Code files

Chapter10/setting-up-a-development-environment/micro/adderservice/package.json

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+{
+  "name": "adderservice",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "Peter Elger",
+  "license": "ISC",
+  "dependencies": {
+    "restify": "^4.3.0"
+  }
+}

Chapter10/setting-up-a-development-environment/micro/adderservice/service.js

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+'use strict'
+
+const restify = require('restify')
+
+function respond (req, res, next) {
+  const result = (parseInt(req.params.first, 10) + 
+    parseInt(req.params.second, 10)).toString()
+  console.log('adding numbers!') 
+  res.send(result)
+  next()
+}
+
+const server = restify.createServer()
+server.get('/add/:first/:second', respond)
+
+server.listen(8080, () => {
+  console.log('%s listening at %s', server.name, server.url)
+})
+

Chapter10/setting-up-a-development-environment/micro/fuge/fuge.yml

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+fuge_global:
+  tail: true
+  monitor: true
+  monitor_excludes:
+    - '**/node_modules/**'
+    - '**/.git/**'
+    - '*.log'
+adderservice:
+  type: process
+  path: ../adderservice
+  run: 'node service.js'
+  ports:
+    - main=8080
+webapp:
+  type: process
+  path: ../webapp
+  run: 'npm start'
+  ports:
+    - main=3000

Chapter10/setting-up-a-development-environment/micro/fuge/fuge2.yml

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+fuge_global:
+  tail: true
+  monitor: true
+  monitor_excludes:
+    - '**/node_modules/**'
+    - '**/.git/**'
+    - '*.log'
+adderservice:
+  type: node
+  path: ../adderservice
+  run: 'node service.js'
+  ports:
+    - main=8080
+webapp:
+  type: process
+  path: ../webapp
+  run: 'npm start'
+  ports:
+    - main=3000

Chapter10/setting-up-a-development-environment/micro/webapp/app.js

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+var express = require('express')
+var path = require('path')
+var favicon = require('serve-favicon')
+var logger = require('morgan')
+var cookieParser = require('cookie-parser')
+var bodyParser = require('body-parser')
+
+var index = require('./routes/index')
+var users = require('./routes/users')
+var add = require('./routes/add')
+
+var app = express()
+
+// view engine setup
+app.set('views', path.join(__dirname, 'views'))
+app.set('view engine', 'ejs')
+
+// uncomment after placing your favicon in /public
+// app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
+app.use(logger('dev'))
+app.use(bodyParser.json())
+app.use(bodyParser.urlencoded({ extended: false }))
+app.use(cookieParser())
+app.use(express.static(path.join(__dirname, 'public')))
+
+app.use('/', index)
+app.use('/users', users)
+app.use('/add', add)
+
+// catch 404 and forward to error handler
+app.use(function (req, res, next) {
+  var err = new Error('Not Found')
+  err.status = 404
+  next(err)
+})
+
+// error handler
+app.use(function (err, req, res, next) {
+  // set locals, only providing error in development
+  res.locals.message = err.message
+  res.locals.error = req.app.get('env') === 'development' ? err : {}
+
+  // render the error page
+  res.status(err.status || 500)
+  res.render('error')
+})
+
+module.exports = app

Chapter10/setting-up-a-development-environment/micro/webapp/bin/www

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+#!/usr/bin/env node
+
+/**
+ * Module dependencies.
+ */
+
+var app = require('../app');
+var debug = require('debug')('webapp:server');
+var http = require('http');
+
+/**
+ * Get port from environment and store in Express.
+ */
+
+var port = normalizePort(process.env.PORT || '3000');
+app.set('port', port);
+
+/**
+ * Create HTTP server.
+ */
+
+var server = http.createServer(app);
+
+/**
+ * Listen on provided port, on all network interfaces.
+ */
+
+server.listen(port);
+server.on('error', onError);
+server.on('listening', onListening);
+
+/**
+ * Normalize a port into a number, string, or false.
+ */
+
+function normalizePort(val) {
+  var port = parseInt(val, 10);
+
+  if (isNaN(port)) {
+    // named pipe
+    return val;
+  }
+
+  if (port >= 0) {
+    // port number
+    return port;
+  }
+
+  return false;
+}
+
+/**
+ * Event listener for HTTP server "error" event.
+ */
+
+function onError(error) {
+  if (error.syscall !== 'listen') {
+    throw error;
+  }
+
+  var bind = typeof port === 'string'
+    ? 'Pipe ' + port
+    : 'Port ' + port;
+
+  // handle specific listen errors with friendly messages
+  switch (error.code) {
+    case 'EACCES':
+      console.error(bind + ' requires elevated privileges');
+      process.exit(1);
+      break;
+    case 'EADDRINUSE':
+      console.error(bind + ' is already in use');
+      process.exit(1);
+      break;
+    default:
+      throw error;
+  }
+}
+
+/**
+ * Event listener for HTTP server "listening" event.
+ */
+
+function onListening() {
+  var addr = server.address();
+  var bind = typeof addr === 'string'
+    ? 'pipe ' + addr
+    : 'port ' + addr.port;
+  debug('Listening on ' + bind);
+}

Chapter10/setting-up-a-development-environment/micro/webapp/package.json

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+{
+  "name": "webapp",
+  "version": "0.0.0",
+  "private": true,
+  "scripts": {
+    "start": "node ./bin/www"
+  },
+  "dependencies": {
+    "body-parser": "~1.16.0",
+    "cookie-parser": "~1.4.3",
+    "debug": "~2.6.0",
+    "ejs": "~2.5.5",
+    "express": "~4.14.1",
+    "morgan": "~1.7.0",
+    "restify": "^4.3.0",
+    "serve-favicon": "~2.3.2"
+  }
+}

Chapter10/setting-up-a-development-environment/micro/webapp/public/stylesheets/style.css

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+body {
+  padding: 50px;
+  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
+}
+
+a {
+  color: #00B7FF;
+}

Chapter10/setting-up-a-development-environment/micro/webapp/routes/add.js

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+const { Router } = require('express')
+const restify = require('restify')
+const router = Router()
+
+router.get('/', function (req, res) {
+  res.render('add', { first: 0, second: 0, result: 0 })
+})
+
+router.post('/calculate', function (req, res, next) {
+  const client = restify.createStringClient({
+    url: 'http://localhost:8080'
+  })
+  const {first, second} = req.body
+  client.get(
+    `/add/${first}/${second}`,
+    (err, svcReq, svcRes, result) => {
+      if (err) {
+        next(err)
+        return 
+      }
+      res.render('add', { first, second, result })
+    }    
+  ) 
+})
+
+module.exports = router

Chapter10/setting-up-a-development-environment/micro/webapp/routes/index.js

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+var express = require('express')
+var router = express.Router()
+
+/* GET home page. */
+router.get('/', function (req, res, next) {
+  res.render('index', { title: 'Express' })
+})
+
+module.exports = router

Chapter10/setting-up-a-development-environment/micro/webapp/routes/users.js

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+var express = require('express')
+var router = express.Router()
+
+/* GET users listing. */
+router.get('/', function (req, res, next) {
+  res.send('respond with a resource')
+})
+
+module.exports = router

Chapter10/setting-up-a-development-environment/micro/webapp/views/add.ejs

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+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Add</title>
+    <link rel='stylesheet' href='/stylesheets/style.css' />
+  </head>
+  <body>
+    <h1>Add it up!</h1>
+    <form id='calc-form' action='/add/calculate' method='post'>
+      <input type='text' id='first', name='first' value=<%= first %>></input>
+      <input type='text' id='second', name='second' value=<%= second %>></input>
+    </form>
+    <button type="submit" form="calc-form" value="Submit">Submit</button>
+    <h2>result = <%= result %></h2>
+  </body>
+</html>

Chapter10/setting-up-a-development-environment/micro/webapp/views/error.ejs

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+<h1><%= message %></h1>
+<h2><%= error.status %></h2>
+<pre><%= error.stack %></pre>

Chapter10/setting-up-a-development-environment/micro/webapp/views/index.ejs

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+<!DOCTYPE html>
+<html>
+  <head>
+    <title><%= title %></title>
+    <link rel='stylesheet' href='/stylesheets/style.css' />
+  </head>
+  <body>
+    <h1><%= title %></h1>
+    <p>Welcome to <%= title %></p>
+  </body>
+</html>