Python Azure 函数、EventGrid 触发器

Question

我对 azure 还很陌生，并且正在努力处理 eventGrid 中的 python 函数触发器。我正在使用从 azure for python 创建的现成模板并收到错误。我将分享这些文件。

(init.py)

import json
import logging

import azure.functions as func


def main(event: func.EventGridEvent):

    result = json.dumps(
        {
            "id": event.id,
            "data": event.get_json(),
            "topic": event.topic,
            "subject": event.subject,
            "event_type": event.event_type,
        }
    )

    logging.info("Python EventGrid trigger processed an event: %s", result)

函数.json

{
  "bindings": [
    {
      "type": "eventGridTrigger",
      "name": "event",
      "direction": "in"
    }
  ],
  "disabled": false,
  "scriptFile": "__init__.py"
}

主机.json

{
  "version": "2.0",
  "logging": {
    "applicationInsights": {
      "samplingSettings": {
        "isEnabled": true,
        "excludedTypes": "Request"
      }
    }
  },
  "extensionBundle": {
    "id": "Microsoft.Azure.Functions.ExtensionBundle",
    "version": "[2.*, 3.0.0)"
  }
}

这就是我发送到事件网格的数据集

{
  "topic": "/subscriptions/{subscriptionID}/resourcegroups/{resourceGroupName}/providers/Microsoft.EventHub/namespaces/event",
  "subject": "eventhubs/test",
  "eventType": "captureFileCreated",
  "eventTime": "2017-07-14T23:10:27.7689666Z",
  "id": "{id}",
  "data": {
    "fileUrl": "https://test.blob.core.windows.net/debugging/testblob.txt",
    "fileType": "AzureBlockBlob",
    "partitionId": "1",
    "sizeInBytes": 0,
    "eventCount": 0,
    "firstSequenceNumber": -1,
    "lastSequenceNumber": -1,
    "firstEnqueueTime": "0001-01-01T00:00:00",
    "lastEnqueueTime": "0001-01-01T00:00:00"
  },
  "dataVersion": "", 
  "metadataVersion": "1" 
}

我得到的错误是

fail: Function.{functionName}[3]
Executed 'Functions.{functionName}' (Failed, Id={someID}, Duration=121ms)
Microsoft.Azure.WebJobs.Host.FunctionInvocationException: Exception while executing function: Functions.{functionName}
System.InvalidOperationException: Exception binding parameter 'event'
System.NotImplementedException: The method or operation is not implemented.

可能这是上面某个地方非常简单的错误，但我找不到它..

提前致谢!

Answer 1

python fail: Function.{functionName}[3] Executed 'Functions.{functionName}' (Failed, Id={someID}, Duration=121ms) Microsoft.Azure.WebJobs.Host.FunctionInvocationException: Exception while executing function: Functions.{functionName} System.InvalidOperationException: Exception binding parameter 'event' System.NotImplementedException: The method or operation is not implemented.

上述错误是非常常见的通用错误消息。当您的应用程序遇到事件网格的某些限制时，它就会出现。

如果达到事件网格限制的最大点击数，请参阅 this

Note: Event Grid triggers aren't natively supported in an internal load balancer App Service Environment. The trigger uses an HTTP request that can't reach the function app without a gateway into the virtual network.

如果您使用消费计划，请尝试使用专用计划以避免此问题。

请参阅reliable event processing关联此错误。

检查事件网格的限制并选择适合您的要求的计划。

引用:

azure 函数因函数调用而失败 exception