Add a stimulus JS hello world

README.md

@@ -14,6 +14,7 @@ See some examples of how the UniRails library can be used
 -  [Todos app (JSON API)](/examples/todos-api.rb)
 -  [Todos app (Rails scaffold)](/examples/todos-scaffold.rb) based off `bin/rails g scaffold todo name completed_at:datetime`
 -  [Todos app (Hotwire)](/examples/todos-hotwire.rb) based off online article: [turbo-rails-101-todo-list](https://www.colby.so/posts/turbo-rails-101-todo-list) by David Colby
+-  [App using StimulusJS](/examples/stimulus-app.rb) 
 -  [App using Puma server](/examples/server-puma-app.rb) 
 -  [App using Falcon server](/examples/server-falcon-app.rb)
 

examples/stimulus-app.rb

@@ -0,0 +1,43 @@
+# Run the application
+#   $ ruby hello-world.rb
+
+ENV['SECRET_KEY_BASE'] = 'my_secret_key_base'
+
+require "bundler/inline"
+
+gemfile(true) do
+  source "https://rubygems.org"
+  gem 'uni_rails'
+end
+
+require 'uni_rails'
+
+UniRails::App.routes.append do
+  root 'pages#index'
+end
+
+UniRails.import_maps(
+  'stimulus' => 'https://unpkg.com/@hotwired/stimulus/dist/stimulus.js'
+)
+
+UniRails.javascript <<~JAVASCRIPT
+  import { Application, Controller } from "stimulus"
+  window.Stimulus = Application.start()
+
+  Stimulus.register("hello", class extends Controller {
+    connect() {
+      console.log("hello world")
+    }
+  })
+JAVASCRIPT
+
+class PagesController < ActionController::Base
+  layout 'application'
+  def index;end
+end
+
+UniRails.register_view "pages/index.html.erb", <<~HTML
+  <div data-controller="hello">Check out the dev console to see "hello world"</div>
+HTML
+
+UniRails.run(Port: 3000)