rack-qs

Features

• Encode query string params in a way that Rack-based applications can understand
  • application/x-www-form-urlencoded and application/json requests
  • Nested objects and arrays work :+1:
• Universal (Isomorphic)
• (COMING SOON) Capybara tested, use with confidence

Installation

Node.js:

$ npm install rack-qs --save

Yarn:

$ yarn add rack-qs

the browser:

<script src="dist/rack-qs.js"></script>

Usage

CommonJS:

const rackQs = require('rack-qs');

let obj = { key1: 'value1', key2: [10, 20, 30] };
let str = rackQs.stringify(obj);
// => 'key1=value1&key2%5B%5D=10&key2%5B%5D=20&key2%5B%5D=30'

ES6 import:

import * as rackQs from 'rack-qs';

let obj = { key1: 'value1', key2: [10, 20, 30] };
let str = rackQs.stringify(obj);
// => 'key1=value1&key2%5B%5D=10&key2%5B%5D=20&key2%5B%5D=30'

<script></script> tag:

let obj = { key1: 'value1', key2: [10, 20, 30] };
let str = window.rackQs.stringify(obj);
// => 'key1=value1&key2%5B%5D=10&key2%5B%5D=20&key2%5B%5D=30'

Options

Rack decodes application/x-www-form-urlencoded and application/json requests differently. To specify which kind of request, pass an optional second argument options.

let obj = { foo: [ { bar: 'baz' } ] };
let options = { form: true };
let str = rackQs.stringify(obj, options);
// => 'foo%5B0%5D%5Bbar%5D=baz'

options.form is false by default.

Browser Support

Chrome, Firefox, Safari, Edge, and IE9+.

License

MIT