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59 lines
1.8 KiB
Markdown
59 lines
1.8 KiB
Markdown
---
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layout: page
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title: "HTTP Sensor"
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description: "Instructions how to integrate HTTP sensors within Home Assistant."
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date: 2016-02-05 12:15
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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: http.png
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ha_category: Sensor
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ha_release: pre 0.7
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---
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The URL for a sensor looks like the example below:
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```bash
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http://IP_ADDRESS:8123/api/states/sensor.DEVICE_NAME
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```
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<p class='note'>
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You should choose a unique device name (DEVICE_NAME) to avoid clashes with other devices.
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</p>
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The JSON payload must contain the new state and should include the unit of measurement and a friendly name. The friendly name is used in the frontend to name the sensor.
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```json
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{"state": "20", "attributes": {"unit_of_measurement": "°C", "friendly_name": "Bathroom Temperature"}}
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```
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For a quick test, `curl` can be useful to "simulate" a device.
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```bash
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$ curl -X POST -H "x-ha-access: YOUR_PASSWORD" \
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-H "Content-Type: application/json" \
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-d '{"state": "20", "attributes": {"unit_of_measurement": "°C", "friendly_name": "Bathroom Temp"}}' \
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http://localhost:8123/api/states/sensor.bathroom_temperature
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```
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You can then use `curl` again to retrieve the [current sensor state](/developers/rest_api/#get-apistatesltentity_id) and verify the sensor is working.
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```bash
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$ curl -X GET -H "x-ha-access: YOUR_PASSWORD" \
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-H "Content-Type: application/json" \
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http://localhost:8123/api/states/sensor.bathroom_temperature
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{
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"attributes": {
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"friendly_name": "Bathroom Temp",
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"unit_of_measurement": "\u00b0C"
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},
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"entity_id": "sensor.bathroom_temperature",
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"last_changed": "09:46:17 06-02-2016",
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"last_updated": "09:48:46 06-02-2016",
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"state": "20"
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}
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```
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For more examples please visit the [HTTP Binary Sensor](/components/binary_sensor.http/#examples) page.
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