{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://utilityapi.com/schemas/interval",
  "title": "Interval",
  "description": "A meter usage interval measurement",
  "type": "object",
  "properties": {
    "uid": {
      "type": "string",
      "description": "Unique identifier for the interval"
    },
    "meter_uid": {
      "type": "string",
      "description": "UID of the meter this interval belongs to"
    },
    "start": {
      "type": "string",
      "format": "date-time",
      "description": "Start of the interval period"
    },
    "end": {
      "type": "string",
      "format": "date-time",
      "description": "End of the interval period"
    },
    "kwh": {
      "type": "number",
      "minimum": 0,
      "description": "Energy consumption in kWh during this interval"
    },
    "created": {
      "type": "string",
      "format": "date-time",
      "description": "When the interval was recorded"
    }
  },
  "required": ["uid", "meter_uid", "start", "end", "kwh"]
}