js-message

Normalized JS & JSON Message and event Protocol for node.js, vanilla.js (plain old javascript), react.js, websockets, rest api's, node-ipc, and any other protocol that might use a js object and or a JSON string.

js-message allows for seamless conversion of JSON messages and events to JS objects for a normalized implementation on the server and in the client without needing to concern yourself with JSON intermediaries and custom parsers.

Things are just easier when you normalize them.

npm js-message info : See npm trends and stats for js-message

npm install --save js-message

GitHub info :

js-message site

method or key	type	mutable	description
type	String	true	the type of message
data	Object	true	the message data or payload
load	func	false	load a message from JSON, this will return a message with the type of error if not valid JSON
JSON	String	not by user	JSON representation of the message

Creating a Message Object

For the browser you can do either an import with the path to make the first http request for your module, and have it cached for other scripts thereafter OR you can import it with the <script> tag upfront which automatically loads as defer so it doesn't interrupt the parser.

1<script type="module" src='/path/to/module/js-message-vanilla.js' />
2

Both node and the browser now support import statements. If you use relative pathing you can use the same exact code from node in the browser without even transpiling much the less bundling.

1
2    //works for browser natively AND node natively
3    import { default as Message } from './node_modules/js-message/Message.js';
4    //works for browser transpiled AND node natively
5    import { default as Message } from 'js-message';
6
7    var myMessage=new Message;
8    myMessage.type='message or event type';
9    myMessage.data.something='something';
10    myMessage.data.stuff=[1,2,3,4,5]
11
12    console.log(myMessage.JSON);
13

Creating a Message From JSON

1
2    //works for browser natively AND node natively
3    import { default as Message } from './node_modules/js-message/Message.js';
4    //works for browser transpiled AND node natively
5    import { default as Message } from 'js-message';
6
7    //lets say we have the above example running on
8    //a websocket server sending js-messages as JSON
9    //
10    //and lets say this is the client in the browser
11    ws.on(
12        'message',
13        handleMessage
14    );
15
16    handleMessage(e){
17        var message=new Message;
18        message.load(e.data);
19
20        console.log(message.type, message.data);
21    }
22

Sending a Message Object via WebSocket

1
2    //works for browser natively AND node natively
3    import { default as Message } from './node_modules/js-message/Message.js';
4    //works for browser transpiled AND node natively
5    import { default as Message } from 'js-message';
6
7    //client example, but works the same on server too!
8    var ws=new WebSocket('ws://myawesomeWS:8000');
9
10    var myMessage=new Message;
11    myMessage.type='setUsername';
12    myMessage.data.username='sideshow bob';
13
14    ws.send(myMessage.JSON);
15

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This work is licenced via the MIT Licence