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sockjs-bridge's Introduction

SockJS bridge

This is a server that proxies SockJS connections. Why bother? Well, not everyone can have a SockJS server in their chosen language, whereas TCP/ZeroMQ bindings are far more common. Also, you may wish to deploy the bridge independently of your application, because of Reasons.

Debugging

$ npm install && node server.js

or

$ npm start

starts a server that listens for SockJS connections on port 8000 and for applications on port 5000.

The Node.JS module client has a simple client that speaks the proxy to app protocol. To simulate an application using the bridge, connect a client to localhost:5000:

$ var client = require('./client').connect('tcp://localhost:5000');
$ client.on('open', function(id) { client.accept(id); });
$ client.on('recv', function(id, data) {console.log(data.toString());});

To send data to one or more connections, use

$ client.send(data, connectionId ...);

The index.html in the top directory simply includes the appropriate script tag so you can open a connection. Try serving it through your favourite web server, e.g.:

$ python -m SimpleHTTPServer 8080

Then you can point a browser at that page, open a JavaScript console in the browser, and open a connection (as suggested on the page itself):

> var sock = new SockJS('http://localhost:8000/socks');
> sock.onmesssage = function(msg) { console.log(msg); };

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