asset.json

{
  "$schema": "http://json-schema.org/draft-06/schema#",
  "id": "asset.json#",
  "title": "Asset / Feature / Collection / Thingy",
  "type": "object",
  "description":
    "This object represents the metadata associated with a thingy.",
  "additionalProperties": true,

  "allOf": [
    {
      "$ref": "#/definitions/core"
    },
    {
      "properties": {
        "properties": {
          "required": ["startDate", "endDate", "links"]
        }
      },
      "required": ["id", "type", "geometry"]
    }
  ],

  "definitions": {
    "core": {
      "allOf": [
        {
          "oneOf": [
            { "$ref": "geojson.json#/definitions/feature" },
            { "$ref": "geojson.json#/definitions/featurecollection" }
          ]
        },
        {
          "type": "object",
          "properties": {
            "geometry": {
              "properties": {
                "type": {
                  "enum": ["Polygon", "MultiPolygon"]
                }
              }
            },
            "id": {
              "title": "Provider ID",
              "description": "Provider item ID",
              "type": "string"
            },
            "properties": {
              "type": "object",
              "properties": {
                "startDate": {
                  "title": "Date Start",
                  "description": "First date/time",
                  "type": "string",
                  "format": "date-time"
                },
                "endDate": {
                  "title": "Date End",
                  "description": "Last date/time",
                  "type": "string",
                  "format": "date-time"
                },
                "provider": {
                  "title": "Provider",
                  "description": "Provider name and contact",
                  "oneOf": [
                    {
                      "type": "string"
                    },
                    {
                      "$ref": "#/definitions/entity"
                    }
                  ]
                },
                "license": {
                  "title": "Data license",
                  "description": "Data license name based on SPDX License List"
                },
                "links": {
                  "title": "Resource links",
                  "description":
                    "Links to resources, could be download or other URLs",
                  "type": "object",
                  "additionalProperties": {
                    "type": "string",
                    "format": "uri"
                  }
                }
              }
            }
          }
        }
      ]
    },
    "entity": {
      "type": "object",
      "properties": {
        "name": {
          "type": "string"
        },
        "email": {
          "type": "string",
          "format": "email"
        },
        "phone": {
          "type": "string"
        },
        "url": {
          "type": "string",
          "format": "uri"
        }
      }
    }
  }
}