JSON22-Express

Expressjs middleware providing support to JSON22 data format in your applications.

Features

• Ready to use Express middleware
• Parse JSON22 body content
• Parse JSON body content
• Support for deflate, gzip, br content encodings
• Define Request.json22 method to send JSON22 serialized data
• Zero-dependency npm-package (depends on JSON22 only)
• Both CJS/ESM modules support

Installation

npm install json22-express

In your application initialization file add as a middleware

import express from 'express'; 
import { json22express } from 'json22-express'

const app = express();
app.use(json22express());

For old-fashioned applications

const express = require('express'); 
const { json22express } = require('json22-express'); 

const app = express();
app.use(json22express());

Configuration

JSON22-Express middleware support set of configuration options.

Pass options

import express from 'express'; 
import { json22express } from 'json22-express'

const app = express();
app.use(json22express({
    overrideResponseJsonMethod: true,
    maxContentLength: 1024 * 1024, // 1 meg
}));

Options

Option	Type	Default	Description
handleJson	boolean	false	Parse JSON content as well as JSON22
maxContentLength	number	no limit	Prevent from parsing of too large payloads
keepRawAs	string	do not keep raw body	Define Request field name to save payload Buffer to
overrideResponseJsonMethod	boolean	false	Override response json method as well
json22ParseOptions	Json22ParseOptions	empty	Options to be passed to JSON22.parse() method
json22StringifyOptions	Json22StringifyOptions	empty	Options to be passed to JSON22.stringify() method

Usage

import express from 'express'; 
import { json22express } from 'json22-express'

const app = express();

app.use(json22express({
    overrideResponseJsonMethod: true,
    maxContentLength: 1024 * 1024, // 1 meg
}));

app.get('/date', (req, res, next) => {
    // Use .json22() method from Response object
    res.status(200).json22({ date: new Date() });
    next();
});

app.get('/json', (req, res, next) => {
    // in case overrideResponseJsonMethod is set to true you may use 
    // .json() method to send JSON22 as well
    res.status(200).json({ date: new Date() });
    next();
});

app.get('/deprecated', (req, res, next) => {
    // WARNING: don't do this. It is deprecated method interface and in case
    // you set overrideResponseJsonMethod to true this method will throw an exception
    res.json(200, { date: new Date() });
    next();
});