How to post object and get response in ios - ios

Question

In my app i need to post data to server and need to recieve response. But i am getting null value after posting data.Below is my full code. Thanks in advance.
{
NSString *post =[[NSString alloc] initWithFormat:#"%#%#%#%#%#",[self.username_reg text],[self.emailid_reg text],[self.phone_reg text],[self.password_reg text],[self.confirmpassword_reg text]];
NSLog(#"PostData: %#",post);
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
NSURL *url=[NSURL URLWithString:#"https://servlet/URL"];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%lu", (unsigned long)[postData length]];
[request setURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
NSMutableDictionary *postDict = [[NSMutableDictionary alloc] init];
[postDict setValue:_username_reg.text forKey:#"UserName"];
[postDict setValue:_emailid_reg.text forKey:#"Email"];
[postDict setValue:_phone_reg.text forKey:#"Phone"];
[postDict setValue:_password_reg.text forKey:#"Pass"];
[postDict setValue:_confirmpassword_reg.text forKey:#"ConPass"];
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:postDict options:0 error:nil];
// Checking the format
NSString *urlString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
// Convert your data and set your request's HTTPBody property
NSString *stringData = [[NSString alloc] initWithFormat:#"jsonRequest=%#", urlString];
NSData *requestBodyData = [stringData dataUsingEncoding:NSUTF8StringEncoding];
request.HTTPBody = requestBodyData;
NSLog(#"bcbc:%#",requestBodyData);
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError)
{
NSString* newStr = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSLog(#"new:%#",newStr);
NSError *error;
NSDictionary *json_Dict = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSLog(#"%#",json_Dict);
}];
}
The Request given format is:
{"UserName":"sony","Email":"ronyv#example.in","Phone":"7358700457","Pass":"sony88","ConPass":"sony88"}
The response need to get:
{"responseHeader":{"responseCode":0,"responseMessage":"Success"}}

Answer 1

Try this code:
NSData* jsonData = [NSJSONSerialization dataWithJSONObject:#"your dictionary name" options:NSJSONWritingPrettyPrinted error:&error];
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSLog(#"jsonString: %#", jsonString);
NSData *requestData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
NSMutableData *body = [NSMutableData data];
[body appendData:requestData];
NSString *postLength = [NSString stringWithFormat:#"%lu", (unsigned long)[body length]];
NSURL *url = [NSURL URLWithString:#"your url"];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
[request setHTTPMethod:#"POST"];
[request setHTTPShouldHandleCookies:NO];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-type"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:body];
NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
[[session dataTaskWithRequest:request
completionHandler:^(NSData *data,
NSURLResponse *response,
NSError *error)
{
if (error) {
failure(error);
} else {
NSDictionary * jsonDic =[NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
NSLog(#"%#",jsonDic);
if ([jsonDic objectForKey:#"error"]) {
}
else{
}
}
}] resume];