How to send Properties details in EventHub message using python?

Question

I am referring to this article \"https://docs.microsoft.com/en-us/azure/event-hubs/event-hubs-python-get-started-send\" related to sending messages to EventHub using Python.

Answer 1

I asked this question elsewhere as the solution provided by PraveenS does not actually solve the problem. The correct answer which I received is below, sharing to help others:

The solution is to assign the properties you want to be sent with the message to EventData.properties, applying that to the above code would look like this:

from azure.eventhub import EventHubClient, Receiver, Offset, Sender, EventData
from uamqp import Message

ADDRESS = "amqps://<>.windows.net/<>"
USER = "RootManageSharedAccessKey"
KEY = "<>"

client = EventHubClient(ADDRESS, debug=True, username=USER, password=KEY)
Sender = client.add_sender(partition="0")
client.run()

event = EventData(body="TESTTWO:100, Temperature:-127.0")
### THIS IS WHERE THE CHANGE IS ###
event.properties = {"Type": "iPhone"}
Sender.send(event)

Answer 2

You may also find useful the following way, which basically do the same:

props = {"Type": "iPhone"} # properties you want to send

columns = ['body', 'properties']
values = [(write_binneddata, props)] # You can also send multiple messages adding tuples to the list
df = spark.createDataFrame(values, columns)

conn_string = f"Endpoint=sb://{event_hub_namespace}.servicebus.windows.net/;SharedAccessKeyName={shared_acc_keyname};SharedAccessKey={shared_acc_key};EntityPath={event_hub_name}"
conf = { 'eventhubs.connectionString' : conn_string }

ds = (
  df
  .write 
  .format("eventhubs") 
  .options(**conf) 
  .option("checkpointLocation", f"{checkpoint_path}")
  .save()
)

PS: it needs this library installed.

Answer 3

Found solution to this, yes we can use "application_properties" to send "properties" of message. This is my sample code that worked:

from azure.eventhub import EventHubClient, Receiver, Offset, Sender, EventData
from uamqp import Message

ADDRESS = "amqps://<>.windows.net/<>"
USER = "RootManageSharedAccessKey"
KEY = "<>"

client = EventHubClient(ADDRESS, debug=True, username=USER, password=KEY)
Sender = client.add_sender(partition="0")
client.run()

event = EventData(body="TESTTWO:100, Temperature:-127.0")
event.application_properties = {"Type": "iPhone"}
Sender.send(event)