如何正确接收PubSub JSON数据？GCP云函数接收消息不匹配求助

• 核心问题是类型不匹配：你从PubSub解码得到的payload是UTF-8格式的字符串类型，而本地定义的payloadLocal是Python原生字典类型，不同类型的变量直接做==判断必然返回False。
• 次要潜在问题：就算你把payloadLocal转成字符串做对比，JSON字符串的缩进、换行、空格差异也会导致字符串对比结果不符合预期，不是可靠的对比方式。

你自行摸索的方案通过把字符串转成字典解决了类型匹配问题，已经可以正常运行。针对你发布的是标准JSON格式消息的场景，更推荐用JSON模块做序列化处理，性能和安全性都更适配：

import base64
import json

def myfunc(event, context):
    # 接收PubSub数据并转成字典
    if 'data' in event:
        payload_str = base64.b64decode(event['data']).decode('utf-8')
        payload = json.loads(payload_str)
    else:
        payload = {}

    payloadLocal ={"considerIp":False,"wifiAccessPoints":[{"macAddress":"44:48:c1:a6:f3:d0","signalStrength":-54,"signalToNoiseRatio":0,"channel":11,"age":0},{"macAddress":"9c:1c:12:b0:45:f1","signalStrength":-43,"signalToNoiseRatio":0,"channel":11,"age":0},{"macAddress":"20:a6:cd:33:6c:f4","signalStrength":-32,"signalToNoiseRatio":0,"channel":11,"age":0}]}
    
    # 二者均为字典，结构内容一致就会判断相等
    if payloadLocal == payload:
        print("Payload same")
    else:
        print("Payload different")

内容的提问来源于stack exchange，提问作者codeheadache