Architecture for a modular, component-based Sinatra Application

Question

I\'m working on a Sinatra app that contains about 10 different components of functionality. We\'d like to be able to mix and match these components into separate instances of t

Answer 1

This is similar to include's proposal, but it doesn't require access to the rackup file.

Write your various Handlers like:

class FoodHandler < Sinatra::Base
  get '/chunky/:food' do
    "Chunky #{params[:food]}!"
  end
end

Then in your main application file:

require './lib/handlers/food_handler.rb'

class Main < Sinatra::Base
  enable :sessions
  ... bla bla bla
  use FoodHandler
end

I've used this kind of structure to build some fairly complex Sinatra apps. It scales just as well as Rails.

EDIT

To have your config file define the routes, you could do something like this:

class PlacesHandler < Sinatra::Base
  # Given your example, this would define 'places/paris' and 'places/losangeles'
  CONFIG['components'].select { |c| c['compontent_type'] == 'Mapper' }.each do |c|
    get c['route'] do
      @latitude = c['component_settings']['latitude']
      @longitude = c['component_settings']['longitude']
    end
  end
end

Answer 2

TIMTOWTDI - There's_more_than_one_way_to_do_it :) and that is one. But in fact I use another way. I use Sinatra/Base to dev modular apps.

I have simgle routes to each app.

# config.ru file

require 'bundler/setup' Bundler.require(:default)

require File.dirname(__FILE__) + "/main.rb"

map "/" { run BONES::Main }

map "/dashboard" { run BONES::Dashboard }

map "/app1" { run BONES::App1 }

You can have variable sets for each instance. You can develop each 'component' on its Module.

require File.dirname(__FILE__) + "/lib/helpers.rb"

module BONES

  class Main < Sinatra::Base 
    helpers XIXA::Helpers

    configure :development do
      enable  :sessions, :clean_trace, :inline_templates
      disable :logging, :dump_errors
      set :static, true
      set :public, 'public'
    end

    enable :static, :session
    set :root, File.dirname(__FILE__)
    set :custom_option, 'hello'

    set :haml, { :format => :html5 }

    #...

That a look here. http://codex.heroku.com/

have fun :)