A rails controller to deal with angular templates.

angular_templates_controller.rb

# Just put your erb, haml, slim, etc. templates in app/views/angular_templates/my_template_name.
# For example your templatePath could be `articles/show` and your template
# would be app/views/angular_templates/articles/show.html.erb

class AngularTemplatesController < ApplicationController
  def show
    path = params[:template_path]
    template_dir = File.join(Rails.root, "app", "views", "angular_templates")
    templates = Dir.glob("#{template_dir}/**/*").map { |file|
      file.sub(/.*?\/angular_templates\/(.+)\.html\.slim/, '\1')
    }
    if templates.include?(path)
      render "angular_templates/#{path}", layout: false
    else
      render status: :unprocessible_entity, text: "ERROR"
    end
  end
end

routes.rb

MyApp::Application.routes.draw do
  get "angular_templates/*template_path", to: "angular_templates#show"
end