public async Task <IHttpActionResult> AddAnAdmin(int userID, int ownerID, int groupID) { if (!ModelState.IsValid) { return(BadRequest(ModelState)); } var group = await db.Groups.FirstOrDefaultAsync(g => g.GroupID == groupID); if (group == null) { return(NotFound()); } var user = await db.Users.FirstOrDefaultAsync(u => u.UserID == userID); if (user == null) { return(NotFound()); } await db.AddAnAdmin(groupID, ownerID, userID); return(Ok()); }