在Azure函数Python SDK中,如何获取给定命名空间的主题数? [英] In the Azure functions Python SDK, how do I get the number of topics for a given namespace?
问题描述
我正在将Python 3.8与azure-mgmt-servicebus = v.1.0.0一起使用.我想获取给定名称空间的主题数.我已经尝试了以下...
I'm using Python 3.8 with azure-mgmt-servicebus= v. 1.0.0. I would like to get the number of topics for a given namespace. I have tried the below ...
credential = ServicePrincipalCredentials(self._client_id, self._client_secret, tenant=self._tenant)
sb_client = ServiceBusManagementClient(credential, self._subscription)
...
topics = sb_client.topics.list_by_namespace(
resource_group_name=self._resource_group_name,
namespace_name=namespace
)
num_topics = 0
while topics.current_page:
num_topics += topics.current_page.count
topics.next
logging.info("num topics: %s", num_topics)
我的"num_topics"尽管我已经确认建立了连接(我可以使用相同的连接创建一个主题),并且在Azure门户中可以看到许多给定信息的主题,但始终返回零.我以为我没有正确使用API,但是不确定哪里会崩溃.如何获得给定名称空间的主题数?
My "num_topics" consistently comes back with zero, despite the fact I have verified that my connection is being made (I can create a topic with the same connection) and I can see many topics for the given information in the Azure portal. I'm thinking I'm not using the API properly but am unsure where things are falling apart. How do I get the number of topics for a given namespace?
推荐答案
如果要获取给定服务总线名称空间的主题数,则可以使用下面的代码.
If you want to get the number of the topics for a given service bus namespace, you could use the code below.
from azure.common.credentials import ServicePrincipalCredentials
from azure.mgmt.servicebus import ServiceBusManagementClient
subscription_id = "<subscription-id>"
rg_name = "<resource-group-name>"
tenant_id = "<tenant-id>"
client_id = "<client-id>"
client_secret = "<client-secret>"
credential = ServicePrincipalCredentials(client_id=client_id, secret=client_secret, tenant=tenant_id)
sb_client = ServiceBusManagementClient(credential, subscription_id)
topics = sb_client.topics.list_by_namespace(resource_group_name= rg_name, namespace_name= "servicebusname")
num_topics = 0
for topic in topics:
num_topics += 1
print(num_topics)
检查门户中的主题,结果正确:
Check the topics in the portal, the result is correct:
更新:
如果不想使用循环,可以将 topics
转换为列表,然后使用 len()
函数.
If you don't want to use the loop, you could convert the topics
to a list, then use the len()
function.
from azure.common.credentials import ServicePrincipalCredentials
from azure.mgmt.servicebus import ServiceBusManagementClient
subscription_id = "<subscription-id>"
rg_name = "<resource-group-name>"
tenant_id = "<tenant-id>"
client_id = "<client-id>"
client_secret = "<client-secret>"
credential = ServicePrincipalCredentials(client_id=client_id, secret=client_secret, tenant=tenant_id)
sb_client = ServiceBusManagementClient(credential, subscription_id)
topics = sb_client.topics.list_by_namespace(resource_group_name= rg_name, namespace_name= "servicebusname")
testlist = list(topics)
print(len(testlist))
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