How to build clojure application with ring server

clojure, jar, leiningen, ring

Solution

Regarding to

:main words.play

I advice you to implement `-main` function in `words.play` something like

(defn -main [& args]
  (case (first args)
    "server1" (do (println "Starting server1") (start-server1))
    "server2" (do (println "Starting server2") (start-server2))
    (println "Enter server name, pls")))

Note, that `:gen-class` is necessary in namespace definition:

(ns words.play
    (:gen-class))

Implementation for `start-server1` and `start-server2` should depend on concrete frameworks: `(run-jetty ...)` for ring, `(start-http-server ...)` for aleph and so on (you can find more info in relative documentation).

Usage:

lein uberjar
## to start first server
java -jar my-project-1.0.0-SNAPSHOT-standalone.jar server1
## to start second one
java -jar my-project-1.0.0-SNAPSHOT-standalone.jar server2

Problem

I got clojure project with ring library in it. This is project.clj: ``` (defproject words "1.0.0-SNAPSHOT" :description "Websocket handler for sessions" :dependencies [[org.clojure/clojure "1.4.0"] [org.clojure/clojure-contrib "1.2.0"] [aleph "0.3.0-alpha1"] [org.clojure/data.json "0.1.2"] [clj-redis "0.0.13-SNAPSHOT"] [compojure "0.6.2"] [clj-http "0.1.3"]] :main words.play ;; Lein ring plugin will provide `lein ring server` functionality ;; (and some other relative to ring actions) :plugins [[lein-ring "0.6.6"]] :ring {:handler words.api/engine}) ``` In development environment I run it with 2 commands: lein run server lein ring server and it's works. For production environment I want to minimize dependencies and build it into standalone jar with: ``` lein uberjar ``` How can I build it and run both of servers from one jar file?

Original source