Express YUI
=============

[Express][] extension for YUI Applications.

[![Build Status](https://travis-ci.org/yahoo/express-yui.png?branch=master)][Build Status]


[Express]: https://github.com/visionmedia/express
[Build Status]: https://travis-ci.org/yahoo/express-yui


Goals & Design
--------------

This compontent extends express by adding a new member to the
express application thru `app.yui`. This object is responsible
for exposing the `yui_config` and `yui_seed` configurations into
the view engine. Also, it provides a set of runtime
utilities that can be used to customize the YUI config for
the client side, creates a Y instance on the server side when
needed to provide access to the registered modules on the server
side, and provides a set of middleware to expose data into the
runtime and the client side.

Installation
------------

Install using npm:

```shell
$ npm install express-yui
```


Features
--------

## Features

 * expose yui config per request
 * expose seed files per request
 * provide basic configurations for cdn, debug, and other common conditions
 * provide basic middleware to server `static` assets from origin server, including
combo capabilities built-in.
 * provide basic middleware to `expose` `yui_config` and `yui_seed` into the view engine
so they can be used in the templates to boot YUI in the client side.

## Other features

 * work with modown-locator to produce a build process by shifting any yui module
in the application bundle or any other bundle.
 * provide basic express view engine to rely on views registered at the server side
thru the `app.yui.use()` as compiled templates.


Usage
-----

## Serving static assets from app origin

```
app.yui.setCoreFromAppOrigin();
app.yui.setGroupFromAppOrigin('group-name');
app.use(yui.static());
```

If you plan to define a prefix for all static assets, then make sure you set that
before defining any group, so loader can know about it. Here is the example:

```
app.set('yui static prefix', '/static');
app.yui.setCoreFromAppOrigin();
app.yui.setGroupFromAppOrigin('group-name');
app.use('/static', yui.static());
```

License
-------

This software is free to use under the Yahoo! Inc. BSD license.
See the [LICENSE file][] for license text and copyright information.

[LICENSE file]: https://github.com/yahoo/express-yui/blob/master/LICENSE.md


Contribute
----------

See the [CONTRIBUTE file][] for info.

[CONTRIBUTE file]: https://github.com/yahoo/express-yui/blob/master/CONTRIBUTE.md