public IActionResult Create(string sheetname)
{
if (IsSheetExist(sheetname))
{
throw new RESTfulException(HttpStatusCode.BadRequest, $"The sheet {sheetname} is exist");
}
SheetsService.AddSheet(GoogleSheetsApi.SpreadSheetId, sheetname);
return(CreatedAtAction(nameof(Create), sheetname));
}