Methods

Rack::Cache

HTTP Caching For Rack

Rack::Cache is suitable as a quick, drop-in component to enable HTTP caching for Rack-enabled applications that produce freshness (Expires, Cache-Control) and/or validation (Last-Modified, ETag) information.

Usage

Create with default options:

  require 'rack/cache'
  Rack::Cache.new(app, :verbose => true, :entitystore => 'file:cache')

Within a rackup file (or with Rack::Builder):

  require 'rack/cache'
  use Rack::Cache do
    set :verbose, true
    set :metastore, 'memcached://localhost:11211/meta'
    set :entitystore, 'file:/var/cache/rack'
  end
  run app

Public Class Methods

new(backend, options={}, &b) click to toggle source

Create a new Rack::Cache middleware component that fetches resources from the specified backend application. The options Hash can be used to specify default configuration values (see attributes defined in Rack::Cache::Options for possible key/values). When a block is given, it is executed within the context of the newly create Rack::Cache::Context object.

    # File lib/rack/cache.rb, line 42
42:   def self.new(backend, options={}, &b)
43:     Context.new(backend, options, &b)
44:   end

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