Question

I’m following along with this useful looking answer to my question.

It seems to be working, but here are two questions I have:

1. How do I detect an HTTP error? The didFailWithError method doesn’t seem to be getting called?

UPDATE: It considers any response a success. So I guess I have to handle HTTP errors in the didRecieveResponse method, but besides telling the user there was an error when I hit an HTTP error, do I need stop the connection somehow? And/or cleanup?

2. I see this line in the answer:

[[NSURLConnection alloc] initWithRequest:request delegate:self]; 

Do I need to release that? Where, how, when?

Answer 1

You will get the status code returned in the didReceiveResponse

-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{     NSHTTPURLResponse *httpResponse;     httpResponse = (NSHTTPURLResponse *)response;     int statusCode = [httpResponse statusCode];     //statusCode will be the http code returned like 201,500  } 

For stopping the connection, use a class-level variable for the connection. The best way to go about it would be create a wrapper which sends requests and receives response. Make your viewcontroller a delegate of this class and whenever the didReceiveResponse gives an error status code, call the appropriate method of the delegate and stop the connection.

Here’s a good wrapper class example

http://kosmaczewski.net/projects/objective-c-rest-client/