schema.json

{
  "$schema": "http://json-schema.org/draft-06/schema#",
  "type": "array",
  "description": "Formatter URLs for OpenStreetMap tags",
  "items": {
    "$ref": "#/definitions/Tag2LinkElement"
  },
  "definitions": {
    "Tag2LinkElement": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "key": {
          "type": "string",
          "description": "OSM tag key"
        },
        "url": {
          "type": "string",
          "description": "URL template or formatter URL: replace `$1` with the tag value"
        },
        "source": {
          "type": "string",
          "description": "Source of this formatter URL"
        },
        "rank": {
          "$ref": "#/definitions/Rank",
          "description": "Rank or relative importance of this formatter URL"
        }
      },
      "required": ["key", "url"],
      "title": "Tag2LinkElement"
    },
    "Rank": {
      "type": "string",
      "enum": ["preferred", "normal", "deprecated"],
      "title": "Rank"
    }
  }
}