Question

If I have a config.ru file like this:

def my_method
  1+2
end

require 'my_sinatra_app'

run Sinatra::Application

Calling my_method from within my_sinatra_app.rb returns “undefined method `my_method’ for main:Object“.

As a top-level method it should be accessible from everywhere; why is my_method not accessible from within my_sinatra_app.rb?

Answer 1

config.ru is instance_evaled in a Rack::Builder, so the methods you define there are not in the Top level scope. If you want to have them as top level methods, you could try putting them in another file and requireing them from config.ru.

ex config.ru

p self # => #<Rack::Builder:0x1234123412 @ins=[]>

run lambda {|e|[200,{},[""]]}