HTTP servers

Net’s HTTP server facade delivers something familiar to users with prior exposure to ring and jet.

It differs in the following important ways:

• The body of the ring request passed to handlers may be a core.async channel, in which case it will produce a list of chunks for the body.
• Handlers may return a core.async channel, in which case it is expected to produce a single value: the response map.
• Whether it was obtained directly or through a channel, the :body key within a response map may either be a payload to be sent out or a core.async channel, in which case chunks will be read from it and sent out.

Here is the simplest possible use of the interface:

(ns server.http
  (:require [net.http.server :as http]))

(defn handler
  [request]
  {:status  200
   :headers {"Content-Type"   "text/plain"
             "Content-Length" "6"}
   :body    "hello\n"})

(defn -main
  [& _]
  (http/run-server {:ring-handler handler}))