{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "required": ["id", "name", "country", "region", "identifiers", "location", "timezone"],
  "properties": {
    "id": {
      "type": "string",
      "pattern": "^[A-Z0-9$]{5}$",
      "description": "Meteostat ID (5 characters)"
    },
    "name": {
      "type": "object",
      "required": ["en"],
      "properties": {
        "en": {
          "type": "string",
          "minLength": 1
        }
      },
      "additionalProperties": {
        "type": "string"
      }
    },
    "country": {
      "type": "string",
      "pattern": "^[A-Z]{2}$",
      "description": "ISO 3166-1 alpha-2 country code"
    },
    "region": {
      "type": ["string", "null"],
      "description": "ISO 3166-2 state or region code"
    },
    "identifiers": {
      "type": "object",
      "additionalProperties": {
        "type": "string"
      }
    },
    "location": {
      "type": "object",
      "required": ["latitude", "longitude", "elevation"],
      "properties": {
        "latitude": {
          "type": "number",
          "minimum": -90,
          "maximum": 90
        },
        "longitude": {
          "type": "number",
          "minimum": -180,
          "maximum": 180
        },
        "elevation": {
          "type": "integer"
        }
      },
      "additionalProperties": false
    },
    "timezone": {
      "type": "string",
      "minLength": 1
    }
  },
  "additionalProperties": false
}