public IActionResult Post(string team, string name) { if (String.IsNullOrWhiteSpace(team) || string.IsNullOrWhiteSpace(name)) { var resoonse = new { error = "invalid parameters" }; return(NotFound(resoonse)); } TeamModel.AddMemberToTeam(team, name); Log($"add member {team} into team {name}"); return(Json(new Response { output = $"Total teams' members: {MemRepository<Team>.Repository.Values.Count}", })); }