Parsing Flickr's Invalid Json

Flickr's api returns invalid Json. The two main iOS Json parsers barf on any json from Flickr.

Turns out Flickr escapes single quotes (') and apparently this isn't allowed. The Json parser error message is not helpful for figuring this out.

By train and error I figured out doing a simple search to remove the backslashes before single quotes gets around the issue.

Here is the code I used to do so.

str = [str stringByReplacingOccurrencesOfString:@"\\'" withString:@"'"];

Oh yeah one more thing, here's the easy flickr url for getting images:

http://api.flickr.com/services/feeds/photos_public.gne?tags=san+francisco,bicycle,biking,golden+gate+bridge&tagmode=all&format=json