Handling a String From a Web API Service in Object-C - objective-c

Question

I have a simple Web API Service POST
// POST api/values
public string Post(SimpleRequest request)
{
if (request == null || string.IsNullOrEmpty(request.Field1) || string.IsNullOrEmpty(request.Password))
return "Something is missing.";
return string.Format("Success. You sent {0}!", request.Field1);
}
Which is consumed in an a object-c method (for an iphone project):
- (IBAction)doSomethingButtonWasPressed:(id)sender {
NSString * urlString = #"http://192.168.0.XXX/api/Test";
NSDictionary *postDict = [[NSDictionary alloc] initWithObjectsAndKeys:
_field1.text, #"Field1",
_field2.text, #"Field2",
nil];
NSURL *url=[NSURL URLWithString:[urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
NSData *req= [NSJSONSerialization dataWithJSONObject:postDict options:NSJSONWritingPrettyPrinted error:nil];
NSMutableURLRequest *request=[NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];//
[request setHTTPBody:req];
NSURLResponse* response;
NSError* error = nil;
NSData* responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
NSLog(#"The output is:%#",responseString);
UIAlertView *alert = [[UIAlertView alloc] initWithTitle: #"Result"
message:responseString
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alert show];
}
It all works, except the result has "quotes" around it. I feel like maybe I'm missing a decoding step?

Answer 1

It's possible the service is returning JSON, like {"foo"} that would appear as a quoted string. Try interpreting the data as JSON with ...
NSError *error;
id result = [NSJSONSerialization JSONObjectWithData:responseData options:nil error:&error];
NSLog(#"result is %#, error is %#", result, error);