async http non-block get/post request pool?

[bethebest0622]

I need a function like this:

void http_get(const std::string & url, std::function<void<const rapidjson::Value &>> f) {
}

I need the function return immediately, and handle the return json when the server send json return back.

it's a streamed request, sometimes there are 10 request in the pool at the same time. I want it finished as quick as possible.

could you let me know which part of drogon i should pay attention to achieve this?