ActivityPub Unofficial JSON Schema

Collection

{
  "$id": "http://www.w3.org/ns/activitystreams/Collection.json",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Collection",
  "description": "https://www.w3.org/TR/activitystreams-vocabulary/#dfn-collection",

  "allOf": [
    { "$ref": "Object.json#" },
    {
      "properties": {
        "items": { "$ref": "#/definitions/items" },
        "orderedItems": { "$ref": "#/definitions/orderedItems" },
        "totalItems": { "$ref": "#/definitions/totalItems" },
        "current": { "$ref": "#/definitions/current" },
        "first": { "$ref": "#/definitions/first" },
        "last": { "$ref": "#/definitions/last" }
      }
    }
  ],

  "definitions": {
    "items": {
      "description": "Identifies the unordered items contained in a collection.",
      "allOf": [{ "$ref": "Object.json#/definitions/possibleRefArray" }]
    },
    "orderedItems": {
      "$comment": "FIXME ISSUE EXISTS https://github.com/w3c/activitystreams/issues/437",
      "description": "Identifies the ordered items contained in a collection.",
      "allOf": [{ "$ref": "Object.json#/definitions/possibleRefArray" }]
    },
    "totalItems": {
      "description": "A non-negative integer specifying the total number of objects contained by the logical view of the collection.",
      "type": "integer",
      "minimum": 0
    },
    "current": {
      "description": "In a paged Collection, indicates the page that contains the most recently updated member items.",
      "allOf": [{ "$ref": "CollectionPage.json#/definitions/possibleRef" }]
    },
    "first": {
      "description": "In a paged Collection, indicates the furthest preceeding page of items in the collection.",
      "allOf": [{ "$ref": "CollectionPage.json#/definitions/possibleRef" }]
    },
    "last": {
      "description": "In a paged Collection, indicates the furthest proceeding page of the collection.",
      "allOf": [{ "$ref": "CollectionPage.json#/definitions/possibleRef" }]
    },

    "possibleType": {
      "enum": [
        "Collection",
        "http://www.w3.org/ns/activitystreams#Collection",
        "https://www.w3.org/ns/activitystreams#Collection"
      ]
    },
    "byTypeRef": {
      "properties": {
        "type": {
          "oneOf": [
            { "$ref": "#/definitions/possibleType" },
            { "type": "array", "contains": { "$ref": "#/definitions/possibleType" } }
          ]
        }
      }
    },
    "possibleRef": {
			"oneOf": [
				{ "$ref": "#" },
        { "$ref": "Link.json#" },
				{
					"type": "string",
					"format": "uri",
					"links": [{
						"rel": "full",
						"href": "{+$}"
					}]
				}
			]
		},
    "possibleRefArray": {
      "oneOf": [
        { "$ref": "#/definitions/possibleRef" },
        {
          "type": "array",
          "items": { "$ref": "#/definitions/possibleRef" }
        }
      ]
    }
  }
}

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