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POHow to send json data in the Http request using NSURLRequest
 

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  1. POHow to send json data in the Http request using NSURLRequest
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    <p>I'm new to objective-c and I'm starting to put a great deal of effort into request/response as of recent. I have a working example that can call a url (via http GET) and parse the json returned.</p> <p>The working example of this is below</p> <pre><code>- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { [responseData setLength:0]; } - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [responseData appendData:data]; } - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { NSLog([NSString stringWithFormat:@"Connection failed: %@", [error description]]); } - (void)connectionDidFinishLoading:(NSURLConnection *)connection { [connection release]; //do something with the json that comes back ... (the fun part) } - (void)viewDidLoad { [self searchForStuff:@"iPhone"]; } -(void)searchForStuff:(NSString *)text { responseData = [[NSMutableData data] retain]; NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.whatever.com/json"]]; [[NSURLConnection alloc] initWithRequest:request delegate:self]; } </code></pre> <p>My first question is - will this approach scale up? Or is this not async (meaning I block the UI thread while the app is waiting for the response)</p> <p>My second question is - how might I modify the request part of this to do a POST instead of GET? Is it simply to modify the HttpMethod like so?</p> <pre><code>[request setHTTPMethod:@"POST"]; </code></pre> <p>And finally - how do I add a set of json data to this post as a simple string (for example)</p> <pre><code>{ "magic":{ "real":true }, "options":{ "happy":true, "joy":true, "joy2":true }, "key":"123" } </code></pre> <p>Thank you in advance</p>
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    1. COHere is a tutorial: http://mobileorchard.com/tutorial-json-over-http-on-the-iphone/
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