使用REST API创建Azure Monitor警报规则时遇格式错误求助

错误原因 #

你使用的是2016-03-01版本的Microsoft.Insights/alertrules API，这个旧版API不支持Microsoft.Azure.Monitor.SingleResourceMultipleMetricCriteria类型的条件格式，这是导致请求内容不被支持的核心原因。旧版API使用的是完全不同的条件结构。

旧版API（2016-03-01）有效Payload示例 #

以下是符合该API版本的指标警报规则Payload：

{
  "location": "westus",
  "properties": {
    "description": "Test Alert for TokenTransaction",
    "isEnabled": true,
    "severity": 2,
    "evaluationFrequency": "PT1M",
    "windowSize": "PT5M",
    "condition": {
      "odata.type": "Microsoft.Azure.Monitor.MetricAlertSingleResourceMultipleMetricCriteria",
      "metricName": "TokenTransaction",
      "metricNamespace": "Microsoft.CognitiveServices/accounts",
      "operator": "GreaterThan",
      "threshold": 50000,
      "timeAggregation": "Average",
      "dimensions": [
        {
          "name": "FeatureName",
          "operator": "Include",
          "values": ["gpt-4"]
        }
      ]
    },
    "actions": [],
    "scopes": [
      "/subscriptions/subid/resourceGroups/tgname/providers/Microsoft.CognitiveServices/accounts/openainame"
    ]
  }
}

关键修正点 #

• 将odata.type改为旧版API支持的Microsoft.Azure.Monitor.MetricAlertSingleResourceMultipleMetricCriteria
• 移除allOf数组结构，旧版API直接在condition对象中定义单指标条件（若需多指标组合，需使用旧版对应的多条件格式）
• isEnabled的值改为布尔类型true而非字符串"true"

推荐使用新版Metric Alerts API（2018-03-01） #

如果没有必须使用旧版API的限制，建议使用新版Microsoft.Insights/metricAlerts API（api-version=2018-03-01），它支持更灵活的条件配置，也更贴合你最初写的Payload结构。以下是对应示例：

{
  "location": "global",
  "properties": {
    "description": "Test Alert for TokenTransaction",
    "severity": 2,
    "enabled": true,
    "evaluationFrequency": "PT1M",
    "windowSize": "PT5M",
    "criteria": {
      "odata.type": "Microsoft.Azure.Monitor.SingleResourceMultipleMetricCriteria",
      "allOf": [
        {
          "name": "metric1",
          "metricNamespace": "Microsoft.CognitiveServices/accounts",
          "metricName": "TokenTransaction",
          "operator": "GreaterThan",
          "threshold": 50000,
          "timeAggregation": "Average",
          "dimensions": [
            {
              "name": "FeatureName",
              "operator": "Include",
              "values": ["gpt-4"]
            }
          ]
        }
      ]
    },
    "scopes": [
      "/subscriptions/subid/resourceGroups/tgname/providers/Microsoft.CognitiveServices/accounts/openainame"
    ],
    "actions": []
  }
}

新版API请求示例 #

PUT https://management.azure.com/subscriptions/subid/resourceGroups/rgname/providers/Microsoft.Insights/metricAlerts/rulename?api-version=2018-03-01
Authorization: Bearer <your-token>
Content-Type: application/json

内容的提问来源于stack exchange，提问作者Murali