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<!doctype html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv='X-UA-Compatible' content='IE=edge;chrome=1' />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="google-site-verification" content="qjqVOvRhHfsuDbLOvaAnj2mkUZJ9Xwzg84TMVXduvUc" />
<meta charset="UTF-8">
<title>Hyperloop - Tutorials, Videos & Quickstarts</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<script src="https://unpkg.com/react@15/dist/react.min.js"></script>
<script src="https://unpkg.com/react-dom@15/dist/react-dom.min.js"></script>
<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/marked/0.3.5/marked.min.js"></script>
<!-- Opal and Hyperloop -->
<script src="http://cdn.opalrb.org/opal/current/opal.min.js"></script>
<script src="https://rawgit.com/ruby-hyperloop/hyperloop-js/master/dist/opal.min.js"></script>
<script src="https://rawgit.com/ruby-hyperloop/hyperloop-js/master/dist/hyperloop.min.js"></script>
<script src="https://rawgit.com/ruby-hyperloop/hyperloop-js/master/dist/hyperloop-compiler.min.js"></script>
<!-- If you want local copies... -->
<!-- <script src="../../../javascripts/opal-compiler.js"></script> -->
<!-- <script src="../../../javascripts/hyperloop.js"></script> -->
<script src="https://npmcdn.com/tether@1.2.4/dist/js/tether.min.js"></script>
<script src="../../../javascripts/bootstrap.min.js"></script>
<script src="../../../javascripts/codemirror.js"></script>
<script src="../../../javascripts/ruby.js"></script>
<script src="../../../javascripts/matchbrackets.js"></script>
<script src="../../../javascripts/react_player.js"></script>
<script src="../../../javascripts/highlight.pack.js"></script>
<!-- Components are compiled by Hyperloop Express -->
<script type="text/ruby">
class CodeMirror < Hyperloop::Component
param :code, type: String
param :heading, default: "Code"
param :rows, type: Integer, default: 0
param :top_level_component, type: String
before_mount do
r=rand(2**256).to_s(36)[0..7]
@div_code = "code_#{r}"
@div_result = "result_#{r}"
end
after_mount do
# puts params.code
@editor = `CodeMirror(document.getElementById(#{@div_code}), {
value: #{params.code.to_s},
mode: 'text/x-ruby',
matchBrackets: true,
lineNumbers: false,
indentUnit: 2,
theme: 'github'
});`
`#{@editor}.on('change', #{lambda {on_change} })`
`#{@editor}.setSize(null, #{@editor}.defaultTextHeight()*#{params.rows})` unless params.rows == 0
execute_code
end
render(DIV) do
div.card {
div.card_header { params.heading }
div(id: @div_code)
div.card_header do
img(src: '../../../images/hyperloop-logo-small-white.png' , width:'25')
span { ' ' }
'Live editor results'
end
div.card_block(id: @div_result)
}
end
def on_change
execute_code
end
def execute_code
begin
code = `#{@editor}.getValue()`
# puts code
code += "\nElement['##{@div_result}'].render(#{params.top_level_component})"
compiled_code = Opal::Compiler.new(code).compile
`ReactDOM.unmountComponentAtNode(document.getElementById(#{@div_result}));`
# Dispatchers and Receivers example works but Steps example breaks
# Hyperloop::Context.reset!
# `eval(#{compiled_code})`
# Hyperloop::Application::Boot.run()
# Steps example works but Dispatchers and Receivers example breaks
`eval(#{compiled_code})`
Hyperloop::Context.reset!
Hyperloop::Application::Boot.run()
component = Module.const_get params.top_level_component
# we need to see if the component is valid - try checking if it can render static markup
# the following line generates: `undefined method to_n for SimpleComponent`
# if React.render_to_static_markup( component ).empty?
# invalid_component_message
# end
rescue Exception => e
@time_out = after(0.1) do
unable_to_compile_message e.message
end
end
end
def invalid_component_message
message = div.text_danger do
h3.text_danger {"Oops, invalid Component..."}
p { "Your Component has been rejected by React. A valid Component must have a render macro and return just one HTML element." }
end
Element["##{@div_result}"].render{ message }
end
def unable_to_compile_message reason
message = div.text_danger do
h3.text_danger {"Can't compile..."}
p { reason }
end
Element["##{@div_result}"].render{ message }
end
end
</script>
<script type="text/ruby">
Document.ready? do
Element.find('div.codemirror-live-edit').each do |mount_point|
heading = mount_point.attr('data-heading')
rows = mount_point.attr('data-rows')
top_level_component = mount_point.attr('data-top-level-component')
code = Element[mount_point].find('pre').text.strip
params = {code: code, top_level_component: top_level_component}
params = params.merge({heading: heading}) if heading
params = params.merge({rows: rows.to_i}) if rows
codemirror_component = Object.const_get('CodeMirror')
React.render(React.create_element(codemirror_component, params ), mount_point)
end
end
</script>
<script type="text/ruby">
class ToggleCodemirror < Hyperloop::Component
param :code, type: String
param :heading, default: "Code"
param :rows, type: Integer, default: 0
param :top_level_component, type: String
param :show_code
before_mount do
r=rand(2**256).to_s(36)[0..7]
@div_code = "code_#{r}"
@div_result = "result_#{r}"
end
after_mount do
# puts params.code
@editor = `CodeMirror(document.getElementById(#{@div_code}), {
value: #{params.code.to_s},
mode: 'text/x-ruby',
matchBrackets: true,
lineNumbers: false,
indentUnit: 2,
readOnly: true,
theme: 'github'
});`
`#{@editor}.setSize(null, #{@editor}.defaultTextHeight()*#{params.rows})` unless params.rows == 0
Element['.codediv'].hide('')
mutate.show_code false
end
render(DIV) do
div.card {
div.card_header do
div(class: 'row') do
div(class: 'col-md-6') do
img(src: '../../../images/hyperloop-logo-small-white.png' , width:'25')
span { ' ' }
span { params.heading }
end
div(class: 'col-md-6 align-right') do
toggle_link
end
end
end
div(id: @div_code, class: 'codediv')
}
end
def toggle_link
BUTTON(class: 'btn btn-info btn-sm') do
state.show_code ? "Click to hide code" : "Click to show code"
end.on(:click) do |ev|
mutate.show_code !state.show_code
state.show_code ? Element["##{@div_code}"].show('') : Element["##{@div_code}"].hide('')
end
end
end
</script>
<script type="text/ruby">
Document.ready? do
Element.find('div.togglecode').each do |mount_point|
heading = mount_point.attr('data-heading')
rows = mount_point.attr('data-rows')
top_level_component = mount_point.attr('data-top-level-component')
code = Element[mount_point].find('pre').text.strip
params = {code: code, top_level_component: top_level_component}
params = params.merge({heading: heading}) if heading
params = params.merge({rows: rows.to_i}) if rows
codemirror_component = Object.const_get('ToggleCodemirror')
React.render(React.create_element(codemirror_component, params ), mount_point)
end
end
</script>
<link href="../../../stylesheets/bootstrap.min.css" rel="stylesheet" />
<link href="../../../stylesheets/typography.css" rel="stylesheet" />
<link href="../../../stylesheets/override.css" rel="stylesheet" />
<link href="../../../stylesheets/divtable.css" rel="stylesheet" />
<!-- <link href="../../../stylesheets/code.css" rel="stylesheet" /> -->
<link href="../../../stylesheets/github.css" rel="stylesheet" />
<link href="../../../stylesheets/highlighting.css" rel="stylesheet" />
<link href="../../../stylesheets/codemirror.css" rel="stylesheet" />
<link href="../../../stylesheets/monokai-sublime.css" rel="stylesheet" />
<link rel="alternate" type="application/atom+xml" title="Atom Feed" href="/feed.xml" />
<!-- Favicons -->
<link rel="apple-touch-icon" sizes="180x180" href="../../../images/apple-touch-icon.png">
<link rel="icon" type="image/png" href="../../../images/favicon-32x32.png" sizes="32x32">
<link rel="icon" type="image/png" href="../../../images/favicon-16x16.png" sizes="16x16">
<link rel="manifest" href="/images/manifest.json">
<link rel="mask-icon" href="../../../images/safari-pinned-tab.svg" color="#e81176">
<meta name="theme-color" content="#ffffff">
</head>
<body>
<div class="navbarbackgroundcolor">
<div class="container">
<nav class="navbar navbar-ligh">
<button class="navbar-toggler hidden-sm-up" type="button" data-toggle="collapse" data-target="#exCollapsingNavbar2" aria-controls="exCollapsingNavbar2" aria-expanded="false" aria-label="Toggle navigation">
☰
</button>
<div class="collapse navbar-toggleable-xs" id="exCollapsingNavbar2">
<ul class="nav navbar-nav">
<li class="nav-item">
<a href="/" class="nav-link"><span class='navfirstletter'>H</span>yperloop</a>
</li>
<li class="nav-item">
<a href="/start/components" class="nav-link active"><span class='navfirstletter'>S</span>tart</a>
</li>
<li class="nav-item">
<a href="/installation" class="nav-link"><span class='navfirstletter'>I</span>nstallation</a>
</li>
<li class="nav-item">
<a href="/tutorials" class="nav-link"><span class='navfirstletter'>T</span>utorials</a>
</li>
<li class="nav-item">
<a href="/gems" class="nav-link"><span class='navfirstletter'>G</span>ems</a>
</li>
<li class="nav-item">
<a href="https://github.com/ruby-hyperloop" class="nav-link"><span class='navfirstletter'>G</span>ithub</a>
</li>
<li class="nav-item">
<a href="/tools" class="nav-link"><span class='navfirstletter'>T</span>ools</a>
</li>
<li class="nav-item">
<a href="/docs/architecture" class="nav-link"><span class='navfirstletter'>D</span>ocs</a>
</li>
<li class="nav-item">
<a href="/help" class="nav-link"><span class='navfirstletter'>H</span>elp</a>
</li>
<li class="nav-item">
<a href="/blog" class="nav-link"><span class='navfirstletter'>B</span>log</a>
</li>
<!-- <li class="nav-item">
<input type="text" name="search" />
</li> -->
</ul>
</div>
</nav>
</div>
</div>
<div class="jumbotron page-header">
<div class="container">
<div class="row hidden-sm-down">
<div class="col-md-2">
<div class="hyperlooplogo">
</div>
</div>
<div class="col-md-8">
<h1 class="display-4 project-name">Hyperloop</h1>
<h4 class="display-7 project-tagline">
Tutorials, screencasts & videos
</h4>
</div>
</div>
<div class="row hidden-md-up">
<div class="col-md-3">
<div class="hyperlooplogo">
</div>
</div>
<div class="col-md-9">
<h1 class="h1 project-name center-text">Hyperloop</h1>
</br>
<h2 class="h5 project-tagline center-text">
Tutorials, screencasts & videos
</h2>
</div>
</div>
</div>
</div>
<div class="page-header-underline">
<div class="container">
</div>
</div>
<div class="container">
<div class="row">
<div class="col-md-3 sidenavcol">
<ul class="nav">
<li class="nav-item"><strong><a href="/tutorials/hyperloopcomps">Hyperloop COMPS</a></strong></li>
<ul class="nav">
<li class="nav-item"><a href="/tutorials/hyperloopcomps/compstoreop-first">Simple COMPS App</a></li>
</ul>
<br>
<li class="nav-item"><strong><a href="/tutorials/hyperloopjs">Hyperloop.js</a></strong></li>
<ul class="nav">
<li class="nav-item"><a href="/tutorials/hyperloopjs/helloworld">Hello World</a></li>
<li class="nav-item"><a href="/tutorials/hyperloopjs/chatapp">Chat App</a></li>
</ul>
<br>
<li class="nav-item"><strong><a href="/tutorials/hyperlooprails">Hyperloop and Rails</a></strong></li>
<ul class="nav">
<li class="nav-item"><a href="/tutorials/hyperlooprails/helloworld">Hello World</a></li>
<li class="nav-item"><a href="/tutorials/hyperlooprails/todo-tutorial">Todo MVC</a></li>
<li class="nav-item"><a href="/tutorials/hyperlooprails/chatapp">Chat App</a></li>
<li class="nav-item"><a href="/tutorials/hyperlooprails/hyperloop-devise-tutorial">Devise</a></li>
<li class="nav-item"><a href="/tutorials/hyperlooprails/eventsplanner">Events planner</a></li>
<li class="nav-item"><a href="/tutorials/hyperlooprails/fivelettergame">Five letter word game</a></li>
<li class="nav-item"><a href="/tutorials/hyperlooprails/cloud9">Hyperloop and Cloud9</a></li>
<li class="nav-item"><a href="/tutorials/hyperlooprails/webpack">NPM and Webpack</a></li>
<li class="nav-item"><a href="/tutorials/hyperlooprails/hyperloop-rails-webpackergem-helloworld">Webpacker GEM</a></li>
<li class="nav-item"><a href="/tutorials/hyperlooprails/opalhotreloader">Opal Hot Reloader</a></li>
<li class="nav-item"><a href="/tutorials/hyperlooprails/productionmode">Production mode</a></li>
</ul>
<br>
<li class="nav-item"><strong><a href="/tutorials/hyperloopdeploy">Hyperloop deployment</a></strong></li>
<ul class="nav">
<li class="nav-item"><a href="/tutorials/hyperloopdeploy/deployvps">Deploying on VPS</a></li>
<li class="nav-item"><a href="/tutorials/hyperloopdeploy/deployheroku">Deploying on Heroku</a></li>
</ul>
<br>
<li class="nav-item"><strong><a href="/tutorials/opal">Opal</a></strong></li>
<br>
<li class="nav-item"><strong><a href="/tutorials/videos">Videos</a></strong></li>
</ul>
<div class="getstarted">
<br>
<hr>
<p>NEWS: RubyHyperloop is to be renamed Hyperstack. Come and see the work-in-progress site: </p>
<!-- <button type="button" class="btn btn-primary btn-lg btn-hyperlooppink" onclick="https://hyperstack.org';">https://hyperstack.org</button> -->
<a href='https://hyperstack.org'>https://hyperstack.org</a>
</div>
<br>
</div>
<div class="col-md-9 main-content">
<h2 id="npm-and-webpack-tutorial"><i class="flaticon-professor-teaching"></i><span class="bigfirstletter">N</span>pm and Webpack Tutorial</h2>
<p><img src="../../../images/tutorials/Hyperloop-Railswebpack.gif" class="imgborder"></p>
<p>You can find the complete source code of this tutorial here: </p>
<p><button type="button" class="btn btn-primary btn-lg btn-hyperlooptrace" onclick="location.href='https://github.com/ruby-hyperloop/hyperloop-rails-webpack-helloworld';">Hyperloop with Rails Webpack app Source code</button></p>
<h3 id="tutorial">Tutorial</h3>
<p>To set up your <strong>Hyperloop</strong> environment and continue this tutorial, please first follow the <br><br>
<button type="button" class="btn btn-primary btn-lg btn-hyperlooppink" onclick="location.href='/installation#rorsetup';">Hyperloop installation with Ruby On Rails tutorial</button></p>
<p>After <strong>Hyperloop</strong> has been installed properly we can go further:</p>
<p>We are going to setup <a href="https://webpack.js.org/">webpack</a> and implement a simple HelloWorld app to show how Hyperloop and <a href="https://webpack.js.org/">webpack</a> are running well together.</p>
<h4 id="part-1-webpack">Part 1 - Webpack</h4>
<h5 id="step-1-1-installing-and-setting-up-webpack">Step 1.1 - Installing and setting up Webpack:</h5>
<p>Run these three commands:</p>
<pre class="highlight plaintext"><code>npm init
</code></pre>
<p>Press enter at each prompt to leave the fields empty. Agree when asked if it is okay to write the package.json file. This will create an empty package.json (which is similar to a Gemfile) in your root folder.</p>
<pre class="highlight plaintext"><code>npm install webpack@3.8.1 --save-dev
</code></pre>
<p>This installs Webpack and creates a node_modules folder. This folder contains hundreds of JavaScript dependencies.</p>
<pre class="highlight plaintext"><code>npm install webpack@3.8.1 -g
</code></pre>
<p>This enables us to run Webpack from the command line.</p>
<h5 id="step-1-2-adding-libraries-into-webpack">Step 1.2 - Adding libraries into Webpack:</h5>
<p>We are going to install 4 libraries required by our application:
React, React-dom, Bootstrap and Bootswatch theme.</p>
<p>Run these commands:</p>
<pre class="highlight ruby"><code><span class="n">npm</span> <span class="n">install</span> <span class="n">react</span><span class="err">@</span><span class="mi">15</span><span class="o">.</span><span class="mi">6</span><span class="o">.</span><span class="mi">2</span> <span class="o">--</span><span class="n">save</span>
<span class="n">npm</span> <span class="n">install</span> <span class="n">react</span><span class="o">-</span><span class="n">dom</span><span class="err">@</span><span class="mi">15</span><span class="o">.</span><span class="mi">6</span><span class="o">.</span><span class="mi">2</span> <span class="o">--</span><span class="n">save</span>
<span class="n">npm</span> <span class="n">install</span> <span class="n">css</span><span class="o">-</span><span class="n">loader</span> <span class="n">file</span><span class="o">-</span><span class="n">loader</span> <span class="n">style</span><span class="o">-</span><span class="n">loader</span> <span class="n">url</span><span class="o">-</span><span class="n">loader</span> <span class="o">--</span><span class="n">save</span><span class="o">-</span><span class="n">dev</span>
<span class="n">npm</span> <span class="n">install</span> <span class="n">bootstrap</span> <span class="n">react</span><span class="o">-</span><span class="n">bootstrap</span> <span class="o">--</span><span class="n">save</span>
<span class="n">npm</span> <span class="n">install</span> <span class="n">bootswatch</span><span class="err">@</span><span class="mi">3</span><span class="o">.</span><span class="mi">3</span><span class="o">.</span><span class="mi">7</span>
</code></pre>
<h5 id="step-1-3-requiring-the-libraires">Step 1.3 - Requiring the libraires</h5>
<p>Create a <code>webpack</code> directory and then create 2 files:</p>
<pre class="highlight javascript"><code><span class="c1">//webpack/client_and_server.js</span>
<span class="nx">ReactDOM</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'react-dom'</span><span class="p">);</span>
<span class="nx">React</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'react'</span><span class="p">);</span>
<span class="nx">ReactBootstrap</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'react-bootstrap'</span><span class="p">);</span>
</code></pre><pre class="highlight javascript"><code><span class="c1">//webpack/client_only.js</span>
<span class="nx">require</span><span class="p">(</span><span class="s1">'bootswatch/superhero/bootstrap.min.css'</span><span class="p">);</span>
</code></pre>
<h5 id="step-1-4-updating-webpack-configuration-file">Step 1.4 - Updating webpack configuration file</h5>
<pre class="highlight javascript"><code><span class="c1">//webpack.config.js</span>
<span class="kd">var</span> <span class="nx">path</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s2">"path"</span><span class="p">);</span>
<span class="nx">module</span><span class="p">.</span><span class="nx">exports</span> <span class="o">=</span> <span class="p">{</span>
<span class="na">context</span><span class="p">:</span> <span class="nx">__dirname</span><span class="p">,</span>
<span class="na">entry</span><span class="p">:</span> <span class="p">{</span>
<span class="na">client_only</span><span class="p">:</span> <span class="s2">"./webpack/client_only.js"</span><span class="p">,</span>
<span class="na">client_and_server</span><span class="p">:</span> <span class="s2">"./webpack/client_and_server.js"</span>
<span class="p">},</span>
<span class="na">output</span><span class="p">:</span> <span class="p">{</span>
<span class="na">path</span><span class="p">:</span> <span class="nx">path</span><span class="p">.</span><span class="nx">join</span><span class="p">(</span><span class="nx">__dirname</span><span class="p">,</span> <span class="s1">'public'</span><span class="p">,</span> <span class="s1">'packs'</span><span class="p">),</span>
<span class="na">filename</span><span class="p">:</span> <span class="s2">"[name].js"</span><span class="p">,</span>
<span class="na">publicPath</span><span class="p">:</span> <span class="s2">""</span>
<span class="p">},</span>
<span class="na">module</span><span class="p">:</span> <span class="p">{</span>
<span class="na">rules</span><span class="p">:</span> <span class="p">[</span>
<span class="p">{</span> <span class="na">test</span><span class="p">:</span> <span class="sr">/</span><span class="se">\.</span><span class="sr">css$/</span><span class="p">,</span>
<span class="na">use</span><span class="p">:</span> <span class="p">[</span>
<span class="p">{</span>
<span class="na">loader</span><span class="p">:</span> <span class="s2">"style-loader"</span>
<span class="p">},</span>
<span class="p">{</span>
<span class="na">loader</span><span class="p">:</span> <span class="s2">"css-loader"</span>
<span class="p">}</span>
<span class="p">]</span>
<span class="p">},</span>
<span class="p">{</span> <span class="na">test</span><span class="p">:</span> <span class="sr">/</span><span class="se">\.(</span><span class="sr">woff|woff2</span><span class="se">)(\?</span><span class="sr">v=</span><span class="se">\d</span><span class="sr">+</span><span class="se">\.\d</span><span class="sr">+</span><span class="se">\.\d</span><span class="sr">+</span><span class="se">)?</span><span class="sr">$/</span><span class="p">,</span>
<span class="na">loader</span><span class="p">:</span> <span class="s1">'url-loader?limit=10000&mimetype=application/font-woff'</span>
<span class="p">},</span>
<span class="p">{</span> <span class="na">test</span><span class="p">:</span> <span class="sr">/</span><span class="se">\.</span><span class="sr">ttf</span><span class="se">(\?</span><span class="sr">v=</span><span class="se">\d</span><span class="sr">+</span><span class="se">\.\d</span><span class="sr">+</span><span class="se">\.\d</span><span class="sr">+</span><span class="se">)?</span><span class="sr">$/</span><span class="p">,</span>
<span class="na">loader</span><span class="p">:</span> <span class="s1">'url-loader?limit=10000&mimetype=application/octet-stream'</span>
<span class="p">},</span>
<span class="p">{</span> <span class="na">test</span><span class="p">:</span> <span class="sr">/</span><span class="se">\.</span><span class="sr">eot</span><span class="se">(\?</span><span class="sr">v=</span><span class="se">\d</span><span class="sr">+</span><span class="se">\.\d</span><span class="sr">+</span><span class="se">\.\d</span><span class="sr">+</span><span class="se">)?</span><span class="sr">$/</span><span class="p">,</span>
<span class="na">loader</span><span class="p">:</span> <span class="s1">'file-loader'</span>
<span class="p">},</span>
<span class="p">{</span> <span class="na">test</span><span class="p">:</span> <span class="sr">/</span><span class="se">\.</span><span class="sr">svg</span><span class="se">(\?</span><span class="sr">v=</span><span class="se">\d</span><span class="sr">+</span><span class="se">\.\d</span><span class="sr">+</span><span class="se">\.\d</span><span class="sr">+</span><span class="se">)?</span><span class="sr">$/</span><span class="p">,</span>
<span class="na">loader</span><span class="p">:</span> <span class="s1">'url-loader?limit=10000&mimetype=image/svg+xml'</span>
<span class="p">}</span>
<span class="p">]</span>
<span class="p">},</span>
<span class="na">resolve</span><span class="p">:</span> <span class="p">{</span>
<span class="na">modules</span><span class="p">:</span> <span class="p">[</span>
<span class="nx">path</span><span class="p">.</span><span class="nx">join</span><span class="p">(</span><span class="nx">__dirname</span><span class="p">,</span> <span class="s2">"src"</span><span class="p">),</span>
<span class="s2">"node_modules"</span>
<span class="p">]</span>
<span class="p">},</span>
<span class="p">};</span>
</code></pre>
<h5 id="step-1-5-updating-webpack-bundle">Step 1.5 - Updating webpack bundle</h5>
<p>Run the command:</p>
<pre class="highlight plaintext"><code>webpack
</code></pre>
<p><i class="flaticon-signs"></i> In the future, when you will add a new library with webpack, it can happen that it is not correctly loaded. So, in this case, we advise to delete the <code>node_modules</code> directory, re-install libraires, re-generate the webpack file and clear Hyperloop cache and browser cache:</p>
<pre class="highlight plaintext"><code>rm -rf node_modules
npm install
rm -rf tmp/cache
webpack
Clear Browser cache
</code></pre>
<h5 id="step-1-6-configuring-rails-asset-pipeline">Step 1.6 - Configuring Rails asset pipeline:</h5>
<pre class="highlight ruby"><code><span class="c1">#config/application.rb</span>
<span class="n">config</span><span class="p">.</span><span class="nf">assets</span><span class="p">.</span><span class="nf">paths</span> <span class="o"><<</span> <span class="o">::</span><span class="no">Rails</span><span class="p">.</span><span class="nf">root</span><span class="p">.</span><span class="nf">join</span><span class="p">(</span><span class="s1">'public'</span><span class="p">,</span> <span class="s1">'packs'</span><span class="p">).</span><span class="nf">to_s</span>
</code></pre>
<h5 id="step-1-7-adding-pack-files-to-the-asset-pipeline">Step 1.7 - Adding pack files to the asset pipeline:</h5>
<p>By using the Hyperloop configuration file we can directly tell our app to include the pack files in the asset pipeline:</p>
<pre class="highlight ruby"><code><span class="no">Hyperloop</span><span class="p">.</span><span class="nf">configuration</span> <span class="k">do</span> <span class="o">|</span><span class="n">config</span><span class="o">|</span>
<span class="n">config</span><span class="p">.</span><span class="nf">transport</span> <span class="o">=</span> <span class="ss">:simple_poller</span>
<span class="n">config</span><span class="p">.</span><span class="nf">import</span> <span class="s1">'client_and_server'</span>
<span class="n">config</span><span class="p">.</span><span class="nf">import</span> <span class="s1">'client_only'</span><span class="p">,</span> <span class="ss">client_only: </span><span class="kp">true</span>
<span class="k">end</span>
</code></pre>
<h4 id="part-2-implementing-the-helloworld-app">Part 2 - Implementing the helloworld app</h4>
<h5 id="step-2-1-creating-the-helloworld-component">Step 2.1 - Creating the Helloworld component</h5>
<p>Run the hyperloop generator:</p>
<pre class="highlight plaintext"><code>rails g hyper:component Helloworld
</code></pre>
<p>You can view the new Component created in <code>/app/hyperloop/components/</code></p>
<h5 id="step-2-2-updating-helloworld-component-code">Step 2.2 - Updating Helloworld component code</h5>
<p>Copy and paste this code into the component file you've just generated:</p>
<pre class="highlight ruby"><code><span class="c1">#/app/hyperloop/components/helloworld.rb</span>
<span class="k">class</span> <span class="nc">Helloworld</span> <span class="o"><</span> <span class="no">Hyperloop</span><span class="o">::</span><span class="no">Component</span>
<span class="n">state</span> <span class="ss">show_field: </span><span class="kp">false</span>
<span class="n">state</span> <span class="ss">field_value: </span><span class="s2">""</span>
<span class="n">render</span><span class="p">(</span><span class="no">DIV</span><span class="p">)</span> <span class="k">do</span>
<span class="n">show_button</span>
<span class="no">DIV</span><span class="p">(</span><span class="ss">class: </span><span class="s1">'formdiv'</span><span class="p">)</span> <span class="k">do</span>
<span class="n">show_input</span>
<span class="no">H1</span> <span class="p">{</span> <span class="s2">"</span><span class="si">#{</span><span class="n">state</span><span class="p">.</span><span class="nf">field_value</span><span class="si">}</span><span class="s2">"</span> <span class="p">}</span>
<span class="k">end</span> <span class="k">if</span> <span class="n">state</span><span class="p">.</span><span class="nf">show_field</span>
<span class="k">end</span>
<span class="k">def</span> <span class="nf">show_button</span>
<span class="no">BUTTON</span><span class="p">(</span><span class="ss">class: </span><span class="s1">'btn btn-info'</span><span class="p">)</span> <span class="k">do</span>
<span class="n">state</span><span class="p">.</span><span class="nf">show_field</span> <span class="p">?</span> <span class="s2">"Click to hide HelloWorld input field"</span> <span class="p">:</span> <span class="s2">"Click to show HelloWorld input field"</span>
<span class="k">end</span><span class="p">.</span><span class="nf">on</span><span class="p">(</span><span class="ss">:click</span><span class="p">)</span> <span class="p">{</span> <span class="n">mutate</span><span class="p">.</span><span class="nf">show_field</span> <span class="o">!</span><span class="n">state</span><span class="p">.</span><span class="nf">show_field</span> <span class="p">}</span>
<span class="k">end</span>
<span class="k">def</span> <span class="nf">show_input</span>
<span class="no">H4</span> <span class="k">do</span>
<span class="n">span</span><span class="p">{</span><span class="s1">'Please type '</span><span class="p">}</span>
<span class="n">span</span><span class="p">.</span><span class="nf">colored</span> <span class="p">{</span><span class="s1">'Hello World'</span><span class="p">}</span>
<span class="n">span</span><span class="p">{</span><span class="s1">' in the input field below :'</span><span class="p">}</span>
<span class="n">br</span> <span class="p">{}</span>
<span class="n">span</span><span class="p">{</span><span class="s1">'Or anything you want (^̮^)'</span><span class="p">}</span>
<span class="k">end</span>
<span class="no">INPUT</span><span class="p">(</span><span class="ss">type: :text</span><span class="p">,</span> <span class="ss">class: </span><span class="s1">'form-control'</span><span class="p">).</span><span class="nf">on</span><span class="p">(</span><span class="ss">:change</span><span class="p">)</span> <span class="k">do</span> <span class="o">|</span><span class="n">e</span><span class="o">|</span>
<span class="n">state</span><span class="p">.</span><span class="nf">field_value!</span> <span class="n">e</span><span class="p">.</span><span class="nf">target</span><span class="p">.</span><span class="nf">value</span>
<span class="k">end</span>
<span class="k">end</span>
<span class="k">def</span> <span class="nf">show_text</span>
<span class="no">H1</span> <span class="p">{</span> <span class="s2">"</span><span class="si">#{</span><span class="n">state</span><span class="p">.</span><span class="nf">field_value</span><span class="si">}</span><span class="s2">"</span> <span class="p">}</span>
<span class="k">end</span>
<span class="k">end</span>
</code></pre>
<h5 id="step-2-3-creating-the-controller">Step 2.3 - Creating the controller</h5>
<p>Create a <code>home_controller.rb</code> file, manually or with the command <code>rails g controller Home helloworld --skip-javascripts</code>:</p>
<pre class="highlight ruby"><code><span class="c1">#app/controllers/home_controller.rb</span>
<span class="k">class</span> <span class="nc">HomeController</span> <span class="o"><</span> <span class="no">ApplicationController</span>
<span class="k">def</span> <span class="nf">helloworld</span>
<span class="k">end</span>
<span class="k">end</span>
</code></pre>
<h5 id="step-2-4-updating-the-routes-rb-file">Step 2.4 - Updating the routes.rb file</h5>
<pre class="highlight ruby"><code><span class="c1">#config/routes.rb</span>
<span class="n">root</span> <span class="s1">'home#helloworld'</span>
</code></pre>
<h5 id="step-2-5-creating-the-helloworld-view-file">Step 2.5 - Creating the helloworld view file:</h5>
<pre class="highlight erb"><code>#app/vies/home/helloworld.html.erb
<span class="nt"><div</span> <span class="na">class=</span><span class="s">"hyperloophelloword"</span><span class="nt">></span>
<span class="nt"><div></span>
<span class="cp"><%=</span> <span class="n">react_component</span> <span class="s1">'::Helloworld'</span><span class="p">,</span> <span class="p">{},</span> <span class="p">{</span> <span class="ss">prerender: </span><span class="kp">true</span> <span class="p">}</span> <span class="cp">%></span>
<span class="nt"></div></span>
<span class="nt"></div></span>
</code></pre>
<h5 id="step-2-6-styling">Step 2.6 - Styling</h5>
<p>We will add a <strong>Hyperloop</strong> logo</p>
<pre class="highlight erb"><code>#app/vies/home/helloworld.html.erb
<span class="nt"><div</span> <span class="na">class=</span><span class="s">"hyperloophelloword"</span><span class="nt">></span>
<span class="nt"><img</span> <span class="na">src=</span><span class="s">"https://rawgit.com/ruby-hyperloop/hyperloop-js-helloworld/master/hyperloop-logo-medium-white.png?raw=true"</span><span class="nt">></span>
<span class="nt"><div></span>
<span class="cp"><%=</span> <span class="n">react_component</span> <span class="s1">'::Helloworld'</span><span class="p">,</span> <span class="p">{},</span> <span class="p">{</span> <span class="ss">prerender: </span><span class="kp">true</span> <span class="p">}</span> <span class="cp">%></span>
<span class="nt"></div></span>
<span class="nt"></div></span>
</code></pre>
<p>And load 1 small sample stylesheet :</p>
<pre class="highlight erb"><code>#app/views/layouts/application.html.erb
<span class="cp"><!DOCTYPE html></span>
<span class="nt"><html></span>
<span class="nt"><head></span>
<span class="nt"><title></span>HyperloopRailsHelloworld<span class="nt"></title></span>
<span class="cp"><%=</span> <span class="n">csrf_meta_tags</span> <span class="cp">%></span>
<span class="nt"><link</span> <span class="na">rel=</span><span class="s">"stylesheet"</span> <span class="na">href=</span><span class="s">"https://rawgit.com/ruby-hyperloop/hyperloop-js-helloworld/master/style.css"</span> <span class="nt">></span>
<span class="cp"><%=</span> <span class="n">stylesheet_link_tag</span> <span class="s1">'application'</span><span class="p">,</span> <span class="ss">media: </span><span class="s1">'all'</span><span class="p">,</span> <span class="s1">'data-turbolinks-track'</span><span class="p">:</span> <span class="s1">'reload'</span> <span class="cp">%></span>
<span class="cp"><%=</span> <span class="n">javascript_include_tag</span> <span class="s1">'application'</span><span class="p">,</span> <span class="s1">'data-turbolinks-track'</span><span class="p">:</span> <span class="s1">'reload'</span> <span class="cp">%></span>
<span class="nt"></head></span>
<span class="nt"><body></span>
<span class="cp"><%=</span> <span class="k">yield</span> <span class="cp">%></span>
<span class="nt"></body></span>
<span class="nt"></html></span>
</code></pre>
<h5 id="final-step-running-your-app">Final step - Running your app:</h5>
<p>Start your Rails server and browse <code>http://localhost:3000</code>.</p>
<p>You can find the complete source code of this tutorial here: </p>
<p><button type="button" class="btn btn-primary btn-lg btn-hyperlooptrace" onclick="location.href='https://github.com/ruby-hyperloop/hyperloop-rails-webpack-helloworld';">Hyperloop with Rails Webpack app Source code</button></p>
<div>
<p>The <strong>best way</strong> to get help and contribute is to join our Gitter Chat</p>
<button type="button" class="btn btn-primary btn-lg btn-hyperloopgitter" onclick="location.href='https://gitter.im/ruby-hyperloop/chat';">Gitter Chat</button>
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