The entry point of the app is server.js in the root directory.
This contains the connection to the db and the initialisation of the server.
The routes of the app are abstracted in a file index.js
The express server is wrapped in the callback function of the connection to the connection to the db.
mongo.connect('mongodb://localhost:27017/mandarine', function (err, db) {
//Error handling
if (!err){
console.log('Connected to Database');
}
//Middleware
app.use('/public', express.static(process.cwd()+'/public'));
app.use('/controllers', express.static(process.cwd()+'/app/controllers'));
//Calling the routes
routes(app,db);
app.listen(3000, function () {
console.log('Listening on port 3000...');
});
});The routes themselves are in the index.js file. There is an api endpoint that accepts 3 methods:
app.route('/api/clicks')
.get(clickHandler.getClicks)
.post(clickHandler.addClick)
.delete(clickHandler.resetClicks);These 3 functions are in the clickhandler.server.js file.
This file contains a function object, a function that is used to create an object.
The function object accepts a db parameter.
Said parameter is generated in server.js, passed to index.js and used there in the object created executing the function object.
var clickHandler = new ClickHandler(db); This creates the object passing the db we received from server.js.
These 3 functions each send a specific response to the server and execute an operation to the clicks collection of the database.