json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "type": "object",
      "description": "Openwifimap API https://github.com/freifunk/openwifimap-api",
      "properties": {
          "total_rows": {
              "title": "Total rows",
              "type": "integer",
              "description": "Total number of results"
          },
          "offset": {
              "title": "Offset",
              "type": "integer"
          },
          "rows": {
              "title": "Rows",
              "type": "array",
              "_uniqueItems": true,
              "items": {
                  "type": "object",
                  "properties": {
                      "id": {
                          "type": "string"
                      },
                      "key": {
                          "type": "string"
                      },
                      "value": {
                          "type": "object",
                          "properties": {
                              "hostname": {
                                  "type": "string"
                              },
                              "ctime": {
                                  "type": "string"
                              },
                              "mtime": {
                                  "type": "string"
                              },
                              "id": {
                                  "type": "string"
                              },
                              "latlng": {
                                  "type": "array",
                                  "items": {
                                      "type": "number"
                                  },
                                  "minItems": 2,
                                  "maxItems": 2
                              }
                          },
                          "required": [
                              "hostname",
                              "ctime",
                              "mtime",
                              "id",
                              "latlng"
                          ]
                      }
                  }
              }
          }
      }
  }