express-routes-mapper

express-routes-mapper

a simple package to map your routes for your expressjs application

Getting started

• Start from ground
• supported methods
• dynamic routes

Start from ground

This is a example for a simple rest API.

1.) npm install

$ npm i -S express-routes-mapper

2.) mapped routes

Create your routes file:

// es6
const routes = {

  'POST /user': 'UserController.create'

}

export default routes;

//es5
module.exports = {

  'POST /user': 'UserController.create'

}

Every post request to your server to route '/user' will call the function 'create' on the 'UserController'.

3.) the controller

Create a file named UserController.js

//es6
export default class UserController {

  create (req, res) {

    res.send('created a User with es6');

  }

}

//es5
module.exports = {

  'create': function (req, res) {

    res.send('created a User with es5');

  }

}

4.) tell express.js app to use our routes

I assume you have a folder structure like this, but it can be adapted to any folder structure.

.
+-- src
|   +-- config
|   |   +-- routes.js
|   |
|   +-- controllers
|   |   +-- UserController.js
|   |
|   +-- models
|   |
|   app.js
|
package.json

Your app.js could look a bit like this:

The magic happens here:

• import routes from './config/routes'; the file where all the routes are mapped
• import mapRoutes from 'express-routes-mapper'; the package that makes the mapping possible
• app.use('/', mapRoutes(routes)); tell express to use the mapped routes and here
• var routes = require('./config/routes'); the file where all the routes are mapped
• var mapRoutes = require('express-routes-mapper'); the package that makes the mapping possible
• app.use('/', mapRoutes(routes)); tell express to use the mapped routes

//es6
import express from 'express';
import http from 'http';

import routes from './config/routes';
import mapRoutes from 'express-routes-mapper';

const app = express();
const server = http.Server(app);
const port = 3338;

app.use('/', mapRoutes(routes));

server.listen(port, function() {
  console.log('There we go ♕');
  console.log(`Gladly listening on http://127.0.0.1:${port}`);
});

//es5
var express = require('express');
var http = require('http');

var routes = require('./config/routes');
var mapRoutes = require('express-routes-mapper');

var app = express();
var server = http.Server(app);
var port = 3339;

app.use('/', mapRoutes(routes));

server.listen(port, function(){
  console.log('There we go ♕');
  console.log('Gladly listening on http://127.0.0.1:' + port);
});

Supported methods

• GET
• POST
• PUT
• DELETE

{

  'GET    /someroute' : 'SomeController.somefunction',
  'POST   /someroute' : 'SomeController.somefunction',
  'PUT    /someroute' : 'SomeController.somefunction',
  'DELETE /someroute' : 'SomeController.somefunction'

}

Dynamic routes

Simply use a colon ':' for defining dynamic routes.

{
  'GET /someroute/:id' : 'SomeController.somefunction'
}

If you make a get request to http://localhost/someroute/1 the 1 (:id) is now in the 'SomeController accessible.

//es6
export default class SomeController {

  somefunction (req, res) {

    let id = req.params.id;

  }

}

//es5
module.exports = {

  'somefunction': function (req, res) {

    var id = req.params.id

  }

}