schema.json

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://github.com/easierdata/IPFS/blob/main/json-schema/schema.json",
  "title": "IPFS Extension",
  "description": "STAC IPFS Extension to a STAC Item and STAC Assets.",
  "oneOf": [
    {
      "$comment": "This is the schema for STAC Items.",
      "allOf": [
        {
          "type": "object",
          "required": [
            "type",
            "properties",
            "assets"
          ],
          "properties": {
            "type": {
              "const": "Feature"
            },
            "properties": {
              "allOf": [
                {
                  "$comment": "Require fields here for item properties.",
                  "required": []
                },
                {
                  "$ref": "#/definitions/fields"
                }
              ]
            },
            "assets": {
              "type": "object",
              "additionalProperties": {
                "$ref": "#/definitions/fields"
              }
            }
          }
        },
        {
          "$ref": "#/definitions/stac_extensions"
        }
      ]
    },
    {
      "$comment": "This is the schema for STAC Collections",
      "allOf": [
        {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "const": "Collection"
            },
            "assets": {
              "type": "object",
              "additionalProperties": {
                "$ref": "#/definitions/fields"
              }
            },
            "item_assets": {
              "type": "object",
              "additionalProperties": {
                "$ref": "#/definitions/fields"
              }
            }
          }
        },
        {
          "$ref": "#/definitions/stac_extensions"
        }
      ]
    }
  ],  
  "definitions": {
    "stac_extensions": {
      "type": "object",
      "required": [
        "stac_extensions"
      ],
      "properties": {
        "stac_extensions": {
          "type": "array",
          "contains": {
            "const": "https://github.com/easierdata/IPFS/blob/main/json-schema/schema.json"
          }
        }
      }
    },
    "fields": {
      "type": "object",
      "properties": {
        "ipfs:payload-cid": {
          "title": "Payload CID",
          "type": "string"
        }
      }
    }
  }
}