Azure Function 服务总线批处理消息 - python

Question

I am implementing an azure function in python which is trying to batch process messages from a servicebus queue. I have modified the host.json file as follows:

{
    "version": "2.0",
    "serviceBus": {
        "batchOptions": {
            "maxMessageCount": 20,
            "operationTimeout": "01:00:00",
            "autoComplete": true
        }
    },
    "extensionBundle": {
        "id": "Microsoft.Azure.Functions.ExtensionBundle",
        "version": "[2.*, 3.0.0)"
    }
}

However, I am a bit lost as to how the messages will be received in my entry function in __init__.py . Will it just be a list of messages and I can just loop through the messages as follows:

def main(messages: func.ServiceBusMessage):
    for msg in messages:
        json_obj = json.loads(msg.get_body().decode("utf-8"))
        print(json_obj)

Answer 1

Your binding configuration is not right, it is to be done in function.json properly. After your Azure function is configured as a Service Bus trigger, and bound correctly to the queue, then for each message generated, your function will get invoked once . Your function will not get array of messages. See the example code here to get more details.

For regular standalone program to receive service bus messages as they are generated, see code in this page.