Crack Middleware

Crack provides a set of common HTTP::Handlers that are similar to Rack Middleware.

Each handler provides changes needed to the HTTP::Context and the ability to configure
the handler using a block that is yields to self for setting any properties.

Installation

Add this to your application’s shard.yml:

dependencies:
  crack:
    github: kemalyst/crack

Usage

Add the handler to your HTTP::Server implementation:

require "crack"
require "http/server"
Crack::Handler::Logger.instance.config do |config|
  config.logger = Logger.new(STDOUT)
end
Crack::Handler::Static.instance.config do |config|
  config.public_folder = "./public"
  config.default_file = "index.html"
end
HTTP::Server.new("127.0.0.1", 8080, [
  Crack::Handler::Error.instance,
  Crack::Handler::Logger.instance,
  Crack::Handler::Static.instance,
]).listen

You can add these to Kemal or any other framework that support HTTP::Handlers in their stack.

Development

If you want to add a handler to this library, please follow the pattern provided:

• Provide a singleton pattern with the self.instance method to instantiate
• Provide a self.config() and config() method that yields self to a block to set any properties needed
• If your handler requires logging, provide a property logger : Logger that can be configured in the config methods. This should use the Logger base from the stdlib
• If your handler requires modifying the HTTP::Context, do so at the top of the handler so its clear what additions are being made
• Document the purpose of the handler. If there are other handlers that perform a similar task, provide the reason one might chose yours over the other
• Provide specs that cover the main functionality of your handler.

Contributing

1. Fork it ( https://github.com/kemalyst/crack/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am ‘Add some feature’)
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

Contributors

• drujensen Dru Jensen - creator, maintainer
• bigtunacan Joiey Seeley - contributor