ruby - Calling Sinatra from within Sinatra

Question

I have a Sinatra based REST service app and I would like to call one of the resources from within one of the routes, effectively composing one resource from another. E.g.

get '/someresource' do
  otherresource = get '/otherresource'
  # do something with otherresource, return a new resource
end

get '/otherresource' do
  # etc.
end

A redirect will not work since I need to do some processing on the second resource and create a new one from it. Obviously I could a) use RestClient or some other client framework or b) structure my code so all of the logic for otherresource is in a method and just call that, however, it feels like it would be much cleaner if I could just re-use my resources from within Sinatra using their DSL.

Answer 1

Another option (I know this isn't answering your actual question) is to put your common code (even the template render) within a helper method, for example:

helpers do
  def common_code( layout = true )
    @title = 'common'
    erb :common, :layout => layout
  end
end

get '/foo' do
  @subtitle = 'foo'
  common_code
end

get '/bar' do
  @subtitle = 'bar'
  common_code
end

get '/baz' do
  @subtitle = 'baz'
  @common_snippet = common_code( false )
  erb :large_page_with_common_snippet_injected
end