public async Task <IActionResult> AssignBadgeAsync([FromBody] AssignBadgeDTO assignBadgeDTO)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            var result = await _service.AssignBadge(assignBadgeDTO);

            if (result != null)
            {
                return(Ok(result));
            }

            return(BadRequest());
        }