http response without content

[tanimasaini]

Hi,

I am using this client to make http requests. There are cases in which I am only interested in headers and not in content of the response. I dont want to use "head" method as not all servers support this methis. I want to use "get" method but once I get the headers I dont want to receive content from the server. Is it possible with this library or any pointers how it can be done using netty.

Thanks & Regards,
Tanima

[timboudreau]

You'll want something like this. It's slightly awkard because you need a reference to the ResponseFuture inside the receiver (maybe there should a way for the receiver to call an instance method to cancel), but you would do it like this:

        final AtomicReference<ResponseFuture> futureRef = new AtomicReference<>();

        futureRef.set(client.get().setURL("http://foo.example").on(StateType.HeadersReceived, new Receiver<HttpHeaders>() {

            @Override
            public void receive(HttpHeaders object) {
                // do something with the headers
                futureRef.get().cancel();
            }

        }).execute());

You may want to override the Receiver's onFail() and onFail(Exception) methods to be notified if a connection cannot be opened or is unexpectedly closed by the server.