{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://dopost.co/schemas/media-asset.schema.json",
  "title": "MediaAsset",
  "type": "object",
  "required": ["mediaId"],
  "properties": {
    "mediaId": { "type": "string" },
    "url": {
      "type": "string",
      "format": "uri",
      "description": "Presigned upload URL on creation; CDN/serving URL once finalized."
    },
    "type": { "type": "string", "description": "Media classification, e.g. image, video." },
    "fileName": { "type": "string" },
    "contentType": { "type": "string" },
    "sizeInBytes": { "type": "integer", "minimum": 1 },
    "createdAt": { "type": "string", "format": "date-time" }
  },
  "additionalProperties": true
}