isValidJSONObject not working as expected

Question

After testing, I can only get [NSJSONSerialization isValidJSONObject:] to return a positive on JSON data that I have already parsed with [NSJSONSerializat

Answer 1

isValidJSONObject tests if a JSON object (a NSDictionary or NSArray) can be successfully converted to JSON data.

It is not for testing if an NSData object contains valid JSON data. To test for valid JSON data you just call

[NSJSONSerialization JSONObjectWithData:data ...]

and check if the return value is nil or not.