Metrics

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Metrics

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Metrics contain application metric data captured by an APM agent.

Metric Schema

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APM Server uses JSON Schema to validate requests. The specification for metrics is defined on GitHub and included below:

{
    "$id": "docs/spec/metricsets/metricset.json",
    "type": "object",
    "description": "Data captured by an agent representing an event occurring in a monitored service",
    "allOf": [
        { "$ref": "../timestamp_epoch.json"},
        { "$ref": "../span_type.json" },
        { "$ref": "../span_subtype.json" },
        { "$ref": "../transaction_name.json" },
        { "$ref": "../transaction_type.json" },
        {
            "properties": {
                "samples": {
                    "type": [
                        "object"
                    ],
                    "description": "Sampled application metrics collected from the agent.",
                    "patternProperties": {
                        "^[^*\"]*$": {
                            "$ref": "sample.json"
                        }
                    },
                    "additionalProperties": false
                },
                "tags": {
                    "$ref": "../tags.json"
                }
            },
            "required": ["samples"]
        }
    ]
}

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