QueueTrigger 写入 Queue-Python

问题描述

我有一个队列触发器，它读取 gis 要素图层并在它写回门户时对其进行处理。除了消息没有登录到输出队列之外，它似乎工作正常。我说它工作正常，因为我可以在 gis 门户上看到正确编写的 gis 要素层。我怀疑我的绑定不好。我不需要一定要回写结果数据帧。我所需要的只是存放在输出队列上的任何消息，以便为其他进程提供资源。不能在这里发布完整的代码以保护隐私，但我的主文件 (init_py) 可以被认为是：

import logging
import json
import pandas


def main(msg: func.QueueMessage,msg1: func.Out[str]) -> None:
    logging.info('Python queue trigger function processed a queue item: %s',msg.get_body().decode('utf-8'))
       x=1
       y=1
       df=x=1
    
     msg1.set(df)
    

我的function.host

{
  "scriptFile": "__init__.py","bindings": [
    {
      "name": "msg","type": "queueTrigger","direction": "in","queueName": "outqueue12","connection": "storageaccountautom92bb_STORAGE"
    },{
      "type": "http","direction": "out","name": "$return"
    },{
    "type": "queue","name": "msg1","queueName": "outqueue13","connection": "AzureStorageQueuesConnectionString"
    }
  ]
}

解决方法

绑定接受字符串类型和字节类型，所以下面的代码应该可以工作：

__init__.py

import logging

import azure.functions as func


def main(msg: func.QueueMessage,msg2: func.Out[str]) -> None:
    num1 = 1
    num2 = 1
    str1 = num1+num2
    msg2.set(str(str1))

function.json

{
  "scriptFile": "__init__.py","bindings": [
    {
      "name": "msg","type": "queueTrigger","direction": "in","queueName": "test1","connection": "0730bowmanwindow_STORAGE"
    },{
      "type": "queue","direction": "out","name": "msg2","queueName": "test2","connection": "0730bowmanwindow_STORAGE"
    }
  ]
}