c# - How to use a ServiceBus Trigger with a topic/subscription in an Azure Function -

i'd create azure function triggered when new message added topic/subscription.

for moment i've created azure function using servicebusqueuetrigger c# template , i've set queue name to

topicpath + "/subscriptions/" + subscriptionname 

but i've got exception:

microsoft.servicebus: cannot entity 'topic-test/subscriptions/subscription-test' because not of type queuedescription. check using method(s) correct entity type. system.runtime.serialization: error in line 1 position 1762. expecting element 'queuedescription' namespace 'http://schemas.microsoft.com/netservices/2010/10/servicebus/connect'.. encountered 'none' name '', namespace ''. .

i thought azure function using messagingfactory.createmessagereceiver initialize message pump not.

is there support topic/subscription moment ?

yes topics supported, our ui , templates behind on unfortunately - we'll releasing updates addressing these issues.

for now, can use advanced editor edit trigger binding directly. there can specify subscriptionname , topicname values. here's example:

{   "bindings": [     {       "type": "servicebustrigger",       "name": "message",       "direction": "in",       "subscriptionname": "subscription-test",       "topicname": "topic-test",     }   ] } 

in general, since azure functions build atop webjobs sdk, our various bindings mapped directly sdk counterparts. example servicebustrigger maps servicebustriggerattribute has subscriptionname/topicname properties. therefore, expect see same properties in function metadata model.