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Issue posting data to web server with NSMutableURLRequest

-(void)starting {

NSURL *url = [NSURL

URLWithString:@"http:myurl/myfile.txt"];

NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];

urlConnection = [[NSURLConnection alloc] initWithRequest:urlRequest delegate:self]; //Calling NSURLConnection delegate methods

}

       

NSString *someString = @"Hello World";

NSData* theData=[someString dataUsingEncoding:NSUTF8StringEncoding];

 

NSURL *someUrl = [NSURL URLWithString:@"http://myurl/myfile.txt"];

       

NSString *postLength = [NSString stringWithFormat:@"%d", [theData length]];

 

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];

[request setURL:someUrl];

[request setHTTPMethod:@"POST"];

[request setValue:postLength forHTTPHeaderField:@"Content-Length"];

[request setValue:@"application/x-www-form-urlencoded charset=utf-8" forHTTPHeaderField:@"Content-Type"];    

[request setHTTPBody:theData];

       

[NSURLRequest setAllowsAnyHTTPSCertificate:YES forHost:[someUrl host]];

       

NSError *error;

NSURLResponse *response;

NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];

NSString *data=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];

       

if ([data length] == 0) {

 

    UIAlertView *dataLengthNoneAlert = [[UIAlertView alloc] initWithTitle:@"No data" message:@"There is no data on the server" delegate:nil cancelButtonTitle:@"Dismiss" otherButtonTitles:nil, nil];

 

    [dataLengthNoneAlert show];

 

}

       

else {

 

    NSLog(data);

 

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Retrieved data" message:data delegate:nil cancelButtonTitle:@"Dimiss" otherButtonTitles:nil, nil];

 

    [alert show];

 

}