How to create a JSON listing summary from a list of JSON documents

Posted on October 20, 2022

with Node.js

I wrote this Node.js script to create a JSON listing file with some information out of a list of JSON files:

const fs = require('fs')

const folder = 'myFolder'

const list = fs.readdirSync(folder)
const src = []

list.forEach(f => {
    const file = fs.readFileSync(folder + '/' + f, 'utf-8')
        const json = JSON.parse(file)
        const {filename, created_at}
        src.push({filename, created_at})

fs.writeFileSync('list.json', JSON.stringify(src), 'utf-8')