314 lines
18 KiB
HTML
314 lines
18 KiB
HTML
<!doctype html>
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<!--[if lt IE 7]> <html class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
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<title>Frontend development - Home Assistant</title>
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<meta name="author" content="Home Assistant">
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<meta name="description" content="Tips and hints if you are starting on Home Assistant frontend development">
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<meta name="viewport" content="width=device-width">
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<link rel="canonical" href="https://home-assistant.io/developers/frontend/">
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<meta property="og:title" content="Frontend development">
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<meta property="og:site_name" content="Home Assistant">
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<meta property="og:url" content="https://home-assistant.io/developers/frontend/">
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<meta property="og:type" content="website">
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<meta property="og:description" content="Tips and hints if you are starting on Home Assistant frontend development">
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<meta name="twitter:image" content="https://home-assistant.io/images/default-social.png">
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<link href="/stylesheets/screen.css" media="screen, projection" rel="stylesheet">
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<link href="/atom.xml" rel="alternate" title="Home Assistant" type="application/atom+xml">
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<body >
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<div class="grid">
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<div class="grid__item three-tenths lap-two-sixths palm-one-whole ha-title">
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<a href="/" class="site-title">
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<img width='40' src='/demo/favicon-192x192.png'>
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<span>Home Assistant</span>
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</a>
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<div class="grid__item seven-tenths lap-four-sixths palm-one-whole">
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<input type="checkbox" id="toggle">
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<label for="toggle" class="toggle" data-open="Main Menu" data-close="Close Menu"></label>
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<ul class="menu pull-right">
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<li><a href="/getting-started/">Getting started</a></li>
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<li><a href="/components/">Components</a></li>
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<li><a href="/docs/">Docs</a></li>
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<li><a href="/cookbook/">Examples</a></li>
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<li><a href="/developers/">Developers</a></li>
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<li><a href="/blog/">Blog</a></li>
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<li><a href="/help/">Need help?</a></li>
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</header>
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<div class="grid-wrapper">
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<div class="grid grid-center">
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<div class="grid__item two-thirds lap-one-whole palm-one-whole">
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<article class="page">
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<header>
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<h1 class="title indent">
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Frontend development
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</h1>
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</header>
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<hr class="divider">
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<p>Home Assistant is built on top of the <a href="https://www.polymer-project.org/">Polymer</a> webcomponents framework. Polymer allows building encapsulated custom HTML elements. <a href="https://github.com/home-assistant/home-assistant-polymer">Home-Assistant-Polymer source code on GitHub.</a></p>
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<p class="note warning">
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Do not use development mode in production. Home Assistant uses aggressive caching to improve the mobile experience. This is disabled during development so that you do not have to restart the server in between changes.
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</p>
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<h2><a class="title-link" name="setting-up-the-environment" href="#setting-up-the-environment"></a> Setting up the environment</h2>
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<p>Home Assistant will by default serve the compiled version of the frontend. As everything is compiled into the file <code class="highlighter-rouge">frontend.html</code> you do not want to work with the compiled version but with the separate files during development. To enable development mode for Home Assistant, update your <code class="highlighter-rouge">configuration.yaml</code> to have these lines:</p>
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<div class="language-yaml highlighter-rouge"><pre class="highlight"><code><span class="s">http</span><span class="pi">:</span>
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<span class="s">development</span><span class="pi">:</span> <span class="s">1</span>
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</code></pre>
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</div>
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<p>Node.js is required to setup the frontend development environment. The preferred method of installing node.js is <a href="https://github.com/creationix/nvm">nvm</a>. Install nvm using the instructions in the <a href="https://github.com/creationix/nvm#install-script">README</a>, and install the correct node.js by running the following command from the <code class="highlighter-rouge">home-assistant-polymer</code> directory:</p>
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<div class="language-bash highlighter-rouge"><pre class="highlight"><code><span class="gp">$ </span><span class="nb">cd </span>homeassistant/components/frontend/www_static/home-assistant-polymer
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<span class="gp">$ </span>nvm install < .nvmrc
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</code></pre>
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</div>
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<p><a href="https://yarnpkg.com/en/">Yarn</a> is used as the package manager for node modules. <a href="https://yarnpkg.com/en/docs/install">Install yarn using the instructions here.</a></p>
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<p>Next step is to get the frontend code. When you clone the Home Assistant repository, the frontend repository is not cloned by default. You can setup the frontend development environment by running from the <code class="highlighter-rouge">home-assistant</code> directory:</p>
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<div class="language-bash highlighter-rouge"><pre class="highlight"><code><span class="gp">$ </span>script/bootstrap_frontend
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</code></pre>
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</div>
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<p>This script will update the git submodule for the polymer project in</p>
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<p><code class="highlighter-rouge">home-assistant/homeassistant/components/frontend/www_static/home-assistant-polymer</code>.</p>
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<p>If you’re planning on issuing a PR back to the Home Assistant codebase you need to fork the polymer project and add your fork as a remote.</p>
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<div class="language-bash highlighter-rouge"><pre class="highlight"><code><span class="gp">$ </span><span class="nb">cd </span>homeassistant/components/frontend/www_static/home-assistant-polymer
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<span class="gp">$ </span>git remote add <remote name> <github URL to your fork>
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</code></pre>
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</div>
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<p>When you’ve made your changes and are ready to push them change to the working directory for the polymer project and then push your changes</p>
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<div class="language-bash highlighter-rouge"><pre class="highlight"><code><span class="gp">$ </span><span class="nb">cd </span>homeassistant/components/frontend/www_static/home-assistant-polymer
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<span class="gp">$ </span>git push -u <remote name> HEAD
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</code></pre>
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</div>
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<h2><a class="title-link" name="development" href="#development"></a> Development</h2>
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<p>While you are developing, you need to have Rollup running to have changes you make to the JavaScript app-core made available.</p>
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<div class="language-bash highlighter-rouge"><pre class="highlight"><code><span class="gp">$ </span><span class="nb">cd </span>homeassistant/components/frontend/www_static/home-assistant-polymer
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<span class="gp">$ </span>npm run dev
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</code></pre>
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</div>
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<p>The source code for the frontend can be found in two different directories:</p>
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<ul>
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<li>UI: <code class="highlighter-rouge">homeassistant/components/frontend/www_static/home-assistant-polymer/src/</code></li>
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<li>Panels: <code class="highlighter-rouge">homeassistant/components/frontend/www_static/home-assistant-polymer/panels/</code></li>
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</ul>
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<h1><a class="title-link" name="building-the-polymer-frontend" href="#building-the-polymer-frontend"></a> Building the Polymer frontend</h1>
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<p>Building a new version of the frontend is as simple as running <code class="highlighter-rouge">script/build_frontend</code>. This fires off the following commands:</p>
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<ul>
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<li><strong>home-assistant-polymer</strong>: Install NPM dependencies.</li>
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<li><strong>home-assistant-polymer</strong>: start frontend build.
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<ul>
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<li>Compile all used JavaScript.</li>
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<li>Install Bower dependencies.</li>
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<li>Vulcanize and minify the core and panel sources to build dir.</li>
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</ul>
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</li>
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<li>Copy the webcomponents polyfill <code class="highlighter-rouge">webcomponents-lite.min.js</code> from <strong>home-assistant-polymer</strong> to <code class="highlighter-rouge">components/frontend/www_static/webcomponents-lite.min.js</code>.</li>
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<li>Copy the final frontend build <code class="highlighter-rouge">frontend.html</code> and panel sources from <strong>home-assistant-polymer</strong> to <code class="highlighter-rouge">components/frontend/www_static/frontend/</code>.</li>
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<li>Generate MD5 hashes of core and panel sources.</li>
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<li>Create gzip versions of all the sources.</li>
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</ul>
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</article>
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</div>
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<aside id="sidebar" class="grid__item one-third lap-one-whole palm-one-whole">
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<div class="grid">
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<section class="aside-module grid__item one-whole lap-one-half">
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<div class='edit-github'><a href='https://github.com/home-assistant/home-assistant.github.io/tree/current/source/developers/frontend.markdown'>Edit this page on GitHub</a></div>
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<div class='section'>
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<h1 class="title delta">Development Guide</h1>
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<ul class='divided sidebar-menu'>
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<li>
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<a href='/developers/'>Introduction </a>
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<ul>
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<li><a href='/developers/architecture/'>Architecture </a></li>
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<li><a href='/developers/architecture_components/'>Components </a></li>
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</ul>
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</li>
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<li>
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<a href='/developers/development/'>Starting with Development </a>
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<ul>
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<li><a href='/developers/development_environment/'>Setting up Environment </a></li>
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<li><a href='/developers/development_submitting/'>Submit your Work </a></li>
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<li><a href='/developers/development_checklist/'>Checklist </a></li>
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<li><a href='/developers/development_guidelines/'>Style guidelines </a></li>
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<li><a href='/developers/development_testing/'>Testing </a></li>
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<li><a href='/developers/development_catching_up/'>Catching up with Reality </a></li>
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<li><a href='/developers/development_validation/'>Validation </a></li>
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</ul>
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</li>
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<li>
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<a href='/developers/development_101/'>Development 101 </a>
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<ul>
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<li><a href='/developers/development_hass_object/'>Hass object </a></li>
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<li><a href='/developers/development_events/'>Events </a></li>
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<li><a href='/developers/development_states/'>States </a></li>
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<li><a href='/developers/development_services/'>Services </a></li>
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<li><a href='/developers/development_config/'>Config </a></li>
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</ul>
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</li>
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<li>
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<a href='/developers/add_new_platform/'>Creating a new platform (to support a new device) </a>
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<ul>
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<li><a href='/developers/code_review_platform/'>Checklist creating a platform </a></li>
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<li><a href='/developers/platform_example_sensor/'>Example sensor platform </a></li>
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<li><a href='/developers/platform_example_light/'>Example light platform </a></li>
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</ul>
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</li>
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<li>
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<a href='/developers/creating_components/'>Adding a new component </a>
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<ul>
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<li><a href='/developers/code_review_component/'>Checklist creating a component </a></li>
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<li><a href='/developers/component_loading/'>Loading components </a></li>
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<li><a href='/developers/component_deps_and_reqs/'>Requirements & Dependencies </a></li>
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<li><a href='/developers/component_events/'>Handling events </a></li>
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<li><a href='/developers/component_states/'>States </a></li>
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<li><a href='/developers/component_visibility/'>Visibility </a></li>
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<li><a href='/developers/component_generic_discovery/'>Loading Platforms </a></li>
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<li><a href='/developers/component_discovery/'>Component Discovery </a></li>
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</ul>
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</li>
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<li>
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<a href='/developers/intent/'>Intents (handling voice responses) </a>
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<ul>
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<li><a href='/developers/intent/firing/'>Firing intents </a></li>
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<li><a href='/developers/intent/handling/'>Handling intents </a></li>
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<li><a href='/developers/intent/conversation/'>Registering sentences </a></li>
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</ul>
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</li>
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<li>
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<a href='/developers/asyncio/'>Asynchronous Programming </a>
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<ul>
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<li><a href='/developers/asyncio_101/'>Introduction to asyncio </a></li>
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<li><a href='/developers/asyncio_categorizing_functions/'>Categorizing Functions </a></li>
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<li><a href='/developers/asyncio_working_with_async/'>Working with Async </a></li>
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<li><a href='/developers/asyncio_misc/'>Miscellaneous </a></li>
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</ul>
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</li>
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<li>
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<a class='active' href='/developers/frontend/'>Frontend Development </a>
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<ul>
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<li><a href='/developers/frontend_add_card/'>Add State Card </a></li>
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<li><a href='/developers/frontend_add_more_info/'>Add More Info Dialog </a></li>
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<li><a href='/developers/frontend_creating_custom_panels/'>Add Custom Panels </a></li>
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<li><a href='/developers/frontend_creating_custom_ui/'>Add Custom UI </a></li>
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</ul>
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</li>
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<li>
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<a href='/developers/hassio/architecture/'>Hass.io architecture </a>
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<ul>
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<li><a href='/developers/hassio/debugging/'>Debugging Hass.io </a></li>
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</ul>
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</li>
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<li>
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<a href='/developers/hassio/addon_development/'>Hass.io Add-on Development </a>
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<ul>
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<li><a href='/developers/hassio/addon_tutorial/'>Tutorial: Making your first add-on </a></li>
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<li><a href='/developers/hassio/addon_config/'>Configuration </a></li>
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<li><a href='/developers/hassio/addon_testing/'>Local Testing </a></li>
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<li><a href='/developers/hassio/addon_publishing/'>Publishing </a></li>
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<li><a href='/developers/hassio/addon_repository/'>Repositories </a></li>
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</ul>
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</li>
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<li>
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<a href='/developers/api/'>API </a>
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<ul>
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<li><a href='https://dev-docs.home-assistant.io/en/dev/'>Python API </a></li>
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<li><a href='/developers/websocket_api/'>Websocket API </a></li>
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<li><a href='/developers/rest_api/'>REST API </a></li>
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<li><a href='/developers/python_api/'>Python REST API </a></li>
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<li><a href='/developers/server_sent_events/'>Server-sent events </a></li>
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</ul>
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</li>
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<li><a href='/developers/helpers/'>Online helpers </a></li>
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<li><a href='/developers/website/'>Website/Documentation </a></li>
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<li><a href='/developers/releasing/'>Releasing </a></li>
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<li><a href='/developers/maintenance/'>Maintenance </a></li>
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<li>
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Governance
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<ul>
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<li><a href='/developers/cla/'>Contributor License Agreement </a></li>
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<li><a href='/developers/code_of_conduct/'>Code of Conduct </a></li>
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<li><a href='/developers/credits/'>Credits </a></li>
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<li><a href='/developers/license/'>License </a></li>
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</ul>
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</li>
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</ul>
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</div>
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</section>
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</div>
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</aside>
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</div>
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</div>
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<footer>
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<div class="grid">
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<div class="grid__item">
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<div class="copyright">
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<a rel="me" href='https://github.com/home-assistant/home-assistant'><i class="icon-github"></i></a>
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<div class="credit">
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Contact us at <a href='mailto:hello@home-assistant.io'>hello@home-assistant.io</a> (no support!).<br>
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