IOS 7 how to print the url response data - ios

Question

I am trying to call a web service. I tried this
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"http://192.168.75.1:8082/projectname/public/tests"]];
NSURLSessionConfiguration *configuration = [ NSURLSessionConfiguration ephemeralSessionConfiguration];
NSURLSession *session = [NSURLSession sessionWithConfiguration:configuration];
NSURLSessionDownloadTask *task = [session downloadTaskWithRequest:request completionHandler:^(NSURL *localFile, NSURLResponse *response, NSError *error) {
if(!error){
NSLog(#"no error");
}else{
NSLog(#"error");
}
}];
[task resume];
}
as you see there are two nslog statements. I got the no error one.
when I call that web service from my safari, I got a simple string which is index printed in the browser, how can I see that string in my xcode please?
Thanks

Answer 1

you can implement the delegate method
- (void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTask *)downloadTask didFinishDownloadingToURL:(NSURL *)location;
EDIT
Try This
NSHTTPURLResponse *response = nil;
NSError *error = nil;
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:YOUR URL]];
NSData *respData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSLog(#"~~~~~ Status code: %d", [response statusCode]);
//Print your recived data here..
NSString *str = [[NSString alloc] initWithData:respData encoding:NSUTF8StringEncoding];
NSLog(#"str: %#", str);

Answer 2

You can use the delegate methods. When a NSURLSessionDownlaodTask is completed, it's delegates will be called if your class confirmed to it.
-(void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTask *)downloadTask didFinishDownloadingToURL:(NSURL *)location
you can get your response by parsing the data in that delegate method. It will tell you the location that the URLSession stores the downloaded result.

Answer 3

what I would do If I were you is:
NOTE: it is based on you said you receive a simple string only from your back-end. if that is not a simple string, you may need to revise the –connectionDidFinishLoading: method's body.
.h
#interface UIRandomViewController : UIViewController {
NSURLConnection *_urlConnection;
NSMutableData *_receivedData;
// ...
}
// ...
#end
.m
#implementation UIRandomViewController {
// ...
- (void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
NSURLRequest *_request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"http://192.168.75.1:8082/projectname/public/tests"]];
_urlConnection = [[NSURLConnection alloc] initWithRequest:_request delegate:self startImmediately:TRUE];
// ...
}
// ...
#pragma mark - <NSURLConnectionDelegate>
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
_receivedData = nil;
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
if (_receivedData == nil) _receivedData = [NSMutableData dataWithData:data];
else [_receivedData appendData:data];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
NSString *_receivedString = [[NSString alloc] initWithData:_receivedData encoding:NSUTF8StringEncoding];
// hello beautiful...
NSLog(#"received data : %#", _receivedString);
}
}
#end