274 lines
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274 lines
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<title>Add-On Communication - Home Assistant</title>
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<meta name="description" content="Describe internal communication Hass.io.">
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<h1 class="title indent">
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Add-On Communication
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</h1>
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</header>
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<hr class="divider">
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<p>It exists diferent ways to communication between add-ons or home-assistant inside Home-Assistant.</p>
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<h2><a class="title-link" name="network" href="#network"></a> Network</h2>
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<p>We use a internal network. That allow to speak with every add-on or from Home-Assistant to add-on by name or alias. Only the a add-on they run on Host network are a bit limited. They can speak with all internal add-ons over there name but all other add-on can’t speak with the add-on name to this add-on, but alias work wheel. So use the name/alias to communicate inside Hass.io. The name have format <code class="highlighter-rouge"><span class="p">{</span><span class="err">REPO</span><span class="p">}</span><span class="err">-</span><span class="p">{</span><span class="err">SLUG</span><span class="p">}</span></code> i.e. <code class="highlighter-rouge">local-xy</code> or <code class="highlighter-rouge">3283fh-myaddon</code>.</p>
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<p>i.e. use <code class="highlighter-rouge">hassio</code> to speak with internal API.</p>
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<h2><a class="title-link" name="home-assistant" href="#home-assistant"></a> Home-Assistant</h2>
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<p>A Add-on can speak to <a href="https://home-assistant.io/developers/rest_api/">Home-Assistant API</a> with our internal proxy. That make it very easy to speak to this API without you need know the password, port or any other information for the Home-Assistant instance. Use this url: <code class="highlighter-rouge">http://hassio/homeassistant/api</code> and they will internal redirected to the right place. As next add <code class="highlighter-rouge">homeassistant_api: true</code> to <code class="highlighter-rouge">config.json</code>.</p>
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<p>It is also possible to speak direct to Home-Assistant instance with name <code class="highlighter-rouge">homeassistant</code> over our internal Network. But you need know the running config.</p>
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<p>We have severals services for Hass.io inside Home-Assistant to execute some task. So you can also use <code class="highlighter-rouge">hassio.addon_stdin</code> to send data over STDIN to a add-on.</p>
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<h2><a class="title-link" name="hassio-api" href="#hassio-api"></a> Hass.io API</h2>
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<p>To call to our <a href="https://github.com/home-assistant/hassio/blob/master/API.md">Hass.io API</a> add <code class="highlighter-rouge">hassio_api: true</code> to <code class="highlighter-rouge">config.json</code>. Now you can use the API over this url: <code class="highlighter-rouge">http://hassio/</code>.</p>
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<div class='edit-github'><a href='https://github.com/home-assistant/home-assistant.github.io/tree/current/source/developers/hassio/addon_communication.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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<a href='/developers/'>Introduction </a>
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<a href='/developers/development/'>Starting with Development </a>
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<li><a href='/developers/development_submitting/'>Submit your Work </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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<a href='/developers/development_101/'>Development 101 </a>
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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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<a href='/developers/add_new_platform/'>Creating a new platform (to support a new device) </a>
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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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<a href='/developers/creating_components/'>Adding a new component </a>
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<li><a href='/developers/code_review_component/'>Checklist creating a component </a></li>
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<a href='/developers/intent/'>Intents (handling voice responses) </a>
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</ul>
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<li>
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<a href='/developers/asyncio/'>Asynchronous Programming </a>
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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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<a href='/developers/frontend/'>Frontend Development </a>
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</ul>
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<a href='/developers/hassio/architecture/'>Hass.io architecture </a>
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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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<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 class='active' href='/developers/hassio/addon_communication/'>Communication </a></li>
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<li><a href='/developers/hassio/addon_testing/'>Local Testing </a></li>
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<a href='/developers/api/'>API </a>
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<li><a href='https://dev-docs.home-assistant.io/en/dev/'>Python API </a></li>
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