public List <string> UploadFile()

        {
            var files = Request.Form.Files;

            var textFile = files.FirstOrDefault();

            var listOfCommands = new List <string>();

            var ListOfResults = new List <string>();

            using (var reader = new StreamReader(textFile.OpenReadStream()))

            {
                while (reader.Peek() >= 0)

                {
                    listOfCommands.Add(reader.ReadLine());
                }
            }


            foreach (var line in listOfCommands)
            {
                string   result = null;
                string[] commandAndParameters = line.Split(" ");

                switch (commandAndParameters[0])
                {
                case "create_product":
                    result = _productAPI.CreateProduct(commandAndParameters[1], Convert.ToInt32(commandAndParameters[2]), Convert.ToInt32(commandAndParameters[3])).Result.Content;
                    break;

                case "get_product_info":

                    result = _productAPI.GetProductInfo(commandAndParameters[1]).Result.Content;
                    break;

                case "create_order":
                    result = _orderAPI.CreateOrder(commandAndParameters[1], Convert.ToInt32(commandAndParameters[2])).Result.Content;
                    break;

                case "create_campaign":
                    result = _campaignAPI.CreateCampaign(commandAndParameters[1], commandAndParameters[2], Convert.ToInt32(commandAndParameters[3]), Convert.ToInt32(commandAndParameters[4]), Convert.ToInt32(commandAndParameters[5])).Result.Content;
                    break;

                case "get_campaign_info":
                    result = _campaignAPI.GetCampaignInfo(commandAndParameters[1]).Result.Content;
                    break;

                case "increase_time":
                    result = _timeAPI.IncreaseTime(Convert.ToInt32(commandAndParameters[1])).Result.Content;
                    break;
                }

                ListOfResults.Add(result);
            }

            _timeAPI.ResetTime();
            _campaignAPI.ResetCampaign();
            _orderAPI.ResetOrders();
            _productAPI.ResetProducts();

            return(ListOfResults);
        }