With the azure Python SDK, how do I use the ServiceBusManagementClient to send a message on a topic?

Question

I'm using Python 3.8 with azure-mgmt-servicebus= v. 1.0.0. Using the ServiceBusManagementClient, I'm able to create a topic and subscription on my service bus, using

  from azure.mgmt.servicebus import ServiceBusManagementClient
...
        credential = ServicePrincipalCredentials(self._client_id, self._client_secret, tenant=self._tenant)
        sb_client = ServiceBusManagementClient(credential, self._subscription)
    sb_client.topics.create_or_update(resource_group_name, namespace_name, topic_name, parameters={})
        sb_client.subscriptions.create_or_update(resource_group_name, namespace_name, topic_name, SB_SUBSCRIPTION_NAME, parameters={})

However, I am having a more challenging time sending a message on that topic. I tried this

    credential = ServicePrincipalCredentials(self._client_id, self._client_secret, tenant=self._tenant)
sb_client = ServiceBusManagementClient(credential, self._subscription)
topic_client = sb_client.get_topic(topic_name)
              topic_client.send(msg)

But I get an error "Instance of 'ServiceBusManagementClient' has no 'get_topic' member". How do I use the ServiceBusManagementClient to send a message on a topic?

Answer 1

To answer directly, ServiceBusManagementClient is not for sending a message to a topic.

But have no fear! The issue here is that you're utilizing functionality from two distinct ServiceBus clients that do not exist in the same package, and this can be sorted out.

1. ServiceBusManagementClient is part of the azure-mgmt-servicebus package, and allows creation, administration, management, etc. (this is where create_or_update and friends come in)

2. ServiceBusClient is part of the azure-servicebus package, and provides the sending/receiving functionality you seem to want after via get_topic and send. (this is the syntax from version 0.5*)

So to be clear, one would not use the ServiceBusManagementClient to send messages, only do management. ServiceBusClient is the solution, as seen in this sample.