Facebook Graph API - get a photos album ID

Question

I\'m writing an application that uploads a photo to facebook. I\'m not supplying an album ID so an album is created on behalf of my app.

My question is: how do I get

Answer 1

This issue has been bugging me for a while as well, but I think I have cracked the nut.

The album ID is hidden in the link value, so if you have a photo-post object from the Graph API, you can retrieve the Album ID like this:

NSString *link = [item valueForKey:@"link"];
NSString *album_id = nil;
NSRange fRange = [link rangeOfString:@"set=a."];
if(fRange.location != NSNotFound) {         
    NSInteger firstPos = fRange.location + 6;
    NSInteger endPos = [link rangeOfString:@"." options:NSLiteralSearch range:NSMakeRange(firstPos, 25)].location;
    album_id = [[link substringWithRange:NSMakeRange(firstPos, endPos - firstPos)] copy];
}

It could probably all be stripped down to one line of code, but I think this is more readable. For getting the album information use:

[facebook requestWithGraphPath:album_id andDelegate:delegate];

For getting all the photos in an album use:

[facebook requestWithGraphPath:[NSString stringWithFormat:@"%@/photos", album_id] andDelegate:delegate];

Hope this can help someone.