Class: Faraday::Adapter::EMSynchrony

Inherits:
Faraday::Adapter show all
Defined in:
lib/faraday/adapter/em_synchrony.rb

Defined Under Namespace

Classes: Header

Constant Summary

Constants inherited from Faraday::Adapter

CONTENT_TYPE, DEFAULT_BOUNDARY, FORM_TYPE, MULTIPART_TYPE

Instance Method Summary collapse

Methods inherited from Faraday::Adapter

#create_multipart, #full_path_for, #has_multipart?, #process_body_for_request, #process_to_params

Methods included from Faraday::AutoloadHelper

#all_loaded_constants, #autoload_all, #load_autoloaded_constants, #lookup_module, #register_lookup_modules

Methods inherited from Middleware

#initialize, loaded?, setup_parallel_manager

Constructor Details

This class inherits a constructor from Faraday::Middleware

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/faraday/adapter/em_synchrony.rb', line 22

def call(env)
  process_body_for_request(env)
  
  request = EventMachine::HttpRequest.new(URI::parse(env[:url].to_s))
  
  options = {:head => env[:request_headers]}

  if env[:body]
    if env[:body].respond_to? :read
      options[:body] = env[:body].read
    else
      options[:body] = env[:body]
    end
  end

  if req = env[:request]
    if proxy = req[:proxy]
      uri = Addressable::URI.parse(proxy[:uri])
      options[:proxy] = {
        :host => uri.host,
        :port => uri.port
      }
      if proxy[:username] && proxy[:password]
        options[:proxy][:authorization] = [proxy[:username], proxy[:password]]
      end
    end

    # only one timeout currently supported by em http request
    if req[:timeout] or req[:open_timeout]
      options[:timeout] = [req[:timeout] || 0, req[:open_timeout] || 0].max
    end
  end

  client = nil
  block = lambda { request.send env[:method].to_s.downcase.to_sym, options }
  if !EM.reactor_running?
    EM.run {
      Fiber.new do
        client = block.call
        EM.stop
      end.resume
    }
  else
    client = block.call
  end

  env.update(:status           => client.response_header.http_status.to_i,
             :response_headers => Header.new(client),
             :body             => client.response)

  @app.call env
rescue Errno::ECONNREFUSED
  raise Error::ConnectionFailed, "connection refused"
end