JSON with not working url

[Shades of Chaos]

Hey all,

I am trying to write the contents of a .json file from the interent to a string. The contents all text. I am using

json = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:NULL];

But if the .json file currently isn't available then the app crashes with writing nothing in the console. Does anyone know how to determine before hand if the file is available or how to make it not crash.

Thanks

[dany_dev]

first thing, you can try to use

NSError *err;

json = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:&err];

if(err)
   NSLog(@"Error: %@", err);

if(json)
{
    //do things that involve json
}

however i recommend you to use NSURLConnection or ASIHTTPRequest to retrieve a string, you can find an example in section 4 here: WebService [How-To]

[Shades of Chaos]

Hey dany thanks for the response. I tried putting in the error code and it still didn't write anything to the console. But I used you webservice post and solved my problem.

Thank you