This neat little script let's you develop Express apps without using something like nodemon to reload your server between changes.
Usage:
dev.js outside your project source folder, scripts/dev.js is what I'm using.src/index.js exports the Express instance itself without listening:import express from 'express'
const app = express()
app.use('/foo', (req, res) => res.send('Bar'))
export default appnode scripts/dev and enjoy.| const express = require('express') | |
| const chokidar = require('chokidar') | |
| const babelRegister = require('babel-register') | |
| const path = require('path') | |
| const sourcePath = path.resolve(__dirname, '../src') | |
| babelRegister({ | |
| only: sourcePath | |
| }) | |
| const watcher = chokidar.watch(sourcePath) | |
| watcher.on('ready', () => { | |
| watcher.on('all', () => { | |
| Object.keys(require.cache).filter(key => key.startsWith(sourcePath)).forEach(key => { | |
| delete require.cache[key] | |
| }) | |
| }) | |
| }) | |
| let handler = require(sourcePath) | |
| const app = express() | |
| app.use((req, res, next) => { | |
| handler = require(sourcePath).default | |
| handler(req, res, next) | |
| }) | |
| const port = process.env.PORT || 8081 | |
| const host = process.env.HOST || 'localhost' | |
| app.listen(port, host, err => { | |
| if (err) { | |
| throw err | |
| } | |
| console.log(`Listening at http://${host}:${port}`) | |
| }) |
@mariuslundgard Forgot to mention we're using https://github.com/59naga/babel-plugin-add-module-exports to work around having to use .default all over the place. I've updated the Gist though since most people won't have it installed.
👍
Nice reference! Think line 27 in dev.js needs to be
handler = require(sourcePath).default?