{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://api.revcontent.io/schemas/content-item",
  "title": "ContentItem",
  "description": "A RevContent ad content item associated with a boost, including performance metrics.",
  "type": "object",
  "properties": {
    "content_id": {
      "type": "integer",
      "description": "Unique content item identifier"
    },
    "boost_id": {
      "type": "integer",
      "description": "Identifier of the parent boost"
    },
    "headline": {
      "type": "string",
      "description": "Ad content headline text"
    },
    "image_url": {
      "type": "string",
      "format": "uri",
      "description": "URL of the content image"
    },
    "impressions": {
      "type": "integer",
      "minimum": 0,
      "description": "Total impressions served"
    },
    "clicks": {
      "type": "integer",
      "minimum": 0,
      "description": "Total clicks recorded"
    },
    "ctr": {
      "type": "number",
      "minimum": 0,
      "description": "Click-through rate (clicks / impressions)"
    },
    "spend": {
      "type": "number",
      "minimum": 0,
      "description": "Total spend in USD"
    },
    "conversions": {
      "type": "integer",
      "minimum": 0,
      "description": "Total conversions attributed"
    },
    "cost_per_conversion": {
      "type": "number",
      "minimum": 0,
      "description": "Average cost per conversion in USD"
    }
  },
  "required": ["content_id", "boost_id"]
}