json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "type": "object",
      "properties": {
          "id": {
              "type": "string",
              "description": "The group id"
          },
          "name": {
              "type": "string",
              "description": "The group name",
              "minLength": 1
          }
      },
      "claroline": {
          "requiredAtCreation": [
              "name"
          ],
          "ids": [
              "id",
              "name"
          ]
      }
  }