{
  "$id": "docs/spec/v2/metricset",
  "type": "object",
  "properties": {
    "samples": {
      "description": "Samples hold application metrics collected from the agent.",
      "type": "object",
      "additionalProperties": false,
      "patternProperties": {
        "^[^*\"]*$": {
          "type": [
            "null",
            "object"
          ],
          "properties": {
            "value": {
              "description": "Value holds the value of a single metric sample.",
              "type": "number"
            }
          },
          "required": [
            "value"
          ]
        }
      }
    },
    "span": {
      "description": "Span holds selected information about the correlated transaction.",
      "type": [
        "null",
        "object"
      ],
      "properties": {
        "subtype": {
          "description": "Subtype is a further sub-division of the type (e.g. postgresql, elasticsearch)",
          "type": [
            "null",
            "string"
          ],
          "maxLength": 1024
        },
        "type": {
          "description": "Type expresses the correlated span's type as keyword that has specific relevance within the service's domain, eg: 'request', 'backgroundjob'.",
          "type": [
            "null",
            "string"
          ],
          "maxLength": 1024
        }
      }
    },
    "tags": {
      "description": "Tags are a flat mapping of user-defined tags. On the agent side, tags are called labels. Allowed value types are string, boolean and number values. Tags are indexed and searchable.",
      "type": [
        "null",
        "object"
      ],
      "additionalProperties": {
        "type": [
          "null",
          "string",
          "boolean",
          "number"
        ],
        "maxLength": 1024
      }
    },
    "timestamp": {
      "description": "Timestamp holds the recorded time of the event, UTC based and formatted as microseconds since Unix epoch",
      "type": [
        "null",
        "integer"
      ]
    },
    "transaction": {
      "description": "Transaction holds selected information about the correlated transaction.",
      "type": [
        "null",
        "object"
      ],
      "properties": {
        "name": {
          "description": "Name of the correlated transaction.",
          "type": [
            "null",
            "string"
          ],
          "maxLength": 1024
        },
        "type": {
          "description": "Type expresses the correlated transaction's type as keyword that has specific relevance within the service's domain, eg: 'request', 'backgroundjob'.",
          "type": [
            "null",
            "string"
          ],
          "maxLength": 1024
        }
      }
    }
  },
  "required": [
    "samples"
  ]
}