphRequest.h
version

The Graph API version to use (e.g., "v2.0")

@property (nonatomic, copy, readonly) NSString *version;
声明语言: FBSDKGraphRequest.h
实例方法
initWithGraphPath:parameters:

Initializes a new instance that use use [FBSDKAccessToken currentAccessToken].

参数描述
graphPath

The graph path (e.g., @"me").

parameters

The optional parameters dictionary.

- (instancetype)
initWithGraphPath: (NSString *)graphPath
parameters: (NSDictionary *)parameters;
声明语言: FBSDKGraphRequest.h
initWithGraphPath:parameters:HTTPMethod:

Initializes a new instance that use use [FBSDKAccessToken currentAccessToken].

参数描述
graphPath

The graph path (e.g., @"me").

parameters

The optional parameters dictionary.

HTTPMethod

The optional HTTP method. nil defaults to @"GET".

- (instancetype)
initWithGraphPath: (NSString *)graphPath
parameters: (NSDictionary *)parameters
HTTPMethod: (NSString *)HTTPMethod;
声明语言: FBSDKGraphRequest.h
initWithGraphPath:parameters:tokenString:version:HTTPMethod:

Initializes a new instance.

参数描述
graphPath

The graph path (e.g., @"me").

parameters

The optional parameters dictionary.

tokenString

The token string to use. Specifying nil will cause no token to be used.

version

The optional Graph API version (e.g., @"v2.0"). nil defaults to [FBSDKSettings graphAPIVersion].

HTTPMethod

The optional HTTP method (e.g., @"POST"). nil defaults to @"GET".

- (instancetype)
initWithGraphPath: (NSString *)graphPath
parameters: (NSDictionary *)parameters
tokenString: (NSString *)tokenString
version: (NSString *)version
HTTPMethod: (NSString *)HTTPMethod
NS_DESIGNATED_INITIALIZER;
声明语言: FBSDKGraphRequest.h
setGraphErrorRecoveryDisabled:

If set, disables the automatic error recovery mechanism.

参数描述
disable

Whether to disable the automatic error recovery mechanism

- (void) setGraphErrorRecoveryDisabled:(BOOL)disable;
Discussion:

By default, non-batched FBSDKGraphRequest instances will automatically try to recover from errors by constructing a FBSDKGraphErrorRecoveryProcessor instance that re-issues the request on successful recoveries. The re-issued request will call the same handler as the receiver but may occur with a different FBSDKGraphRequestConnection instance. This will override [FBSDKSettings setGraphErrorRecoveryDisabled:].

声明语言: FBSDKGraphRequest.h
startWithCompletionHandler:

Starts a connection to the Graph API.

参数描述
handler

The handler block to call when the request completes.

- (FBSDKGraphRequestConnection *) startWithCompletionHandler:(FBSDKGraphRequestHandler)handler;
声明语言: FBSDKGraphRequest.h