Re: JSON validator for Xcode
Re: JSON validator for Xcode
- Subject: Re: JSON validator for Xcode
- From: Alex Zavatone <email@hidden>
- Date: Tue, 06 Mar 2012 15:52:35 -0500
I was under the assumption - maybe I can't read documentation - that IsValidJSONObject would check to see if the Foundation object could be turned into a JSON object.
From the docs:
isValidJSONObject:
Returns a Boolean value that indicates whether a given object can be converted to JSON data.
I was hoping to scan the results of a URL call to see if the returned data was legit before trying to convert it.
Thanks for clearing this up for me.
On Mar 6, 2012, at 3:46 PM, Fritz Anderson wrote:
> On 6 Mar 2012, at 1:59 PM, Alex Zavatone wrote:
>
>> Yeah, I've got the JSON down to this:
>>
>> [1]
>>
>> and
>> {"A":1}
>>
>> And the code:
>> BOOL isTurnableToJSON = [NSJSONSerialization isValidJSONObject: responseData];
>> NSLog(@"Is legit for JSON: %d", isTurnableToJSON );
>> NSLog(@"Is legit for JSON: %@", isTurnableToJSON ? @"YES" : @"NO"); // this is how we handle a bool :/
>
> Wait — am I to understand you are passing a JSON string to isValidJSONObject:? I can't make sense of your citing JSON strings as problem cases otherwise, but in your original message you talk about _emitting_ JSON.
>
> The method goes the other way around. It determines whether a tree of Foundation objects can be translated _into_ JSON. NSJSONSerialization won't accept anything but container objects, so passing a string won't validate even fortuitously.
>
> The method names are inexpressive.
>
> — F
>
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