3 # Sends requests to a Rack app.
9 # [200, {'Content-Type' => 'text/html'}, ["hello world"]]
13 # Faraday.new do |conn|
14 # conn.adapter :rack, MyRackApp.new
16 class Rack < Faraday::Adapter
17 dependency 'rack/test'
19 # not prefixed with "HTTP_"
20 SPECIAL_HEADERS = %w[ CONTENT_LENGTH CONTENT_TYPE ]
22 def initialize(faraday_app, rack_app)
24 mock_session = ::Rack::MockSession.new(rack_app)
25 @session = ::Rack::Test::Session.new(mock_session)
31 :method => env[:method],
32 :input => env[:body].respond_to?(:read) ? env[:body].read : env[:body],
33 'rack.url_scheme' => env[:url].scheme
36 env[:request_headers].each do |name, value|
37 name = name.upcase.tr('-', '_')
38 name = "HTTP_#{name}" unless SPECIAL_HEADERS.include? name
39 rack_env[name] = value
40 end if env[:request_headers]
42 timeout = env[:request][:timeout] || env[:request][:open_timeout]
44 Timer.timeout(timeout, Faraday::Error::TimeoutError) { execute_request(env, rack_env) }
46 execute_request(env, rack_env)
49 save_response(env, response.status, response.body, response.headers)
53 def execute_request(env, rack_env)
54 @session.request(env[:url].to_s, rack_env)