public async Task HandleAsync(ExamFinalizeCommand command)
{
var exam = _context.Exam.FirstOrDefault(x => x.Id == command.ExamId);
exam.Finalized = true;
await _context.SaveChangesAsync();
}
public async Task <IActionResult> FinalizeExam(ExamFinalizeCommand command, int courseId)
{
await _commandBus.ExecuteAsync(command);
return(Ok());
}