Class: Firehose::Rack::App

Inherits:
Object
  • Object
show all
Defined in:
lib/firehose/rack/app.rb

Overview

Acts as the glue between the HTTP/WebSocket world and the Firehose::Server class, which talks directly to the Redis server. Also dispatches between HTTP and WebSocket transport handlers depending on the clients’ request.

Instance Method Summary collapse

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/firehose/rack/app.rb', line 7

def call(env)
  # Cache the parsed request so we don't need to re-parse it when we pass
  # control onto another app.
  req     = env['parsed_request'] ||= ::Rack::Request.new(env)
  method  = req.request_method

  case method
  when 'PUT'
    # Firehose::Client::Publisher PUT's payloads to the server.
    publisher.call(env)
  when 'HEAD' 
    # HEAD requests are used to prevent sockets from timing out
    # from inactivity
    ping.call(env)
  else
    # TODO - 'harden' this up with a GET request and throw a "Bad Request" 
    # HTTP error code. I'd do it now but I'm in a plane and can't think of it.
    consumer.call(env)
  end
end