catalog.json

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "catalog.json#",
  "title": "STAC Catalog Specification",
  "description": "This object represents Catalogs in a SpatioTemporal Asset Catalog.",
  "allOf": [
    {
      "$ref": "#/definitions/catalog"
    }
  ],
  "definitions": {
    "catalog": {
      "title": "Catalog",
      "type": "object",
      "required": [
        "stac_version",
        "id",
        "description",
        "links"
      ],
      "properties": {
        "stac_version": {
          "title": "STAC version",
          "type": "string",
          "const": "0.8.1"
        },
        "stac_extensions": {
          "title": "STAC extensions",
          "type": "array",
          "uniqueItems": true,
          "items": {
            "type": "string"
          }
        },
        "id": {
          "title": "Identifier",
          "type": "string"
        },
        "title": {
          "title": "Title",
          "type": "string"
        },
        "description": {
          "title": "Description",
          "type": "string"
        },
        "links": {
          "title": "Links",
          "type": "array",
          "items": {
            "$ref": "#/definitions/link"
          }
        },
        "summaries": {
          "$ref": "#/definitions/summaries"
        }
      }
    },
    "summaries": {
      "type": "object",
      "additionalProperties": {
        "oneOf": [
          {
            "title": "Stats",
            "type": "object",
            "required": [
              "min",
              "max"
            ],
            "properties": {
              "min": {
                "title": "Minimum value",
                "type": ["number", "string"]
              },
              "max": {
                "title": "Maximum value",
                "type": ["number", "string"]
              }
            }
          },
          {
            "title": "Set of values",
            "type": "array",
            "minItems": 1,
            "items": {
              "description": "Any data type could occur."
            }
          }
        ]
      }
    },
    "link": {
      "type": "object",
      "required": [
        "rel",
        "href"
      ],
      "properties": {
        "href": {
          "title": "Link reference",
          "type": "string"
        },
        "rel": {
          "title": "Link relation type",
          "type": "string"
        },
        "type": {
          "title": "Link type",
          "type": "string"
        },
        "title": {
          "title": "Link title",
          "type": "string"
        }
      }
    }
  }
}