我怎样才能适当地解析这个 json 消息以使工作与我的后端代码保持一致？

Question

我正在使用 SQS 发送消息，我正在本地测试以进行反复试验。

我在从下面复制的模拟消息正文中提取 json 密钥时遇到问题，我不确定为什么。当我运行处理程序时，它会运行下面的代码。

我正在尝试为此确定正确的格式。但我也在 JSON 验证器中对其进行了测试，一切都通过了。检索实际密钥（例如 policy_id）时，我下面的代码似乎有问题 我收到错误消息 KeyError: 'policy_type'.

有谁知道我如何从模拟 json 消息中提取密钥或我可以在我的模拟 json 消息中更改任何内容以使其工作？任何建议也可以提供帮助。

def parse_alert_message(sqs_message):
 
    try:
        alert = json.loads(sqs_message)

        if alert['alertId'] == 'P-0':
            return {'error': "Error", 'data': alert['alertId']}

        parsed_alert = {
            'policy_type'        : alert['policyType'],
            'policy_Id'          : alert['policyId'],
            'account' : {
                'name'           : alert['accountName'],
                'account_id'     : alert['accountId']
            },
            'region'             : alert['resourceRegionId'],      
            'metadata'           : alert['resource'],
            'severity'           : alert['severity']
        }

    except Exception as e:
        return {'error': str(e), 'data': None}    


def handler():

    print(event['Records'])

这是测试 JSON 消息

      "Records": [
        {
            "messageId": "059f36b4-87a3-44ab-83d2-661975830a7d",
            "receiptHandle": "AQEBwJnKyrHigUMZj6rYigCgxlaS3SLy0a...",
            "body": {"severity":"CRITICAL","alertTs": "timestamp", "data":"P-123", "resource":"resource","resourceId":"riskybucket4testing", "policyType": "config", "policyName": "PolicyNameTest", "policyId": "4daa435b-fa46-457a-9359-6a4b4a43a442", "alertRuleName":"JTB-SQS Alerts","alertRemediationImpact":"null","accountName":"jtb75-002-pan","hasFinding":"false","resourceRegionId":"us-east-1","alertRemediationCli":"null","source":"Prisma Cloud","cloudType":"aws", "accountId": "12345678", "alertId":"P-1000"},
            "attributes": {
                "ApproximateReceiveCount": "1",
                "SentTimestamp": "1545082649183",
                "SenderId": "AIDAIENQZJOLO23YVJ4VO",
                "ApproximateFirstReceiveTimestamp": "1545082649185"
            },
            "messageAttributes": {},
            "md5OfBody": "098f6bcd4621d373cade4e832627b4f6",
            "eventSource": "aws:sqs",
            "eventSourceARN": "arn:aws:sqs:us-east-2:123456789012:my-queue",
            "awsRegion": "us-east-2"
        }
    ]
}