jam-cloud/web/config/initializers/rabl_init.rb

class PrettyJson
  def self.dump(object)
    JSON.pretty_generate(object, {:indent => "  "})
  end
end

Rabl.configure do |config|
  # Commented as these are defaults
  # config.cache_all_output = false
  # config.cache_sources = Rails.env != 'development' # Defaults to false
  # config.cache_engine = Rabl::CacheEngine.new # Defaults to Rails cache
  # config.escape_all_output = false
  # config.json_engine = nil # Any multi_json engines or a Class with #encode method
  # config.json_engine = PrettyJson if Rails.env.development?
  # config.msgpack_engine = nil # Defaults to ::MessagePack
  # config.bson_engine = nil # Defaults to ::BSON
  # config.plist_engine = nil # Defaults to ::Plist::Emit
  config.include_json_root = false
  # config.include_msgpack_root = true
  # config.include_bson_root = true
  # config.include_plist_root = true
  # config.include_xml_root  = false
  config.include_child_root = false
  # config.enable_json_callbacks = false
  # config.xml_options = { :dasherize  => true, :skip_types => false }
  config.view_paths << Rails.root.join('app/views')
end