I'm very new with Rack and I'm playing around with it, I would love to share some session or hash table among all my rack apps,
Let's say I have the following config.ru
require "rack"
require "./my_app.rb"
require "./auth.rb"
use Rack::Session::Pool, :domain => 'example.com', :expire_after => 60 * 60 * 24
use Auth
run MyApp.new
I want Auth to check user_id in memory, if the request for the first time, then to fitch the data from the db, next time the request with the same id will not trigger User.find, I don't mind any kind of implementation like shared Hash or anything but for this example I used session[], I would highly appreciate it to give me any tip of how to make things work, I'm not looking for real authentication here rather than to share a key among so many ruby processes.
Let's assume that I will run 10 instances of thin rack under nginx, so I would love to share the session/hash with all the processes.
And auth.rb :
class Auth
def initialize(app)
@app = app
end
def call(env)
@request = Rack::Request.new(env)
# here I want to find a way to search for key user_id and if I find it do nothing otherwise to set the value for the key
session[:user_id] ||= User.find(request.params[:user_id])
@app.call(env)
end
end
