CODEWITHSUNDEEP
ruby-on-railsrack
user782220
user782220

Reputation: 11187

How to create rack application to be used by Rails?

Rails itself is based around multiple independent processes that are stateless inbetween requests. I need to add a stateful centralized service (a game automatcher) to my Rails app.

From what little I know I should make that stateful service a rack application. Is there some tutorial out there on how to make a rack application and also importantly how to communicate with it from Rails. What is the idiomatic way to deploy it with Rails and the idiomatic place to put it in my git Rails codebase?

Upvotes: 4

Views: 240

Answers (2)

user782220
user782220

Reputation: 11187

I got my question answered in another question:

How to read POST data in rack request

require 'json'

class Greeter
  def call(env)
    req = Rack::Request.new(env)
    if req.post?
      puts req.POST()
    end
    [200, {"Content-Type" => "application/json"}, [{x:"Hello World!"}.to_json]]
  end
end

run Greeter.new

and use JSON.parse( req.body.read ) to parse POST data.

Upvotes: 2

m_x
m_x

Reputation: 12564

Another option other than rack is to daemonize your app.

Upvotes: 0

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