cafe.shelf.item

{
  "description": "A link on the shelf.",
  "key": "tid",
  "record": {
    "properties": {
      "createdAt": {
        "format": "datetime",
        "type": "string"
      },
      "source": {
        "type": "string"
      },
      "summary": {
        "type": "string"
      },
      "title": {
        "type": "string"
      },
      "url": {
        "format": "uri",
        "type": "string"
      }
    },
    "required": [
      "url",
      "createdAt"
    ],
    "type": "object"
  },
  "type": "record"
}