json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "additionalProperties": false,
      "id": "http://localhost:3000/schemas/register-request.json#",
      "properties": {
          "email": {
              "_format": "email",
              "type": "string"
          },
          "password": {
              "minLength": 6,
              "type": "string"
          }
      },
      "required": [
          "email",
          "password"
      ],
      "title": "Register request",
      "type": "object"
  }