34 lines
1.8 KiB
Markdown
34 lines
1.8 KiB
Markdown
---
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layout: page
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title: "Add-On Communication"
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description: "Describe internal communication Hass.io."
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date: 2017-04-30 13:28
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sidebar: true
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comments: false
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sharing: true
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footer: true
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redirect_from: /hassio/addon_config/
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---
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It exists diferent ways to communication between add-ons or home-assistant inside Home-Assistant.
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## {% linkable_title Network %}
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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
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i.e. use `hassio` to speak with internal API.
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## {% linkable_title Home-Assistant %}
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A Add-on can speak to [Home-Assistant API][hass-api] 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: `http://hassio/homeassistant/api` and they will internal redirected to the right place. As next add `homeassistant_api: true` to `config.json`.
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It is also possible to speak direct to Home-Assistant instance with name `homeassistant` over our internal Network. But you need know the running config.
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We have severals services for Hass.io inside Home-Assistant to execute some task. So you can also use `hassio.addon_stdin` to send data over STDIN to a add-on.
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## {% linkable_title Hass.io API %}
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To call to our [Hass.io API][hassio-api] add `hassio_api: true` to `config.json`. Now you can use the API over this url: `http://hassio/`.
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[hass-api]: https://home-assistant.io/developers/rest_api/
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[hassio-api]: https://github.com/home-assistant/hassio/blob/master/API.md
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