{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/amazon-cloudwatch/refs/heads/main/json-structure/cloudwatch-alarm-structure.json",
  "name": "Alarm",
  "description": "Represents a CloudWatch metric alarm",
  "type": "object",
  "properties": {
    "alarmName": {
      "type": "string",
      "description": "The name of the alarm"
    },
    "alarmArn": {
      "type": "string",
      "description": "The ARN of the alarm"
    },
    "alarmDescription": {
      "type": "string",
      "description": "The description of the alarm"
    },
    "stateValue": {
      "type": "string",
      "description": "The state value for the alarm",
      "enum": [
        "OK",
        "ALARM",
        "INSUFFICIENT_DATA"
      ]
    },
    "stateReason": {
      "type": "string",
      "description": "An explanation for the alarm state"
    },
    "stateUpdatedTimestamp": {
      "type": "datetime",
      "description": "The time stamp of the last update to the state"
    },
    "metricName": {
      "type": "string",
      "description": "The name of the metric associated with the alarm"
    },
    "namespace": {
      "type": "string",
      "description": "The namespace of the metric associated with the alarm"
    },
    "statistic": {
      "type": "string",
      "description": "The statistic for the metric associated with the alarm"
    },
    "dimensions": {
      "type": "array",
      "description": "The dimensions for the metric associated with the alarm",
      "items": {
        "type": "object",
        "properties": {
          "name": {
            "type": "string"
          },
          "value": {
            "type": "string"
          }
        }
      }
    },
    "period": {
      "type": "int32",
      "description": "The period in seconds over which the statistic is applied"
    },
    "evaluationPeriods": {
      "type": "int32",
      "description": "The number of periods over which data is compared to the threshold"
    },
    "threshold": {
      "type": "double",
      "description": "The value to compare with the specified statistic"
    },
    "comparisonOperator": {
      "type": "string",
      "description": "The arithmetic operation to use when comparing the statistic and threshold"
    },
    "treatMissingData": {
      "type": "string",
      "description": "How missing data points are treated"
    },
    "actionsEnabled": {
      "type": "boolean",
      "description": "Whether actions are executed during alarm state changes"
    },
    "alarmActions": {
      "type": "array",
      "description": "The actions to execute when the alarm transitions to ALARM state",
      "items": {
        "type": "string"
      }
    },
    "okActions": {
      "type": "array",
      "description": "The actions to execute when the alarm transitions to OK state",
      "items": {
        "type": "string"
      }
    },
    "insufficientDataActions": {
      "type": "array",
      "description": "The actions to execute when the alarm transitions to INSUFFICIENT_DATA state",
      "items": {
        "type": "string"
      }
    }
  }
}