Let's now get started making a Node script that we can use to convert a JSON file to CSV from the command line. I recommend Node v12 LTS which includes NPM 6. You'll need a version of Node.js that includes fs.promises and supports async/await and also have NPM installed. To get the most out of this article you should be familiar with the basics of Node.js, JavaScript, and async/await. At the end of the tutorial, I'll also show you how to use this instead of a custom converter.

If you don't need to customize the conversion process, it's quicker to use a third-party package like json-2-csv. Writing a method to convert a JSON structure to CSV How to load a JSON file from the filesystem In this tutorial, we'll create a CLI script to convert an input JSON file to an output CSV file. However, the dominant data format in spreadsheet applications like Excel and Google Sheets is CSV, as this format is the tersest and easiest for users to understand and create.Ī common function that backend apps will need to perform, therefore, is the conversion of JSON to CSV. Var result = converter.JSON has become the most popular way to pass data around on the modern web, with almost universal support between APIs and server applications.

Also, I already ran npm install json-2-csv and checked my package.json to see if its there (version 3.5.4) let converter = require('json-2-csv') Here's the code that I tried with the test data. But when I follow the docs and try and use it I get undefined as my result.

I'm pretty new to nodeJS so maybe I'm doing something wrong but I'm trying to use the node module json-2-csv.

Json to csv npm