sjayavelu1 edited this page Nov 29, 2016 · 18 revisions

This wiki describes the architecture of the node-express-mongoose boilerplate.

## server.js

This is the main file which gets executed when you run npm start. It bootstraps models, configurations and routes.

## models

Simply drop a mongoose model file in the app/models/ directory, make sure the schema is defined

var mongoose = require('mongoose')
var Schema = mongoose.Schema

var UserSchema = new Schema({
  name: { type: String, default: '' },
  email: { type: String, default: '' },
  hashed_password: { type: String, default: '' },
  salt: { type: String, default: '' }
})

and is exposed using

// after schema declaration
mongoose.model('User', UserSchema)

As you can see in the user model file, we are using mongoose-user plugin - which does the validations and provides some generic statics like .list() and .load().

Further down, you can use these list and load methods to write your own statics. For example

somewhere in your admin or controller

User.deleted(function (err, users) {
  // do your stuff
  // `users` is an array of deleted users
})

in app/models/user.js, you define your static like this

UserSchema.static({

  // Lists all the deleted users

  deleted: function (cb) {
    this.list({
      criteria: { deleted: true },
      sort: { name: 'desc' },
      limit: 20,
      populate: [{
        path: 'company', select: 'name', match: { deleted: false }
      }],
      select: 'name email'
    }, cb)
  }
})
## views

The views are located in app/views/ directory. The boilerplate uses swig as the templating system. If you want to use ejs (also use ejs-locals) or any other templating system, rename the .html files to .ejs or whatever extension the templating system provides.

The views directory contains

  1. includes/ - contains
  • head.html - meta information, scripts, stylesheets
  • header.html - contains the logo and the navigation links
  • foot.html - usually javascript
  • footer.html - footer links
  1. layouts/ - contains the layout files.
  2. 404 and 500

We are using the view-helpers middleware, which provides some generic methods. If any request comes from a mobile device, then the app automatically tries to look for a .mobile.html file and renders it.

For example

res.render('home/index', {
  title: 'Welcome to our app'
})

If the request is coming from a mobile device then, the the app tries to look for a index.mobile.html, if its there, it tries to render that, otherwise the index.html is rendered.

## controllers

Controllers are in the app/controllers/ directory. A simple controller method

exports.index = function (req, res) {
  Post.list({}, function (err, posts) {
    res.render('posts', {
      title: 'List of posts',
      posts: posts
    })
  })
}

Its always better to follow conventions. For CRUD stuff, I usually name the controller methods like

// load a post
exports.load = function (req, res, next, id) {
  // set req.post
  next()
}

// list posts
// GET /posts
exports.index = function (req, res) {
  // render posts/index
}

// new post
// GET /posts/new
exports.new = function (req, res) {
  // render posts/new
}

// create post
// POST /posts
exports.create = function (req, res) {
  // render posts/new if err
  // redirect to posts/:id if created
}

// show post
// GET /posts/:id
exports.show = function (req, res) {
  // render posts/show
}

// edit post
// GET /posts/:id/edit
exports.edit = function (req, res) {
  // render posts/edit
}

// update post
// PUT /posts/:id
exports.update = function (req, res) {
  // render posts/edit if err
  // redirect to /posts/:id if updated
}

// delete post
// DEL /posts/:id
exports.destroy = function (req, res) {
  // redirect to /posts
}
## routes
// since NODE_PATH=./app/controllers is set, you don't have to use the
// whole path
var posts = require('posts')

// posts crud routes
app.get('/posts', posts.index)
app.get('/posts/new', posts.new)
app.post('/posts', posts.create)
app.get('/posts/:id', posts.show)
app.get('/posts/:id/edit', posts.edit)
app.put('/posts/:id', posts.update)
app.del('/posts/:id', posts.destroy)
## express config ## passport config ## environment config ## using middlewares ## using route middlewares ## mailers ## tests
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