How to Post xml within Json object in NSURLConnection? - iphone

Question

Hi I want to post XML data within JSON Object.
This is the way i post
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
NSString *postString = [NSString stringWithFormat:#"{\"UserId\":\"%#\",\"UserDataXML\":\"%#\"}",#"USRfa9210bad85165d5",#"<Root Bookmark=\"Page1\">\\u000d\\u000a <Name>MyName<\Name>\\u000d\\u000a <Address>MyAddress<\ Address></Root>"];
NSData *requestData = [postString dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/xml; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[request setValue:[NSString stringWithFormat:#"%d", [requestData length]] forHTTPHeaderField:#"Content-length"];
[request setHTTPBody:requestData];
In connectionDidFinishLoading _responseData is come,But responsedict is getting Null.
Where i am going wrong?
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSLog(#"_responseData %#",_responseData);
NSString *responseString = [[NSString alloc] initWithData:_responseData encoding:NSUTF8StringEncoding];
NSError *error;
NSData *jsonData = [responseString dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *responseDict = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&error];
NSLog(#"responseDict %#",responseDict);
}

Answer 1

First of all, you must escape your JSON before use.
And then,
(1) If the server is only responding with a form-data, a post data must be a pair of key and value.
NSString *postString = [NSString stringWithFormat:#"UserId=%#&UserDataXML=%#",
#"USRfa9210bad85165d5",
#"<Root Bookmark=\\\"Page1\\\">\\u000d\\u000a<Name>MyName</Name>\\u000d\\u000a<Address>MyAddress</Address></Root>"];
(2) If the server is only responding with JSON, Content-Type should be set to "application/json" and then,
NSString *postString = [NSString stringWithFormat:#"{\"UserId\":\"%#\", \"UserDataXML\":\"%#\"}",
#"USRfa9210bad85165d5",
#"<Root Bookmark=\\\"Page1\\\">\\u000d\\u000a<Name>MyName</Name>\\u000d\\u000a<Address>MyAddress</Address></Root>"];
BTW, have you checked the variable '_responseData'? I think it's also empty.