Creating a simple app using Backpack

Creating an Express app with Backpack can be as easy as implementing the following steps:

1. Install Express via npm:

$ npm i express

2. Add build and start scripts after the dev script in the package.json file:

// package.json
"scripts": {
  "dev": "backpack",
  "build": "backpack build",
  "start": "cross-env NODE_ENV=production node build/main.js"
}

3. Create the Backpack config file and use /server/ as the entry folder of your app, just as we have walked you through in the previous section:

// backpack.config.js
module.exports = {
  webpack: (config, options, webpack) => {
    config.entry.main = './server/index.js'
    return config
  }
}

4. Create a simple route with a 'Hello World' message:

// server/index.js
import express from 'express'
const app = express()
const port = 3000

app.get('/', (req, res) =>
  res.send(&apos...