Jason

JSON to ES6 class object converter middleware for express

Prerequisites

Jason uses the ES6 Reflect api, which requires at least Node.js version 6.4.0

Installing

npm install jason-parse

Demonstration

So first we define a basic model which requries an empty constructor that takes in parameter ...args

class User {
    constructor(...args){}
 
    get name() {
        return this.name;
    }
   
    set name(newName) {
        this.name = newName;
    }
}
module.exports = User;

When you POST json to the express server, send it to the parameter entity so that the middleware can parse it

Now for our express routes that we want to use this middleware on:

const routes = require('express').Router();
const User = require('./User');
const jason = require('../index');

routes.post('/<name>', jason.single(User, 'user'), function(req, res) {
    //req.body.user contains the parse entity from '{"name":"foo"}'
});

routes.post('/<name>', jason.array(User, 'users'), function(req, res) {
    //req.body.users contains an array of the parsed entities '[{"name":"foo"},{"name","bar"}]'
});

Authors

• Tom Orth (atf1999)

License

This project is licensed under the MIT License - see the LICENSE.md file for details

Acknowledgements

• Spring REST for doing this in their Java web framework and inspiring me to do this for Node.js