public async Task <IActionResult> OnPostGroupsAsync()
{
MemoryStream stream = new MemoryStream();
await Request.Body.CopyToAsync(stream);
stream.Position = 0;
using StreamReader reader = new StreamReader(stream);
var requestBody = reader.ReadToEnd();
if (requestBody.Length > 0)
{
var departmentId = Guid.Parse(requestBody);
IEnumerable <SelectListItem> groupsAsSelectList = await _dropDownService.GetGroups(departmentId);
return(new JsonResult(groupsAsSelectList));
}
return(null);
}