Azure Python HTTPTrigger发Event Grid事件遇401授权头缺失错误

No authorization header in the request. Report '59dda51f-8df1-40ed-ac10-fc50cc9ec807:0:5/29/2023 1:04:46 AM (UTC)' to our forums for assistance or raise a support ticket. Status: 401 (No authorization header in the request. Report '59dda51f-8df1-40ed-ac10-fc50cc9ec807:0:5/29/2023 1:04:46 AM (UTC)' to our forums for assistance or raise a support ticket.) ErrorCode: Unauthorized Content: { "error": { "code": "Unauthorized", "message": "No authorization header in the request. Report '59dda51f-8df1-40ed-ac10-fc50cc9ec807:0:5/29/2023 1:04:46 AM (UTC)' to our forums for assistance or raise a support ticket.", "details": [{ "code": "Unauthorized", "message": "No authorization header in the request. Report '59dda51f-8df1-40ed-ac10-fc50cc9ec807:0:5/29/2023 1:04:46 AM (UTC)' to our forums for assistance or raise a support ticket." }] } } Headers: Server: Microsoft-HTTPAPI/2.0 Strict-Transport-Security: REDACTED x-ms-request-id: 59dda51f-8df1-40ed-ac10-fc50cc9ec807 Date: Mon, 29 May 2023 01:04:46 GMT Connection: close Content-Length: 517 Content-Type: application/json; charset=utf-8

已完成的匿名配置 #

• Event Grid主题：身份标识关闭，本地认证已禁用
• Azure函数为匿名HTTP触发器
• 已验证ENDPOINT和ACCESS KEY正确无误

HTTP Trigger代码（init.py） #

import logging
import datetime
import os
import azure.functions as azfunc

def main( req: azfunc.HttpRequest
              , outputEvent: azfunc.Out[azfunc.EventGridOutputEvent]
              ) -> azfunc.HttpResponse:
    logging.info(f"\nENDPOINT: {os.environ.get('EVENT_GRID_TOPIC_ENDPOINT')}")
    logging.info(f"\nKEY: {os.environ.get('EVENT_GRID_TOPIC_KEY')}")

    event = azfunc.EventGridOutputEvent (
            id="1234",
            data={"tag1": "value1", "tag2": "value2"},
            subject="test-subject",
            event_type="test-event-1",
            event_time=datetime.datetime.utcnow(),
            data_version="1.0"
        )
    outputEvent.set(event)
    return azfunc.HttpResponse( body=f'Event Sent... {datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")}', status_code=200 )

functions.json配置 #

{
  "scriptFile": "__init__.py",
  "bindings": [
    {
      "authLevel": "anonymous",
      "type": "httpTrigger",
      "direction": "in",
      "name": "req",
      "methods": [
        "get",
        "post"
      ],
      "route": "{*routes}"
    },
    {
      "type": "http",
      "direction": "out",
      "name": "$return"
    },
    {
      "type": "eventGrid",
      "name": "outputEvent",
      "topicEndpointUri": "EVENT_GRID_TOPIC_ENDPOINT",
      "topicKeySetting": "EVENT_GRID_TOPIC_KEY",
      "direction": "out"
    }
  ]
} 

已尝试多种发送方式，包括使用EventGridPublisherClient（仅本地运行有效，部署到Azure函数后无效），也尝试启用托管标识但尚未深入研究。认为当前配置应无需认证即可运行，寻求开发者帮助。

内容的提问来源于stack exchange，提问作者Tobbi