Asynchronouse HTTP Client using Netty

Async HTTP Client

An asynchronous HTTP client using Netty 4.x or greater. The distinguishing feature of an asynchronous HTTP client is the ability to concurrently execute multiple requests using a smaller number of threads than there are requests.

Another distinguishing feature is that the normal pattern of use is to provide a callback which will be called with the result of a response, rather than waiting for the response to be synchronously executed.

The API here is inspired a bit by Node.js' http module; it is designed to (mostly) avoid the Future pattern, which a number of similar libraries seem to be stuck on (the point of async code is not not block; if an asynchronous API is all about "here's a thing you can block on while we make an asynchronous call" then it has failed).

For details and example usage, see HttpClient.