Retail_manager/RMDataManagerLibrary/DataAcccess/ProductData.cs

using RMDataManagerLibrary.Internal.DataAccess;
using RMDataManagerLibrary.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace RMDataManagerLibrary.DataAcccess
{
    public class ProductData
    {
        public List<ProductModel> GetProducts()
        {
            SqlDataAccess sql = new SqlDataAccess();

            var output = sql.LoadData<ProductModel, dynamic>("dbo.spProductGetAll", new { }, "RMData");

            return output;
        }

        public ProductModel GetProductById(int productId)
        {
            SqlDataAccess sql = new SqlDataAccess();

            var output = sql.LoadData<ProductModel, dynamic>("dbo.spProductGetById", new {Id = productId}, "RMData").FirstOrDefault();

            return output;
        }
    }
}