CLI utility in ClojureScript running on Node.js

CLI utility in ClojureScript running on Node.js

• 1.
  Clojure on Node Buildinga CLI utility
• 2.
  Why? • Startup speed- Node.js apps start faster • Easier distribution -- ```npm install -g <app>``` • Way to learn core.async • AWS Lambda/Google Cloud Functions (serverless architecture) • Server-side rendering
• 3.
  ClojureScript build process *.cljsfiles *.js file(s) Google Closure compiler ClojureScript compiler compiles cljs->js compiles js->optimized-js
• 4.
  Setting up Leiningen
• 5.
  Setting up Leinigen(cont'd)
• 6.
  Hello, World!
• 7.
  Building
• 8.
  Read Eval PrintLoop demo
• 9.
  REPL starts nodejs process onrandom port does this: and sends user commands to nodejs process, started by repl-env, over the network socket used by IDEs
• 10.
  Parsing ars -clj.tools.cli
• 11.
  Parsing args (cont'd)
• 12.
  Interop with Node.jslibraries compiles into
• 13.
  Callbacks
• 14.
  core.async for callbacks georgewsinger/cljs-callback-heaven/blob/master/src/cljs_callback
• 15.
  core.async for callbacks (cont'd) https://github.com/mailhog/MailHog
• 16.
  core.async for promises
• 17.
  Links • clojars.org/<template-name>/lein-template => ```lein new<template-name> <project-name>``` • https://clojars.org/cljs-node/lein-template • https://clojars.org/cljs-node-app/lein-template • https://clojars.org/node-cljs/lein-template • https://clojars.org/node-cli/lein-template • https://github.com/karolisl/repomaker -- my cljs-node project • https://github.com/Gozala/node.core -- some helper functions working on node • https://github.com/GregorStocks/cljs-http-node -- core.async based http client for node