public async Task <IActionResult> MakeConnectionRequest([FromQuery(Name = "userName")] string userName)
        {
            var userId = User.FindFirstValue(ClaimTypes.NameIdentifier);

            try
            {
                var newRelation = await relationshipService.MakeFriendRequest(userName, userId);

                return(Ok(newRelation));
            } catch (ItemNotFoundException e)
            {
                return(BadRequest(e.Message));
            }
        }