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[](http://travis-ci.org/sinatra/sinatra-contrib)
Collection of common Sinatra extensions, semi-officially supported.
# Goals
* For every future Sinatra release, have at least one fully compatible release
* High code quality, high test coverage
* Include plugins people usually ask for a lot
# Included extensions
## Common Extensions
These are common extension which will not add significant overhead or change any
behavior of already existing APIs. They do not add any dependencies not already
installed with this gem.
Currently included:
* `sinatra/capture`: Let's you capture the content of blocks in templates.
* `sinatra/config_file`: Allows loading configuration from yaml files.
* `sinatra/content_for`: Adds Rails-style `content_for` helpers to Haml, Erb,
Erubis and Slim.
* `sinatra/cookies`: A `cookies` helper for reading and writing cookies.
* `sinatra/engine_tracking`: Adds methods like `haml?` that allow helper
methods to check whether they are called from within a template.
* `sinatra/json`: Adds a `#json` helper method to return JSON documents.
* `sinatra/link_header`: Helpers for generating `link` HTML tags and
corresponding `Link` HTTP headers. Adds `link`, `stylesheet` and `prefetch`
helper methods.
* `sinatra/multi_route`: Adds ability to define one route block for multiple
routes and multiple or custom HTTP verbs.
* `sinatra/namespace`: Adds namespace support to Sinatra.
* `sinatra/respond_with`: Choose action and/or template automatically
depending on the incoming request. Adds helpers `respond_to` and
`respond_with`.
## Custom Extensions
These extensions may add additional dependencies and enhance the behavior of the
existing APIs.
Currently included:
* `sinatra/decompile`: Recreates path patterns from Sinatra's internal data
structures (used by other extensions).
* `sinatra/reloader`: Automatically reloads Ruby files on code changes.
## Other Tools
* `sinatra/extension`: Mixin for writing your own Sinatra extensions.
* `sinatra/test_helpers`: Helper methods to ease testing your Sinatra
application. Partly extracted from Sinatra. Testing framework agnostic
# Installation
Add `gem 'sinatra-contrib'` to *Gemfile*, then execute `bundle install`.
If you don't use Bundler, install the gem manually by executing `gem install sinatra-contrib` in your command line.
# Usage
## Classic Style
A single extension (example: sinatra-content-for):
``` ruby
require 'sinatra'
require 'sinatra/content_for'
```
Common extensions:
``` ruby
require 'sinatra'
require 'sinatra/contrib'
```
All extensions:
``` ruby
require 'sinatra'
require 'sinatra/contrib/all'
```
## Modular Style
A single extension (example: sinatra-content-for):
``` ruby
require 'sinatra/base'
require 'sinatra/content_for'
require 'sinatra/namespace'
class MyApp < Sinatra::Base
# Note: Some modules are extensions, some helpers, see the specific
# documentation or the source
helpers Sinatra::ContentFor
register Sinatra::Namespace
end
```
Common extensions:
``` ruby
require 'sinatra/base'
require 'sinatra/contrib'
class MyApp < Sinatra::Base
register Sinatra::Contrib
end
```
All extensions:
``` ruby
require 'sinatra/base'
require 'sinatra/contrib/all'
class MyApp < Sinatra::Base
register Sinatra::Contrib
end
```
## Documentation
For more info check the [official docs](http://www.sinatrarb.com/contrib/) and
[api docs](http://rubydoc.info/gems/sinatra-contrib/1.4.0/frames).
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