API implementation

api.rb

#!/usr/bin/env ruby

require 'grape'
require 'sequel'

Encoding.default_external = 'UTF-8'

module API

  class ReadOnly < Grape::API
    DB = Sequel.connect(eval(
        File.open("config/db.rb", 'r') { |f| f.read }
      )
    )

    get :board do
      DB[:boards].all.to_json
    end

    resource :board do
      params do
        requires :slug, type: String, desc: "Board name"
      end
      route_param :slug do
        get do
          @board = DB[:boards].where(:slug => params[:slug]).get(:id)
          DB[:threads].where(:board_id => @board).all
        end
        
        resource :thread do
          params do
            requires :id, type: Integer, desc: "Thread id"
          end
          route_param :id do
            get do
              @thread = DB[:threads].where(:id => params[:id]).get(:id)
              @board = DB[:boards].where(:slug => params[:slug]).get(:id)
              DB[:posts].where(:board_id => @board, :thread_id => @thread).all
            end
          end
        end
      end
    end
  end
end

config.ru

#!/usr/bin/env ruby

require File.expand_path(File.dirname(__FILE__) + '/hive.rb')
require File.expand_path(File.dirname(__FILE__) + '/api.rb')

Hive::BBS::DB.disconnect

run Rack::Cascade.new [API::ReadOnly, Hive::BBS]

gem install grape