res-json

Node.js middleware to send JSON/JSONP responses.

Adds json() & jsonp() methods to response object.

This middleware is primarily created for router module. Unlike express, which supports json method natively, router does not provide such method to output json.

Installation

$ npm install res-json --save

Usage

const json = require('res-json');
 
const router = Router();
router.use(json());
 
router.get('/', (req, res) => {
  res.json({id: 1, message: 'Hello, World!'})
});

API

The middleware can be initialized optionally with a replacer and a space value. For more info. refer to JSON.stringify().

You can also provide a third argument as callback name for jsonp to override default callback name - callback

router.use(json(null, '\t'));  // indent with tabs

res.json(obj)

Write a JSON response, using JSON.stringify() with the content-type application/json.

res.jsonp(obj)

Write a JSON response with JSONP support.

router.use(json(null, '', 'cb')); // callback name is cb
 
router.get('/?cb=callme', (req, res) => {
  res.jsonp({id: 1, message: 'Hello, World!'})
});

License

MIT