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Get NowJS

NowJS is a NodeJS module. The client javascript (now.js) is served by the NowJS server.

Go to Github or Download the tgz

Install From npm

npm install now

NowJS uses the excellent and node-proxy libraries and portions of sesame. json2.js is integrated in nowUtil.js

2 Step Setup

1. On the server

var httpServer = require('http').createServer(function(req, response){ /* Serve your static files */ })

var everyone = require("now").initialize(httpServer); = "Hello World!";

2. On the client

<script type="text/javascript" src="http://localhost:8080/nowjs/now.js"></script>

<script type="text/javascript">
    // alerts "Hello World!"


Q: Can I pass in a callback or closure, for example, if the remote function is asynchronous??

A: Yes. This is 100% supported

Q: How do I use NowJS with Express?

A: Very easily. var app = express.createServer(); app.listen(3000); var everyone = require("now").initialize(app);

*Q: Error: " SyntaxError: Unexpected token " / Can I statically host the now.js file?

A: On the client side, make sure you link to now.js like this

 <script src="http://myserver:myport/nowjs/now.js"></script>

You do not need to host the file /nowjs/now.js. It is automatically hosted by the NowJS using the http server you pass into the .initialize(...) in your server code. If you choose to host now.js yourself, you can, but do not use the version in github repo you MUST save the file at http://myserver:myport/nowjs/now.js and host that, because it is automatically configured for your server.

Further Reading

Now that you have NowJS, try the NowJS User Manual and Quick Chat Example

Have more questions? Please contact us: Email:

IRC: #nowjs on freenode

Twitter: @NowJSTeam