schema.json

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://stac-extensions.github.io/label/v1.0.1/schema.json#",
  "title": "Label Extension",
  "description": "STAC Label Extension for STAC Items and STAC Collections.",
  "oneOf": [
    {
      "$comment": "This is the schema for STAC Items.",
      "allOf": [
        {
          "type": "object",
          "required": [
            "type",
            "properties",
            "links",
            "assets"
          ],
          "properties": {
            "type": {
              "const": "Feature"
            },
            "properties": {
              "allOf": [
                {
                  "$comment": "Require fields here for item properties.",
                  "required": [
                    "label:properties",
                    "label:description",
                    "label:type"
                  ]
                },
                {
                  "$ref": "#/definitions/fields"
                }
              ]
            },
            "links": {
              "type": "array",
              "items": {
                "$ref": "#/definitions/link_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://stac-extensions.github.io/label/v1.0.1/schema.json"
          }
        }
      }
    },
    "link_fields": {
      "type": "object",
      "properties": {
        "label:assets": {
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      },
      "patternProperties": {
        "^(?!label:)": {}
      },
      "additionalProperties": false
    },
    "fields": {
      "type": "object",
      "properties": {
        "label:properties": {
          "title": "Property",
          "oneOf": [
            {
              "type": "array",
              "minItems": 1,
              "items": {
                "type": "string"
              }
            },
            {
              "type": "null"
            }
          ]
        },
        "label:classes": {
          "title": "Classes",
          "type": "array",
          "items": {
            "type": "object",
            "required": [
              "name",
              "classes"
            ],
            "properties": {
              "name": {
                "title": "Name"
              },
              "classes": {
                "title": "Classes",
                "oneOf": [
                  {
                    "type": "array",
                    "items": {
                      "type": "string"
                    }
                  },
                  {
                    "type": "array",
                    "items": {
                      "type": "number"
                    }
                  }
                ]
              }
            }
          }
        },
        "label:description": {
          "title": "Description",
          "type": "string",
          "minLength": 1
        },
        "label:type": {
          "title": "Type",
          "type": "string",
          "enum": [
            "raster",
            "vector"
          ]
        },
        "label:tasks": {
          "title": "Task",
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "label:methods": {
          "title": "Method",
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "label:overviews": {
          "title": "Overview",
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "property_key": {
                "title": "Property Key",
                "type": "string"
              },
              "counts": {
                "title": "Counts",
                "type": "array",
                "items": {
                  "type": "object",
                  "properties": {
                    "name": {
                      "title": "Class Name",
                      "type": "string"
                    },
                    "count": {
                      "title": "Count",
                      "type": "integer"
                    }
                  }
                }
              },
              "statistics": {
                "title": "Statistics",
                "type": "array",
                "items": {
                  "type": "object",
                  "properties": {
                    "name": {
                      "title": "Stat Name",
                      "type": "string"
                    },
                    "value": {
                      "title": "Value",
                      "type": "number"
                    }
                  }
                }
              }
            }
          }
        }
      },
      "if": {
        "properties": {
          "label:type": {
            "const": "raster"
          }
        }
      },
      "then": {
        "properties": {
          "label:classes": {
            "items": {
              "properties": {
                "name": {
                  "type": "null"
                }
              }
            }
          }
        }
      },
      "else": {
        "properties": {
          "label:classes": {
            "items": {
              "properties": {
                "name": {
                  "type": "string",
                  "minLength": 1
                }
              }
            }
          }
        }
      },
      "patternProperties": {
        "^(?!label:)": {}
      },
      "additionalProperties": false
    }
  }
}