private JObject give_prize_to_winner(List <Bet> bets, double winner_number)
        {
            JObject message   = new JObject();
            JObject bets_data = new JObject();

            message.Add("winner_number", winner_number);
            for (int i = 0; i < bets.Count; i++)
            {
                float increase_factor = 0f;
                if ((bets[i].Bet_number == 38 && winner_number % 2 == 0) || (bets[i].Bet_number == 37 && winner_number % 2 == 1))
                {
                    increase_factor = 1.8f;
                }
                else if (bets[i].Bet_number == winner_number)
                {
                    increase_factor = 5f;
                }
                Global_functions.Update_player_credit(bets[i].Id_player, bets[i].Value * increase_factor);
                JObject current_bet = add_data_current_bet(bets[i], increase_factor);
                bets_data.Add(bets[i].Id.ToString(), current_bet);
            }
            message.Add("bets", bets_data);

            return(message);
        }
        //Body params: string id_player, double value, int bet_number, string id_game
        //bet_number: from 0 until 36 for specific number bet, 37 for odd numbers, 38 for even numbers
        public string create([FromBody] object response)
        {
            JObject json_params = JObject.Parse(response.ToString());

            try
            {
                Global_functions.Update_player_credit((String)json_params["id_player"], -1 * (Double)json_params["value"]);
                IMongoCollection <Bet> bets = c.Database.GetCollection <Bet>("bet");
                Bet nBet = new Bet {
                    Id_game = (String)json_params["id_game"], Id_player = (String)json_params["id_player"], Bet_number = (Int32)json_params["bet_number"], Value = (Double)json_params["value"]
                };
                bets.InsertOne(nBet);

                return(nBet.Id.ToString());
            }
            catch
            {
                return("-1");
            }
        }