create a skeleton on Express

.eslintrc

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+{
+  "env": {
+    "commonjs": true,
+    "mocha": true,
+    "node": true,
+    "es6": true
+  },
+  "ecmaFeatures": {
+    "arrowFunctions": true,
+    "blockBindings": true,
+    "classes": true,
+    "defaultParameters": true,
+    "destructuring": true,
+    "forOf": true,
+    "generators": true,
+    "modules": true,
+    "objectLiteralComputedProperties": true,
+    "objectLiteralDuplicateProperties": true,
+    "objectLiteralShorthandMethods": true,
+    "objectLiteralShorthandProperties": true,
+    "regexUFlag": true,
+    "regexYFlag": true,
+    "restParams": true,
+    "spread": true,
+    "superInFunctions": true,
+    "templateStrings": true,
+    "unicodeCodePointEscapes": true,
+    "globalReturn": true
+  },
+  "globals": {
+    "_": false,
+    "angular": false,
+    "mocks": false,
+    "console": false,
+    "inject": true,
+    "module": true,
+    "window": false,
+    "expect": true,
+    "require": true,
+    "onPrepare": true,
+    "onComplete": true,
+    "browser": true,
+    "jasmine": true,
+    "sinon": true,
+    "beforeEach": true,
+    "afterEach": true,
+    "schema": true
+  }
+}

.gitignore

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+.idea/
+.vscode/
+node_modules/
+public/jspm_packages/
+public/node_modules/
+public/bower/
+config/local-production.yaml
+config/local-development.yaml
+config/local-test.yaml
+logs/*
+!logs/.gitkeep

.mocha.opts

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+--require test/helpers
+--recursive test/**/*.spec.js
+--timeout 10000

app.js

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+'use strict'
+
+if (!process.env.NODE_ENV) process.env.NODE_ENV = 'production'
+
+const express = require('express')
+const app = express()
+const config = require('config')
+const morgan = require('morgan')
+const methodOverride = require('method-override')
+const bodyParser = require('body-parser')
+
+module.exports = { app }
+
+const { headersMiddleware } = require('./src/middlewares')
+const { corsService, logDebugService, logService } = require('./src/services')
+const responses = require('./src/services/helpers/responses')
+const { logger } = logService
+
+const routes = require('./src/routes')
+
+const port = config.get('app.port')
+const host = config.get('app.host')
+
+app.use(corsService.corsBase())
+app.use(headersMiddleware)
+app.use(bodyParser.json())
+app.use(bodyParser.urlencoded({ extended: true }))
+app.use(methodOverride())
+
+if (
+  config.has('logDebug.enableServerStream') &&
+  config.get('logDebug.enableServerStream')
+) {
+  app.use(
+    morgan('combined', {
+      stream: { write: msg => logDebugService.debug(msg) }
+    })
+  )
+}
+
+app.use('/', routes)
+
+app.use((req, res, next) => {
+  responses.failure(404, 'Not found', res)
+})
+
+app.use((err, req, res, next) => {
+  logger.error('Found %s at %s', 'error', err)
+
+  responses.failure(
+    err.statusCode ? err.statusCode : 500,
+    err.message || err.statusMessage || '',
+    res
+  )
+})
+
+const server = app.listen(port, host, function() {
+  const host = server.address().address
+  const port = server.address().port
+
+  logger.info(`Server listening on host ${host} port ${port}`)
+})

config/default.yaml

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+app:
+  port: 31339
+  host: 127.0.0.1
+  cors:
+    enable: true
+    whitelist: null # array
+
+logDebug:
+  prefix: ''
+  postfix: :app
+  enableInfo: true
+  enableDev: true
+  enableError: true
+  enableServerStream: true
+
+log:
+  label: :app
+  pathError: logs/error.log
+  pathExcLogger: logs/exceptions-logger.log
+  pathLog: logs/log.log
+  enableConsole: true
+  enableColor: true
+  enableColorPathError: false
+  enableColorPathExcLogger: false
+  enableColorPathLog: false
+  maxSize: null
+

config/development.yaml

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+app:
+  port: 31339
+  host: 127.0.0.1
+
+logDebug:
+  postfix: :app-dev
+  enableInfo: true
+  enableDev: true
+  enableError: true
+  enableServerStream: true
+
+log:
+  label: :app-dev
+  pathExcLogger: null

config/local-development.yaml.dist

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+app:
+  port: 31339
+  cors:
+    enable: true
+    whitelist: null # array

config/local-production.yaml.dist

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+app:
+  port: 31339
+  cors:
+    enable: true
+    whitelist: null # array
+
+log:
+  label: :app-prod
+  pathError: logs/error.log
+  pathExcLogger: 'logs/exceptions-logger.log'

config/local-test.yaml.dist

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+app:
+  port: 3001
+
+logDebug:
+  postfix: :app-test
+  enableInfo: false
+  enableDev: false
+  enableError: false
+  enableServerStream: false
+
+log:
+  label: :app-test
+  enableConsole: false

config/production.yaml

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+app:
+  port: 31339
+  host: 127.0.0.1
+
+logDebug:
+  postfix: :app-prod
+  enableInfo: false
+  enableDev: false
+  enableError: false
+  enableServerStream: false
+
+log:
+  label: :app-prod
+  enableConsole: false
+  pathError: null
+  pathLog: null

config/test.yaml

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+app:
+  port: 3001
+  host: 127.0.0.1
+
+logDebug:
+  postfix: :app-test
+  enableInfo: false
+  enableDev: false
+  enableError: false
+  enableServerStream: false
+
+log:
+  label: :app-test
+  enableConsole: false