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https://github.com/mauricemach/zappa

Node development for the lazy.
https://github.com/mauricemach/zappa

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Node development for the lazy.

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# Node development for the lazy

If you can describe it in 495 characters, why on earth should it take 879?

Zappa is a [CoffeeScript](http://coffeescript.org)-optimized interface to [Express](http://expressjs.com) and [Socket.IO](http://socket.io) that makes this:

```coffee
require('zappa') ->
Gizmo = require './model/gizmo'

@use 'bodyParser', 'methodOverride', @app.router, 'static'

@configure
development: => @use errorHandler: {dumpExceptions: on}
production: => @use 'errorHandler'

@get '/': -> @render 'index'

@get '/gizmos/:id': ->
Gizmo.findById @params.id, (err, gizmo) =>
@render index: {err, gizmo}

@on connection: ->
@emit welcome: {time: new Date()}

@on shout: ->
@broadcast shout: {@id, text: @data.text}
```

Equivalent to this:

```coffee
express = require 'express'
app = express.createServer()
io = require('socket.io').listen(app)

Gizmo = require './model/gizmo'

app.use express.bodyParser()
app.use express.methodOverride()
app.use app.router
app.use express.static __dirname + '/public'

app.configure 'development', ->
app.use express.errorHandler dumpExceptions: on

app.configure 'production', ->
app.use express.errorHandler()

app.get '/', (req, res) -> res.render 'index'

app.get '/gizmos/:id', (req, res) ->
Gizmo.findById req.params.id, (err, gizmo) ->
res.render 'index', {err, gizmo}

io.sockets.on 'connection', (socket) ->
socket.emit 'welcome', time: new Date()

socket.on 'shout', (data) ->
socket.broadcast.emit 'shout',
id: socket.id, text: data.text

app.listen 3000

console.log "Express server listening on port %d in %s mode",
app.address().port, app.settings.env
```

And throws in some additional features while at it:

```coffee
require('zappa') ->
@enable 'default layout', 'serve jquery',
'serve sammy', 'minify'

@get '/': ->
@render 'index'

@on connection: ->
@emit welcome: {result: sum 1, 2}

@shared '/shared.js': ->
root = window ? global
root.sum = (x, y) -> x + y

@client '/index.js': ->
@connect()

@get '#/route': ->
$('body').append 'client routes!'

@on welcome: ->
$('body').append "welcomed: #{sum @data.result, 2}"

@view index: ->
@title = 'PicoChat!'
@scripts = ['/socket.io/socket.io', '/zappa/jquery',
'/zappa/sammy', '/zappa/zappa', '/shared', '/index']

h1 @title
```

## Learn More

- Get the gist with the [crash course](http://zappajs.org/docs/crashcourse)

- Check the [API reference](http://zappajs.org/docs/0.3-gumbo/reference)

- See the [examples](https://github.com/mauricemach/zappa/tree/master/examples) included with the source

- Read the [annotated source](http://zappajs.org/docs/zappa.html) generated by [docco](http://jashkenas.github.com/docco/)

## Other resources

- The source code [repository](http://github.com/mauricemach/zappa) at github

- Questions, suggestions? Drop us a line on the [mailing list](http://groups.google.com/group/zappajs)

- Rather do it realtime? Join the IRC channel on freenode: [#zappajs]((irc://irc.freenode.net/zappajs)

- Found a bug? Open an [issue](http://github.com/mauricemach/zappa/issues) at github

- Check the project's history at the [change log](https://github.com/mauricemach/zappa/blob/master/CHANGELOG.md)

- Migrating from an earlier version? Read the announcements ([0.2.x](http://zappajs.org/docs/0.2-peaches/announcement)/[0.3.x](http://zappajs.org/docs/0.3-gumbo/announcement)) for an overview on changes, and follow the TL;DR migration guides ([0.2.x](http://zappajs.org/docs/0.2-peaches/migration)/[0.3.x](http://zappajs.org/docs/0.3-gumbo/migration))

- Deploying to heroku? Check [this blog post](http://blog.superbigtree.com/blog/2011/08/19/hosting-zappa-0-2-x-on-heroku/)

## Thanks loads

To all people behind the excellent libs that made this little project possible, more specifically:

- Jeremy Ashkenas for CoffeeScript, the "little" language is nothing short of revolutionary to me.

- TJ Holowaychuk for the robust and flexible cornerstone that's Express.

- Guillermo Rauch for solving (as far as I'm concerned) the comet problem once and for all.

- Ryan Dahl for Node.js, without which nothing of this would be possible.

Also:

- Blake Mizerany for Sinatra, the framework that made me redefine simple.

- why the lucky stiff, for making me redefine hacking.

- And last but not least Frank Zappa, for the spirit of nonconformity and experimentation that inspires me to push forward. Not to mention providing the soundtrack.

"Why do you necessarily have to be wrong just because a few million people think you are?" - FZ