(IOS) HTTP PUT JSON

Demonstrates how to send a JSON PUT and get the JSON response body.

Download: Chilkat IOS (IPhone) Objective-C Libraries

NSMutableString *strOutput = [NSMutableString stringWithCapacity:1000];

CkoHttpRequest *req = [[[CkoHttpRequest alloc] init] autorelease];
CkoHttp *http = [[[CkoHttp alloc] init] autorelease];

BOOL success;

//  Any string unlocks the component for the 1st 30 days.
success = [http UnlockComponent: @"Anything for 30-day trial"];
if (success != YES) {
    [strOutput appendString: http.LastErrorText];
    [strOutput appendString: @"\n"];
    self.mainTextField.stringValue = strOutput;
    return;
}

//  The PUT request to be sent will look like this:
//  
PUT /request HTTP/1.1
Content-Type: application/jsonrequest
Cookie: JSESSIONID=1234
Content-Encoding: identity
Host: json.penzance.org
Accept: application/jsonrequest
Accept-Encoding:
Content-Length: 72

{"user":"doctoravatar@penzance.com","forecast":7,"t":"vlIj","zip":94089}


//  First, remove default header fields that would be automatically
//  sent.  (These headers are harmless, and shouldn't need to
//  be suppressed, but just in case...)
http.AcceptCharset = @"";
http.UserAgent = @"";
http.AcceptLanguage = @"";

//  Suppress the Accept-Encoding header by disallowing
//  a gzip response:
http.AllowGzip = NO;

//  If a Cookie needs to be added, it may be added by calling
//  AddQuickHeader:
[http AddQuickHeader: @"Cookie" value: @"JSESSIONID=1234"];

//  Add the Content-Encoding: identity header.
[http AddQuickHeader: @"Content-Encoding" value: @"identity"];

//  Modify the default "Accept" header:
http.Accept = @"application/jsonrequest";

NSString *jsonText;
jsonText = @"{\"user\":\"doctoravatar@penzance.com\",\"forecast\":7,\"t\":\"vlIj\",\"zip\":94089}";

//  To use SSL/TLS, simply use "https://" in the URL.

//  IMPORTANT: Make sure to change the URL, JSON text,
//  and other data items to your own values.  The URL used
//  in this example will not actually work.

NSString *responseBody;
responseBody = [http PutText: @"http://json.penzance.org/request" textData: jsonText charset: @"utf-8" contentType: @"application/jsonrequest" md5: NO gzip: NO];
if (responseBody == nil ) {
    [strOutput appendString: http.LastErrorText];
    [strOutput appendString: @"\n"];
}
else {
    //  Display the JSON response.
    [strOutput appendString: responseBody];
    [strOutput appendString: @"\n"];

}



self.mainTextField.stringValue = strOutput;