├── .gitignore
├── app.js
├── package.json
├── model
    ├── team.js
    └── db.js
├── pages.js
└── readme.md


/.gitignore:
--------------------------------------------------------------------------------
1 | npm-debug.log
2 | node_modules


--------------------------------------------------------------------------------
/app.js:
--------------------------------------------------------------------------------
1 | var http = require('http'),
2 |     db = require('./model/db'),
3 |     pages = require('./pages');
4 | 
5 | http.createServer(function (req, res) {
6 |   pages.index(req, res);
7 | }).listen(8888, '127.0.0.1');


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "MongooseCOnnectionTest",
 3 |   "version": "0.0.1",
 4 |   "private": true,
 5 |   "scripts": {
 6 |     "start": "node app"
 7 |   },
 8 |   "dependencies": {
 9 |     "mongoose": "3.6.x"
10 |   }
11 | }


--------------------------------------------------------------------------------
/model/team.js:
--------------------------------------------------------------------------------
 1 | var mongoose = require( 'mongoose' );
 2 | 
 3 | var teamSchema = new mongoose.Schema({
 4 |   Country: String,
 5 |   GroupName: String,
 6 |   CreatedOn: Date
 7 | });
 8 | 
 9 | var Team = module.exports = mongoose.model('Team', teamSchema);
10 | 


--------------------------------------------------------------------------------
/pages.js:
--------------------------------------------------------------------------------
 1 | var mongoose = require( 'mongoose' ),
 2 |     Team = mongoose.model('Team');
 3 | 
 4 | exports.index = function (req, res) {
 5 |   Team.create({
 6 |     Country : "England",
 7 |     GroupName: "D",
 8 |     CreatedOn: Date.now()
 9 |   }, function(err, team) {
10 |     var strOutput;
11 |     res.writeHead(200, {
12 |       'Content-Type': 'text/plain'
13 |     });
14 |     if (err) {
15 |       console.log(err);
16 |       strOutput = 'Oh dear, we\'ve got an error';
17 |     } else {
18 |       console.log('Team created: ' + team);
19 |       strOutput = team.Country + ' created in Group ' + team.GroupName + '\nat ' + team.CreatedOn;
20 |     }
21 |     res.write(strOutput);
22 |     res.end();
23 |   });
24 | };


--------------------------------------------------------------------------------
/model/db.js:
--------------------------------------------------------------------------------
 1 | // Bring Mongoose into the app
 2 | var mongoose = require( 'mongoose' );
 3 | 
 4 | // Build the connection string
 5 | var dbURI = 'mongodb://localhost/ConnectionTest';
 6 | 
 7 | // Create the database connection
 8 | mongoose.connect(dbURI);
 9 | 
10 | // CONNECTION EVENTS
11 | // When successfully connected
12 | mongoose.connection.on('connected', function () {
13 |   console.log('Mongoose default connection open to ' + dbURI);
14 | });
15 | 
16 | // If the connection throws an error
17 | mongoose.connection.on('error',function (err) {
18 |   console.log('Mongoose default connection error: ' + err);
19 | });
20 | 
21 | // When the connection is disconnected
22 | mongoose.connection.on('disconnected', function () {
23 |   console.log('Mongoose default connection disconnected');
24 | });
25 | 
26 | // If the Node process ends, close the Mongoose connection
27 | process.on('SIGINT', function() {
28 |   mongoose.connection.close(function () {
29 |     console.log('Mongoose default connection disconnected through app termination');
30 |     process.exit(0);
31 |   });
32 | });
33 | 
34 | 
35 | // BRING IN YOUR SCHEMAS & MODELS
36 | // For example
37 | require('./team');
38 | 


--------------------------------------------------------------------------------
/readme.md:
--------------------------------------------------------------------------------
 1 | Mongoose Default Connection
 2 | ===========================
 3 | 
 4 | A quick guide to the best practice for creating, maintaining and using a default Mongoose connection.
 5 | 
 6 | The connection is managed in `/model/db.js`. It is opened at application start, and closed on application termination. In this file we also monitor the `connected`, `error` and `disconnected` events.
 7 | 
 8 | A sample Mongoose schema is defined and model built in `/model/team.js`.
 9 | All of the relevant code is in /model/db.js.
10 | 
11 | `app.js` is just a minimal Node.js skeleton, rendering a page defined in `pages.js`. `pages.js` brings in Mongoose and the model defined in `/model/team.js`.
12 | 
13 | This only requires Mongoose in the application, as noted in package.json. If you download this you can install Mongoose into the application by running `npm install`
14 | 
15 | More detailed discussion around using this is available on my blog: ~theholmesoffice.com/mongoose-connection-best-practice/~
16 | 
17 | This link is now dead as the domain was poached from me 🤦‍♂️
18 | 
19 | Thanks to [3willows](https://github.com/3willows) for spotting it and providing the Web Archive link: [https://web.archive.org/web/20140330182958/http://theholmesoffice.com/mongoose-connection-best-practice/](https://web.archive.org/web/20140330182958/http://theholmesoffice.com/mongoose-connection-best-practice/)
20 | 
21 | It doesn't show my nice original formatting, but you can probably figure it out.
22 | 


--------------------------------------------------------------------------------