Question

I’m trying to use NSURLRequest and NSURLConnection to get a small bit of data (around 50 bytes) from a web API. I’m pretty sure the code below is right, but how do I actually get the received data and detect when its all downloaded?

NSURLRequest *req = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://google.com"] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:20.0];
NSURLConnection *con = [[NSURLConnection alloc] initWithRequest:req delegate:self];

Answer 1

you set yourself as the delegate and the connection will send you calls as it goes.
example:
http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/URLLoadingSystem/Tasks/UsingNSURLConnection.html