NSLog(@"WEB SERVICE CALLED!");

    NSURL *aUrl = [NSURL URLWithString:@"xxx"];
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:aUrl
                                                           cachePolicy:NSURLRequestUseProtocolCachePolicy
                                                       timeoutInterval:60.0];

    [request setHTTPMethod:@"POST"];
    NSString *postString = @"grant_type=password&username=xxx&password=xxx";
    [request setHTTPBody:[postString dataUsingEncoding:NSUTF8StringEncoding]];

    NSURLConnection *connection= [[NSURLConnection alloc] initWithRequest:request
                                                                 delegate:self];

    if(connection) {
        NSLog(@"Connection Successful");
    } else {
        NSLog(@"Connection could not be made");
    }
}