class Rack::Config

Rack::Config modifies the environment using the block given during initialization.

Example:

use Rack::Config do |env|
  env['my-key'] = 'some-value'
end

Source

# File lib/rack/config.rb, line 12
def initialize(app, &block)
  @app = app
  @block = block
end

Source

# File lib/rack/config.rb, line 17
def call(env)
  @block.call(env)
  @app.call(env)
end