cities-schema.json

{
  "$schema": "http://json-schema.org/draft-06/schema#",
  "description": "GeoJSON file of cities/regions for OSM Extracts",
  "type": "object",
  "properties": {
      "features": {
        "type": "array",
        "items": {
          "type": "object",
          "properties": {
            "geometry": {
              "type": "object",
              "properties": {
                "coordinates": { "type": "array" },
                "type": {
                  "type": "string",
                  "enum": ["Polygon", "MultiPolygon"]
                }
              }
            },
            "properties": {
              "type": "object",
              "properties": {
                "id": {
                  "type": "string",
                  "minLength": 1,
                  "maxLength": 255,
                  "pattern": "^[a-z0-9_-]+$"
                },
                "name": {
                  "type": "string",
                  "minLength": 1,
                  "maxLength": 255,
                  "pattern": "^[a-zA-Z0-9- \/]+$"
                }
              },
              "required": ["id", "name"]
            },
            "type": {
              "type": "string",
              "enum": ["Feature"]
            }
          },
          "required": ["geometry", "properties", "type"]
        }
      }
  },
  "required": ["features"]
}