1.0.2 • Public • Published

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Write a YAML or JSON file to disk. Automatically detects the format to write based on extension. Or pass ext on the options.

Please consider following this project's author, Jon Schlinkert, and consider starring the project to show your ❤️ and support.


Install with npm:

$ npm install --save write-data


Add to your node.js application with the following line of code:

var writeData = require('write-data');
// async
writeData(filepath, data[, options], function(err) {
  // do stuff with "err"
// sync
writeData.sync(filepath, data[, options]);


The file extension is used to detect the data format to write. This can be overriden by passing a value on options.ext.

YAML examples

var data = {language: 'node_js', node_js: ['0.10', '0.12']};
// async
writeData('.travis.yml', data, function(err) {
  // do stuff with "err"
// sync
writeData.sync('.travis.yml', data);

Both would write a .travis.yml file to disk with the following contents:

language: node_js
  - "0.10"
  - "0.12"

JSON examples

var data = { name: 'foo', version: '0.1.0' };
// async
writeData('package.json', data, function(err) {
  // do stuff with "err"
// sync
writeData.sync('package.json', data);

Both would write a package.json file to disk with the following contents:

  "name": "foo", 
  "version": "0.1.0" 



Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

Running Tests

Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:

$ npm install && npm test
Building docs

(This project's readme.md is generated by verb, please don't edit the readme directly. Any changes to the readme must be made in the .verb.md readme template.)

To generate the readme, run the following command:

$ npm install -g verbose/verb#dev verb-generate-readme && verb

Related projects

You might also be interested in these projects:

  • delete: Delete files and folders and any intermediate directories if they exist (sync and async). | homepage
  • read-data: Read JSON or YAML files. | homepage
  • read-yaml: Very thin wrapper around js-yaml for directly reading in YAML files. | homepage
  • write-json: Write a JSON file to disk, also creates intermediate directories in the destination path if… more | homepage
  • write-yaml: Write YAML. Converts JSON to YAML writes it to the specified file. | homepage
  • write: Write data to a file, replacing the file if it already exists and creating any… more | homepage


Jon Schlinkert


Copyright © 2018, Jon Schlinkert. Released under the MIT License.

This file was generated by verb-generate-readme, v0.6.0, on January 26, 2018.

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