azure 队列触发器 function 从两个不同的队列中拉取

Question

How can I have a single azure queue trigger function connect to two different queues.

Having two bindings like this seems to break it:

{
  "disabled": false,
  "bindings": [
    {
      "type": "queueTrigger",
      "direction": "in",
      "name": "theQueueItem",
      "queueName": "main",
      "connection": "QUEUE_CONNECTION_STRING"
    },
    {
      "type": "queueTrigger",
      "direction": "in",
      "name": "theQueueItem",
      "queueName": "priority",
      "connection": "QUEUE_CONNECTION_STRING"
    },
    {
      "name": "starter",
      "type": "durableClient",
      "direction": "in"
    }
  ]
}

If possible I would like one queue to take priority over the other. Such that main would only send jobs to the function if priority was empty, otherwise it would take jobs from priority until empty.

Answer 1

You cannot place the multiple Queues of Input bindings for the single Queue Trigger Function, but you can use the multiple output bindings for the same Queue Trigger Function.

I believe the function runs for single specified queue message not for the multiple queue messages at the same time using message array for the output binding object.

And we can also get the multiple messages from the same queue.

Refer to the SO Thread and MS Doc of Azure Functions Binding Samples for more information.