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Add url support for mqtt image (#27973)

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Co-authored-by: Franck Nijhof <frenck@frenck.nl>
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Jan Bouwhuis 2023-06-27 12:57:13 +02:00 committed by GitHub
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source/_integrations/image.mqtt.markdown
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@ -14,6 +14,8 @@ Every time a message under the `image_topic` in the configuration is received, t
This can be used with an application or a service capable of sending images through MQTT.
An alternative setup is to use the `url_topic` option to receive an image URL for a new picture to show.
## Configuration
<a id='new_format'></a>
@ -71,7 +73,7 @@ availability_topic:
required: false
type: string
content_type:
description: The content type of and image data message received on `image_topic`.
description: The content type of and image data message received on `image_topic`. This option cannot be used with the `from_url_topic` because the content type is derived when downloading the image.
required: false
type: string
default: image/jpeg
@ -145,8 +147,8 @@ image_encoding:
type: string
default: None
image_topic:
description: The MQTT topic to subscribe to receive the image payload of the image to be downloaded. Ensure the `content_type` type option is set to the corresponding content type.
required: true
description: The MQTT topic to subscribe to receive the image payload of the image to be downloaded. Ensure the `content_type` type option is set to the corresponding content type. This option cannot be used together with the `url_topic` option. But at least one of these option is required.
required: exclusive
type: string
json_attributes_template:
description: Defines a [template](/docs/configuration/templating/#using-templates-with-the-mqtt-integration) to extract the JSON dictionary from messages received on the `json_attributes_topic`.
@ -168,4 +170,34 @@ unique_id:
description: An ID that uniquely identifies this image. If two images have the same unique ID Home Assistant will raise an exception.
required: false
type: string
url_template:
description: Defines a [template](/docs/configuration/templating/#using-templates-with-the-mqtt-integration) to extract the image URL from a message received at `url_topic`.
required: false
type: template
url_topic:
description: The MQTT topic to subscribe to receive an image URL. A `url_template` option can extract the URL from the message. The `content_type` will be derived from the image when downloaded. This option cannot be used together with the `image_topic` option, but at least one of these options is required.
required: exclusive
type: boolean
default: false
{% endconfiguration %}
### Example receiving images from from a URL
Add the configuration below to your `configuration.yaml`.
To test it publish an image URL to the topic from the console:
```shell
mosquitto_pub -h <mqtt_broker> -t mynas/status/url -m "https://design.home-assistant.io/images/logo.png"
```
{% raw %}
```yaml
# Example configuration.yaml entry
mqtt:
image:
- from_url_topic: mynas/status/url
```
{% endraw %}