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40 lines
1.2 KiB
Markdown
40 lines
1.2 KiB
Markdown
---
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layout: page
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title: "Websocket API"
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description: "Instructions on how to setup the WebSocket API within Home Assistant."
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date: 2018-01-21 08:00
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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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logo: home-assistant.png
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ha_category: "Other"
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ha_qa_scale: internal
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ha_release: 0.34
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---
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The `websocket_api` component set up a WebSocket API and allows one to interact with a Home Assistant instance that is running headless. This component depends on the [`http` component](/components/http/).
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<p class='note warning'>
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It is HIGHLY recommended that you set the `api_password`, especially if you are planning to expose your installation to the internet.
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</p>
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## {% linkable_title Configuration %}
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```yaml
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# Example configuration.yaml entry
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websocket_api:
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```
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For details to use the WebSocket API, please refer to the [WebSocket API documentation](/developers/websocket_api/) .
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## {% linkable_title Track current connections %}
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The websocket API provides a sensor that will keep track of the number of current connected clients. You can add it by adding the following to your configuration:
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```yaml
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# Example configuration.yaml entry
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sensor:
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platform: websocket_api
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```
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