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xml and jsonpath support (#12084)
* xml and jsonpath support https://github.com/home-assistant/home-assistant/pull/31809 * adjust for lint * grammar * Fix xml conversion output, add a more complex example * Update rest.markdown * Added note about json_attributes_path * Update source/_integrations/rest.markdown Co-Authored-By: Franck Nijhof <frenck@frenck.nl> * Update source/_integrations/rest.markdown Co-Authored-By: Franck Nijhof <frenck@frenck.nl> * Update source/_integrations/rest.markdown Co-Authored-By: Franck Nijhof <frenck@frenck.nl> * Update source/_integrations/rest.markdown Co-Authored-By: Franck Nijhof <frenck@frenck.nl> * Update source/_integrations/rest.markdown Co-Authored-By: Franck Nijhof <frenck@frenck.nl> * Update source/_integrations/rest.markdown Co-Authored-By: Franck Nijhof <frenck@frenck.nl> * Update source/_integrations/rest.markdown Co-Authored-By: Franck Nijhof <frenck@frenck.nl> * Update source/_integrations/rest.markdown Co-Authored-By: Franck Nijhof <frenck@frenck.nl> * Update source/_integrations/rest.markdown Co-Authored-By: Franck Nijhof <frenck@frenck.nl> * Update rest.markdown * Update source/_integrations/rest.markdown Co-Authored-By: Franck Nijhof <frenck@frenck.nl> * Update source/_integrations/rest.markdown Co-Authored-By: Franck Nijhof <frenck@frenck.nl> * Update rest.markdown Co-authored-by: Franck Nijhof <frenck@frenck.nl>
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J. Nick Koston
GitHub
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@ -105,12 +105,16 @@ headers:
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required: false
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required: false
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type: [string, list]
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type: [string, list]
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json_attributes:
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json_attributes:
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description: A list of keys to extract values from a JSON dictionary result and then set as sensor attributes.
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description: A list of keys to extract values from a JSON dictionary result and then set as sensor attributes. If the endpoint returns XML with the "text/xml" content type, it will automatically be converted to JSON according to this [specification](https://www.xml.com/pub/a/2006/05/31/converting-between-xml-and-json.html)
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reqired: false
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required: false
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type: [string, list]
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type: [string, list]
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json_path_attributes:
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description: A [JSONPath](https://goessner.net/articles/JsonPath/) that references the location of the `json_attributes` in the JSON content.
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required: false
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type: string
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force_update:
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force_update:
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description: Sends update events even if the value hasn't changed. Useful if you want to have meaningful value graphs in history.
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description: Sends update events even if the value hasn't changed. Useful if you want to have meaningful value graphs in history.
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reqired: false
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required: false
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type: boolean
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type: boolean
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default: false
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default: false
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{% endconfiguration %}
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{% endconfiguration %}
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@ -264,6 +268,26 @@ sensor:
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```
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```
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{% endraw %}
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{% endraw %}
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[JSONPlaceholder](https://jsonplaceholder.typicode.com/) provides sample JSON data for testing. In the below example, JSONPath locates the attributes in the JSON document. [JSONPath Online Evaluator](https://jsonpath.com/) provides a tool to test your JSONPath. If the endpoint returns XML, it will be converted to JSON using `xmltodict` before searching for attributes. You may find the [XMLtoDict debug tool](https://xmltodict-debugger.glitch.me/) helpful for testing how your XML converts to JSON.
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{% raw %}
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```yaml
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sensor:
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- platform: rest
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name: JSON users
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json_attributes_path: "$.[0].address"
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json_attributes:
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- street
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- suite
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- city
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- zipcode
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resource: https://jsonplaceholder.typicode.com/users
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value_template: '{{ value_json[0].name }}'
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```
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{% endraw %}
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This sample fetches a weather report from [OpenWeatherMap](https://openweathermap.org/), maps the resulting data into attributes of the RESTful sensor and then creates a set of [template](/integrations/template) sensors that monitor the attributes and present the values in a usable form.
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This sample fetches a weather report from [OpenWeatherMap](https://openweathermap.org/), maps the resulting data into attributes of the RESTful sensor and then creates a set of [template](/integrations/template) sensors that monitor the attributes and present the values in a usable form.
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{% raw %}
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{% raw %}
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@ -358,3 +382,106 @@ sensor:
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unit_of_measurement: '°C'
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unit_of_measurement: '°C'
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```
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```
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{% endraw %}
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{% endraw %}
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The below example allows shows how to extract multiple values from a dictionary with `json_attributes` and `json_attributes_path` from the XML of a Steamist Steambath Wi-Fi interface and use them to create a switch and multiple sensors without having to poll the endpoint numerous times.
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In the below example `json_attributes_path` is set to `$.response` which is the location of the `usr0`, `pot0`, ... attributes used for `json_attributes`.
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{% raw %}
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```yaml
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sensor:
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# Steam Controller
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- platform: rest
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name: Steam System Data
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resource: http://192.168.1.105/status.xml
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json_attributes_path: "$.response"
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scan_interval: 15
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value_template: 'OK'
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json_attributes:
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- "usr0"
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- "pot0"
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- "temp0"
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- "time0"
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- platform: template
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sensors:
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steam_temp:
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friendly_name: Steam Temp
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value_template: '{{ states.sensor.steam_system_data.attributes["temp0"] | regex_findall_index("([0-9]+)XF") }}'
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unit_of_measurement: "°F"
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steam_time_remaining:
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friendly_name: "Steam Time Remaining"
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value_template: '{{ states.sensor.steam_system_data.attributes["time0"] }}'
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unit_of_measurement: "minutes"
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switch:
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- platform: template
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switches:
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steam:
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value_template: '{{ states.sensor.steam_system_data.attributes["usr0"] | int >= 1 }}'
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turn_on:
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- service: rest_command.set_steam_led
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data:
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led: 6
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- service: homeassistant.update_entity
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data:
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entity_id: sensor.steam_system_data
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- delay: 00:00:15
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- service: homeassistant.update_entity
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data:
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entity_id: sensor.steam_system_data
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turn_off:
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- service: rest_command.set_steam_led
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data:
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led: 7
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- service: homeassistant.update_entity
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data:
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entity_id: sensor.steam_system_data
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- delay: 00:00:15
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- service: homeassistant.update_entity
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data:
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entity_id: sensor.steam_system_data
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friendly_name: Steam
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rest_command:
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set_steam_led:
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url: http://192.168.1.105/leds.cgi?led={{ led }}
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```
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{% endraw %}
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For reference, the XML content of endpoint shown above example is below:
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```xml
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<?xml version="1.0" encoding="utf-8"?>
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<response>
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<scan>0</scan>
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<ver>12556</ver>
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<count>48</count>
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<ssid>alexander</ssid>
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<bss>
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<valid>0</valid>
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<name>0</name>
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<privacy>0</privacy>
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<wlan>0</wlan>
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<strength>0</strength>
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</bss>
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<led0>0</led0>
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<led1>0</led1>
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<led2>0</led2>
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<led3>0</led3>
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<led4>0</led4>
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<led5>0</led5>
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<led6>0</led6>
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<led7>0</led7>
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<btn0>up</btn0>
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<btn1>up</btn1>
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<btn2>up</btn2>
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<btn3>up</btn3>
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<pot0>0</pot0>
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<usr0>0</usr0>
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<temp0>0x73XF0x73XF</temp0>
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<time0> 0</time0>
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</response>
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```
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