EventHubs bindings and pubsub need to document IoT Hub SystemProperties returned in metadata #1639
Description
What content needs to be created or modified?
As part of the fix for issue dapr/components-contrib#227, the Azure Event Hubs bindings and pubsub components will return the Event SystemProperties as part of the Read response or Subscribe message header metadata.
Describe the solution you'd like
The existing docs should have an additional section discussing the use of the Event Hubs components with Azure IoT Hub and include an example of how the IoT Hub properties are returned as metadata in the headers, e.g.
{
'user-agent': 'fasthttp',
host: '127.0.0.1:3000',
'content-type': 'application/json',
'content-length': '120',
'iothub-connection-device-id': 'my-test-device',
'iothub-connection-auth-generation-id': '637618061680407492',
'iothub-connection-auth-method': '{"scope":"module","type":"sas","issuer":"iothub","acceptingIpFilterRule":null}',
'iothub-connection-module-id': 'my-test-module-a',
'iothub-enqueuedtime': '2021-07-13T22:08:09Z',
'x-opt-sequence-number': '35',
'x-opt-enqueued-time': '2021-07-13T22:08:09Z',
'x-opt-offset': '21560',
traceparent: '00-4655608164bc48b985b42d39865f3834-ed6cf3697c86e7bd-01'
}
Where should the new material be placed?
Update the component references:
https://v1-3.docs.dapr.io/reference/components-reference/supported-pubsub/setup-azure-eventhubs/
https://v1-3.docs.dapr.io/reference/components-reference/supported-bindings/eventhubs/
The associated pull request from dapr/dapr, dapr/components-contrib, or other Dapr code repos
PR: dapr/components-contrib#1009
Additional context