Calling Facebook APIs with the 3.0 SDK

gistfile1.m

// #1: Graph API: /me
- (void)requestMe {
    [FBRequestConnection startForMeWithCompletionHandler:^(FBRequestConnection *connection,
                                                           NSDictionary<FBGraphUser> *me,
                                                           NSError *error) {
        if(error) {
            [self printError:@"Error requesting /me" error:error];
            return;
        }
        
        NSLog(@"My name is %@", me.name);
    }];
}

// #2: Graph API: /me/friends
-(void)requestFriends {
    [FBRequestConnection startForMyFriendsWithCompletionHandler:^(FBRequestConnection *connection, id data, NSError *error) {
        if(error) {
            [self printError:@"Error requesting /me/friends" error:error];
            return;
        }
        
        NSArray* friends = (NSArray*)[data data];
        NSLog(@"You have %d friends", [friends count]);
    }];
}

// #3: Graph API: /me/albums && /{albums[0]}/photos
-(void)requestAlbums {
    [FBRequestConnection startWithGraphPath:@"/me/albums"
                completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                    if(error) {
                        [self printError:@"Error requesting /me/albums" error:error];
                        return;
                    }

                    NSArray* collection = (NSArray*)[result data];
                    NSLog(@"You have %d albums", [collection count]);

                    NSDictionary* album = [collection objectAtIndex:0];
                    NSLog(@"Album ID: %@", [album objectForKey:@"id"]);

                    // /albums[0]/photos
                    NSString* photos = [NSString stringWithFormat:@"%@/photos", [album objectForKey:@"id"]];
                    [FBRequestConnection startWithGraphPath:photos
                                completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                                    NSArray* photos = (NSArray*)[result data];
                                    NSLog(@"You have %d photo(s) in the album %@",
                                          [photos count],
                                          [album objectForKey:@"name"]);
        }];
    }];
}

// #4: Graph API: /me/groups
-(void)requestGroups {
    [FBRequestConnection startWithGraphPath:@"/me/groups" completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
        if(error) {
            [self printError:@"Error requesting /me/groups" error:error];
            return;
        }
        
        NSArray* collection = (NSArray*)[result data];
        NSLog(@"You have %d groups", [collection count]);
    }];
}

// #5: FQL via Graph API "SELECT uid, name, pic_square FROM user WHERE uid = me()"
-(void)requestMeWithFQL {
    NSString* meFql = @"SELECT uid, name, pic_square FROM user WHERE uid = me()";
    [FBRequestConnection startWithGraphPath:@"/fql"
                       parameters:@{ @"q" : meFql }
                       HTTPMethod:@"GET"
                completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                    if(error) {
                        [self printError:@"Error requesting me via FQL" error:error];
                        return;
                    }
                    
                    if([[result objectForKey:@"data"] count] > 0) {
                        // {data: [{user1}, {user2}]}
                        NSLog(@"FQL name: %@", [result objectForKey:@"data"][0][@"name"]);
                    } else {
                        NSLog(@"No users found");
                    }
    }];
}

// #6: Graph API: batch request for /me, /me/groups, /me/albums 
-(void)requestWithBatch {
    FBRequestConnection* conn = [[FBRequestConnection alloc] init];
    [conn addRequest:[FBRequest requestForMe] completionHandler:^(FBRequestConnection *connection, NSDictionary<FBGraphUser> *me, NSError *error) {
        if(error) {
            [self printError:@"Error requesting /me via batch" error:error];
            return;
        }
        
        NSLog(@"Batched: My name is %@", me.name);
    }];
    FBRequest* groups = [FBRequest requestForGraphPath:@"/me/groups"];
    [conn addRequest:groups completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
        if(error) {
            [self printError:@"Error requesting /me/groups via batch" error:error];
            return;
        }

        if([[result objectForKey:@"data"] count] > 0) {
            NSLog(@"You have %d groups", [[result objectForKey:@"data"] count]);
        } else {
            NSLog(@"No groups returned");
        }
    }];
    FBRequest* albums = [[FBRequest alloc] initWithSession:[FBSession activeSession]
                                                 graphPath:@"/me/albums"
                                                parameters:@{@"fields": @"name,id"}
                                                HTTPMethod:@"GET"];
    [conn addRequest:albums completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
        if(error) {
            [self printError:@"Error requesting /me/albums via batch" error:error];
            return;
        }
        
        NSArray* collection = (NSArray*)[result data];
        NSLog(@"You have %d albums", [collection count]);
    }];
    [conn start];
}

// #7: Graph API: post a status.  
-(void)postStatusAsHelper {
    [FBRequestConnection startForPostStatusUpdate:@"Hello World?" completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
        if(error) {
            [self printError:@"Error posting status using static" error:error];
            return;
        }

        NSLog(@"Post ID: %@", result[@"id"]);
    }];
}

// #8: Graph API: post an Open Graph action
-(void)postAction {
    id<BirdSightingAction> action = (id<BirdSightingAction>)[FBGraphObject graphObject];
    action.bird = @"http://samples.ogp.me/377812905594754";

    FBRequest* newAction = [[FBRequest alloc]initForPostWithSession:[FBSession activeSession] graphPath:@"/me/birdsighting:see" graphObject:action];

    FBRequestConnection* conn = [[FBRequestConnection alloc] init];
    [conn addRequest:newAction completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
        if(error) {
            [self printError:@"Error posting action" error:error];
            return;
        }

        NSLog(@"Bird sighting action ID: %@", result[@"id"]);
    }];
    [conn start];
}

// #9: FQL via Graph API
-(void)requestFriendsWithFQL {
    NSString* fql =
        @"{"
        @"'allfriends':'SELECT uid2 FROM friend WHERE uid1=me()',"
        @"'frienddetails':'SELECT id, name, url, pic FROM profile WHERE id in (SELECT uid2 FROM #allfriends)',"
        @"}";

    [FBRequestConnection startWithGraphPath:@"/fql"
                                 parameters:@{ @"q" : fql}
                                 HTTPMethod:@"GET"
                          completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                              if(error) {
                                  [self printError:@"Error reading friends via FQL" error:error];
                                  return;
                              }
                              
                              NSMutableArray* friends = [[NSMutableArray alloc]init];
                              
                              NSArray* friendIds = ((NSArray*)[result data])[0][@"fql_result_set"];
                              NSArray* friendInfo = ((NSArray*)[result data])[1][@"fql_result_set"];
                              
                              for(int i = 0; i < [friendIds count]; i++) {
                                  
                                  NSDictionary* friend = [[NSDictionary alloc]initWithObjectsAndKeys:
                                                          [[friendInfo objectAtIndex:i] objectForKey:@"id"], @"id",
                                                          [[friendInfo objectAtIndex:i] objectForKey:@"name"], @"name",
                                                          [[friendInfo objectAtIndex:i] objectForKey:@"pic"], @"pic",
                                                          [[friendInfo objectAtIndex:i] objectForKey:@"url"], @"url", nil];
                                  
                                  [friends addObject:friend];
                              }
                              
                              int count = [friends count];
                              
                              NSLog(@"You have %d friends", count);
                              for(int i = 0; i < [friends count]; i++) {
                                  NSLog(@"Name: %@", [[friends objectAtIndex:i] objectForKey:@"name"]);
                              }
                          }];
}

// #10: Shared error handler
-(void)printError:(NSString*)message error:(NSError*)error {
    if(message) {
        NSLog(@"%@", message);
    }

    // works for 1 FBRequest per FBRequestConnection
    int userInfoCode = [error.userInfo[@"com.facebook.FBiOSSDK:ParsedJSONResponseKey"][0][@"body"][@"error"][@"code"] integerValue];
    NSString* userInfoMessage = error.userInfo[@"com.facebook.FBiOSSDK:ParsedJSONResponseKey"][0][@"body"][@"error"][@"message"];

    // works for batches of > 1 FBRequest per FBRequestConnection
//    int userInfoCode = [error.userInfo[@"com.facebook.FBiOSSDK:ParsedJSONResponseKey"][@"body"][@"error"][@"code"] integerValue];
//    NSString* userInfoMessage = error.userInfo[@"com.facebook.FBiOSSDK:ParsedJSONResponseKey"][@"body"][@"error"][@"message"];

    // outer error
    NSLog(@"Error: %@", error);
    NSLog(@"Error code: %d", error.code);
    NSLog(@"Error message: %@", error.localizedDescription);

    // inner error
    NSLog(@"Error code: %d", userInfoCode);
    NSLog(@"Error message: %@", userInfoMessage);
    
    if(userInfoCode == 2500) {
        UIAlertView* view = [[UIAlertView alloc]initWithTitle:@"Facebook"
                                                      message:@"You're not logged in."
                                                     delegate:nil
                                            cancelButtonTitle:@"OK"
                                            otherButtonTitles:nil];
        dispatch_async(dispatch_get_main_queue(), ^{
            [view show];
        });
    }
}

the call get albums with permision "user_photos" returns nil always. does anyone got this working? or it is still an sdk bug?