Dynamically loads routes for express

routesLoader.js

// Examples
// "routes/get.js" for a get on "/" 
// "route/users/get.js" for a get on "/users"
// "route/users/post.js" for a post on "/users"
// "route/users/$id/post.js" for a post on "/users/:id"


import fs from 'fs-readdir-recursive'
import express from 'express'

const router = express.Router();

const routesLoader = (app) => {

  const routes = fs(`${__dirname}/../routes`);

  routes.forEach((route) => {
    route = route.replace(/\\/g, '/');
    let paths = route.split('/')

    let action = paths.pop();
    action = action.slice(0, -3);

    let url = paths.reduce((acc, cur) => `${acc}/${cur}`
      , '');

    let actionPath = `../routes/${url}/${action}`;
    actionPath = actionPath.replace(/\/\//g, '/');

    url = url.replace(/\$/g, ':');

    router[action](url, require(actionPath).default);
  })

  app.use(router);
}


export default routesLoader;

server.js

import express from 'express';

import utils from './utils';

const app = express();

utils.routesLoader(app);

app.listen(33333, () => {
    console.log('listen port 33333');
});