{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/amazon-iot-events/refs/heads/main/json-schema/iot-events-asset-property-value-schema.json",
  "title": "AssetPropertyValue",
  "description": "<p>A structure that contains value information. For more information, see <a href=\"https://docs.aws.amazon.com/iot-sitewise/latest/APIReference/API_AssetPropertyValue.html\">AssetPropertyValue</a> in the <i>AWS IoT SiteWise API Reference</i>.</p> <p>You must use expressions for all parameters in <code>AssetPropertyValue</code>. The expressions accept literals, operators, functions, references, and substitution templates.</p> <p class=\"title\"> <b>Examples</b> </p> <ul> <li> <p>For literal values, the expressions must contain single quotes. For example, the value for the <code>quality</code> parameter can be <code>'GOOD'</code>.</p> </li> <li> <p>For references, you must specify either variables or input values. For example, the value for the <code>quality</code> parameter can be <code>$input.TemperatureInput.sensorData.quality</code>.</p> </li> </ul> <p>For more information, see <a href=\"https://docs.aws.amazon.com/iotevents/latest/developerguide/iotevents-expressions.html\">Expressions</a> in the <i>AWS IoT Events Developer Guide</i>.</p>",
  "type": "object",
  "properties": {
    "value": {
      "allOf": [
        {
          "$ref": "#/components/schemas/AssetPropertyVariant"
        },
        {
          "description": "The value to send to an asset property."
        }
      ]
    },
    "timestamp": {
      "allOf": [
        {
          "$ref": "#/components/schemas/AssetPropertyTimestamp"
        },
        {
          "description": "The timestamp associated with the asset property value. The default is the current event time."
        }
      ]
    },
    "quality": {
      "allOf": [
        {
          "$ref": "#/components/schemas/AssetPropertyQuality"
        },
        {
          "description": "The quality of the asset property value. The value must be <code>'GOOD'</code>, <code>'BAD'</code>, or <code>'UNCERTAIN'</code>."
        }
      ]
    }
  }
}