feat: roughing out chat-bot codebase

.gitignore

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+.DS_Store
+node_modules
+.env
+.nyc_output
+coverage

commands/flip.js

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+const flip = require('flip')
+
+exports.command = 'flip <strings...>'
+
+exports.describe = "to davy jones' locker with ye"
+
+exports.builder = {}
+
+exports.handler = function (argv) {
+  argv.respond(flip(argv.string.join(' ')))
+}

package.json

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+{
+  "name": "pirate-joe",
+  "version": "1.0.0",
+  "description": "yargs' chat-bot",
+  "main": "server.js",
+  "scripts": {
+    "test": "nyc mocha test.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+ssh://git@github.com/yargs/pirate-joe.git"
+  },
+  "keywords": [
+    "chat-bot",
+    "example"
+  ],
+  "author": "Ben Coe <ben@npmjs.com>",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/yargs/pirate-joe/issues"
+  },
+  "homepage": "https://github.com/yargs/pirate-joe#readme",
+  "dependencies": {
+    "body-parser": "^1.15.2",
+    "dotenv": "^2.0.0",
+    "express": "^4.14.0",
+    "flip": "^1.0.0",
+    "request": "^2.75.0",
+    "yargs": "^6.1.0-candidate"
+  }
+}

server.js

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+const express = require('express')
+const bodyParser = require('body-parser')
+
+if (process.env.NODE_ENV !== 'production') require('dotenv').config()
+
+const app = express()
+const parser = require('yargs')
+  .commandDir('commands')
+  .demand(1)
+  .strict()
+  .help()
+
+app.use(bodyParser.urlencoded({ extended: false }))
+
+app.post('/', function (req, res) {
+  let context = Object.assign({}, req.body)
+
+  context.respond = function (msg) {
+    res.setHeader('Content-Type', 'application/json')
+    res.send(JSON.stringify({
+      response_type: 'in_channel',
+      text: msg
+    }))
+  }
+  context.batman = Math.random() * 100
+
+  parser.parse(req.body.text || '', context, (err, argv, output) => {
+    if (output) argv.respond(output)
+  })
+})
+
+const port = process.env.PORT || 3000
+app.listen(port, function (foo) {
+  console.log('pirate joe bot listening on :' + port, 'beep boop')
+})