Facebook Batch Photo Upload iOS - ios

Question

I am having some trouble trying to get the Facebook iOS SDK to batch upload photos. Currently I can upload them one by one, but I would like to batch the requests if possible. I have read this post over and over along with the fb batch docs. Here is what I have thus far.
Facebook *facebook = [(AppDelegate*)[[UIApplication sharedApplication] delegate] facebook];
NSData *imageData = UIImagePNGRepresentation([imgs objectAtIndex:0]);
NSString *jsonRequest1 = [NSString stringWithFormat:#"{ \"method\": \"POST\", \"relative_url\": \"me/photos\", \"attached_files\": \"file1\" }"];
NSString *jsonRequest2 = [NSString stringWithFormat:#"{ \"method\": \"POST\", \"relative_url\": \"me/photos\", \"attached_files\": \"file2\" }"];
NSString *jsonRequestsArray = [NSString stringWithFormat:#"[ %#, %# ]", jsonRequest1, jsonRequest2];
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:jsonRequestsArray,#"batch",imageData,#"file1",imageData,#"file2" nil];
I am mapping the imageData to the key it is looking for, but I get this response every time.
{
body = "{\"error\":{\"message\":\"File batch has not been attached\",\"type\":\"GraphBatchException\"}}";
code = 400;
headers = (
{
name = "WWW-Authenticate";
value = "OAuth \"Facebook Platform\" \"invalid_request\" \"File batch has not been attached\"";
},
{
name = "HTTP/1.1";
value = "400 Bad Request";
},
{
name = "Cache-Control";
value = "no-store";
},
{
name = "Content-Type";
value = "text/javascript; charset=UTF-8";
}
);
},
{
body = "{\"error\":{\"message\":\"File file2 has not been attached\",\"type\":\"GraphBatchException\"}}";
code = 400;
headers = (
{
name = "WWW-Authenticate";
value = "OAuth \"Facebook Platform\" \"invalid_request\" \"File file2 has not been attached\"";
},
{
name = "HTTP/1.1";
value = "400 Bad Request";
},
{
name = "Cache-Control";
value = "no-store";
},
{
name = "Content-Type";
value = "text/javascript; charset=UTF-8";
}
);
}
)
Any help is very much appreciated.

Answer 1

Have you tried using the Social framework for iOS 6 to share photos? It allows you to add all the photos and share them.
- (IBAction)postToFacebook:(id)sender {
if([SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook]) {
SLComposeViewController *controller = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];
[controller setInitialText:#"First post from my iPhone app"];
[controller addURL:[NSURL URLWithString:#"http://www.jinibot.com"]];
[controller addImage:[UIImage imageNamed:#"socialsharing-facebook-image.jpg"]];
//add as many images as you want
[controller addImage:[UIImage imageNamed:#"socialsharing-facebook-image.jpg"]];
[controller addImage:[UIImage imageNamed:#"socialsharing-facebook-image.jpg"]];
[controller addImage:[UIImage imageNamed:#"socialsharing-facebook-image.jpg"]];
[self presentViewController:controller animated:YES completion:Nil];
}
}

Answer 2

Try with this.
Please notice that Facebook limit the number of requests which can be in a batch to 50.
-(void)uploadBulkPhotosToAlbum:(NSArray *)photoArray albumId:(NSString *)albumId
FBRequestConnection *connection = [[FBRequestConnection alloc] init];
NSString *graphPath = [NSString stringWithFormat:#"%#/photos",albumId];
NSMutableString *jsonFormat = [[NSMutableString alloc] init];
[jsonFormat setString:#"["];
for (int i = 0; i < photoArray.count; i++)
{
if (i != 0)
{
[jsonFormat appendString:#","];
}
NSString *fileName = [NSString stringWithFormat:#"file%d",i];
NSString *jsonRequest = [NSString stringWithFormat:#"{ \"method\": \"POST\", \"relative_url\": \"%#\", \"attached_files\": \"%#\" }",graphPath,fileName];
[jsonFormat appendString:[NSString stringWithFormat:#" %#",jsonRequest]];
}
[jsonFormat appendString:#" ]"];
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:jsonFormat,#"batch",nil];
for (int i = 0; i < photoArray.count; i++)
{
NSString *fileName = [NSString stringWithFormat:#"file%d",i];
NSData *data = UIImagePNGRepresentation([photoArray objectAtIndex:i]);
[params setObject:data forKey:fileName];
}
FBRequest *request = [FBRequest requestWithGraphPath:#"me" parameters:params HTTPMethod:#"POST"];
[connection addRequest:request completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
if (!error)
{
[self resetViewAfterUpload:result];
}
else
{
[MBProgressHUD hideHUDForView:self.navigationController.view animated:YES];
NSLog(#"Photo uploaded failed :( %#",error.userInfo);
[[[UIAlertView alloc] initWithTitle:#"Error occurred!!" message:#"Some error occured while uploading." delegate:nil cancelButtonTitle:#"Dismiss" otherButtonTitles:nil] show];
}
}];
[connection start];
}

Answer 3

With the new Facebook SDK (3.0) try something like this:
FBRequestConnection *connection = [[FBRequestConnection alloc] init];
FBRequest *request1 = [FBRequest requestForUploadPhoto:image1];
[connection addRequest:request1
completionHandler:
^(FBRequestConnection *connection, id result, NSError *error) {
//handle error/success
}
];
FBRequest *request2 = [FBRequest requestForUploadPhoto:image2];
[connection addRequest:request2
completionHandler:
^(FBRequestConnection *connection, id result, NSError *error) {
//handle error/success
}
];
[connection start];

Answer 4

How about using an NSOperationQueue to queue up all the upload requests?

Answer 5

Here is function I have used in one of our project by Facebook SDK 3.x
-(void)postOnFacebookWall : (id )response{
NSString *strPost = [NSString stringWithFormat:#"Group Name:%#",[[response valueForKey:#"GroupDetail"] valueForKey:#"group_name"]];
NSString *strUrl = [NSString stringWithFormat:#"%#",[[response valueForKey:#"GroupDetail"] valueForKey:#"group_picture_path"]];
NSURL *urlToShare = [NSURL URLWithString:strUrl];
UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:urlToShare]];
FBAppCall *appCall = [FBDialogs presentShareDialogWithLink:urlToShare
name:#"Heook"
caption:#"string"
description:#"The 'Has."
picture:urlToShare
clientState:nil
handler:^(FBAppCall *call, NSDictionary *results, NSError *error) {
if (error) {
NSLog(#"Error: %#", error.description);
} else {
NSLog(#"Success!");
}
}];
if (!appCall) {
// Next try to post using Facebook's iOS6 integration
BOOL displayedNativeDialog = [FBDialogs presentOSIntegratedShareDialogModallyFrom:self
initialText:strPost
image:image
url:nil
handler:nil];
if (!displayedNativeDialog) {
[self performPublishAction:^{
// NSString *message = [NSString stringWithFormat:#"Group Name:%#\nGroup Image:%#\n",[[response valueForKey:#"GroupDetail"] valueForKey:#"group_name"],[[response valueForKey:#"GroupDetail"] valueForKey:#"group_picture_path"]];
[FBRequestConnection startForPostStatusUpdate:strPost
completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
[self showAlert:#"Group shared on facebook" result:result error:error];
}];
}];
}
}
}