{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "https://raw.githubusercontent.com/api-evangelist/customer-io/main/json-schema/customer-io-track-metrics-schema.json", "title": "track-metrics", "description": "The base properties shared across multiple metric types.", "x-generated": "2026-10-12", "x-method": "derived", "x-generator": "derive-json-schema.py", "x-source": "openapi/customer-io-track-events-api-openapi.yml#/components/schemas/track-metrics", "x-scalar-ignore": true, "type": "object", "required": [ "delivery_id" ], "properties": { "delivery_id": { "type": "string", "description": "The CIO-Delivery-ID from the notification that you want to associate the `event` with." }, "timestamp": { "type": "integer", "format": "unix timestamp", "description": "The unix timestamp when the event occurred." } } }