promise-json-file-reader

Read and parse a File Object with mimetype application/json in browser.

File Object

Tag <input> with type="file" let the user choose a file from file system, and the user can access the selected file with the File API.

Install

$ npm install --save promise-json-file-reader

Usage as module

import promiseJsonFileReader from 'promise-json-file-reader';
 
const file = document.querySelector('input[type=file]').files[0];
 
promiseJsonFileReader(file)
    .then(data => console.log(data))
    .catch(err => console.error(err));

Usage with script tag

Copy file ./dist/promise-json-file-reader.js in your project lib directory.

<script src="./lib/promise-json-file-reader.js"></script>

const promiseJsonFileReader = window.promiseJsonFileReader;
 
const file = document.querySelector('input[type=file]').files[0];
 
promiseJsonFileReader(file)
    .then(data => console.log(data))
    .catch(err => console.error(err));

License

MIT © Riccardo Scalco