class Faraday::Adapter::Rack

end
conn.adapter :rack, MyRackApp.new
Faraday.new do |conn|
end
end
[200, {‘Content-Type’ => ‘text/html’}, [“hello world”]]
def call(env)
class MyRackApp
Examples
Sends requests to a Rack app.

def call(env) 

def call(env)
  super
  rack_env = {
    :method => env[:method],
    :input  => env[:body].respond_to?(:read) ? env[:body].read : env[:body],
    'rack.url_scheme' => env[:url].scheme
  }
  env[:request_headers].each do |name, value|
    name = name.upcase.tr('-', '_')
    name = "HTTP_#{name}" unless SPECIAL_HEADERS.include? name
    rack_env[name] = value
  end if env[:request_headers]
  timeout  = env[:request][:timeout] || env[:request][:open_timeout]
  response = if timeout
    Timer.timeout(timeout, Faraday::Error::TimeoutError) { execute_request(env, rack_env) }
  else
    execute_request(env, rack_env)
  end
  save_response(env, response.status, response.body, response.headers)
  @app.call env
end

def execute_request(env, rack_env) 

def execute_request(env, rack_env)
  @session.request(env[:url].to_s, rack_env)
end

def initialize(faraday_app, rack_app) 

def initialize(faraday_app, rack_app)
  super(faraday_app)
  mock_session = ::Rack::MockSession.new(rack_app)
  @session     = ::Rack::Test::Session.new(mock_session)
end