json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "definitions": {
          "httpUri": {
              "type": "string",
              "allOf": [
                  {
                      "format": "uri"
                  },
                  {
                      "pattern": "^https?://"
                  }
              ]
          }
      },
      "type": "object",
      "properties": {
          "name": {
              "type": "string"
          },
          "uri": {
              "$ref": "#/definitions/httpUri"
          },
          "index": {
              "type": "integer",
              "minimum": 0
          }
      },
      "required": [
          "name",
          "uri"
      ],
      "additionalProperties": false
  }