Redmine/app/views/projects/show.api.rsb

api.project do
  api.id          @project.id
  api.name        @project.name
  api.identifier  @project.identifier
  api.description @project.description
  api.homepage    @project.homepage
  api.parent(:id => @project.parent.id, :name => @project.parent.name) if @project.parent && @project.parent.visible?
  api.status      @project.status

  render_api_custom_values @project.visible_custom_field_values, api

  api.created_on @project.created_on
  api.updated_on @project.updated_on

  api.array :trackers do
    @project.trackers.each do |tracker|
      api.tracker(:id => tracker.id, :name => tracker.name)
    end
  end if include_in_api_response?('trackers')

  api.array :issue_categories do
    @project.issue_categories.each do |category|
      api.issue_category(:id => category.id, :name => category.name)
    end
  end if include_in_api_response?('issue_categories')
end