This is a sample for the Simulator used for Azure Personalizer

Simulator.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Simulator
{
    public class Simulator
    {
        string[] occassionContextValues = new string[] { "birthday", "meal", "catchup" };
        string[] varietyContextValues = new string[] { "cake", "dessert", "cupcake", "shake" };

        private Random rand = new Random(DateTime.Now.Millisecond);
        private int rewardCounter = 0;
        public void SimulateEvents(int count)
        {
            float sumRewards = 0;

            for (int i = 0; i < count; i++)
            {
                Console.Write(i.ToString() + ":");
                sumRewards = sumRewards + SimulateEvent();

                Console.Write("[{0}]", sumRewards / (i + 2));

            }
        }

        public float SimulateEvent()
        {

            UserSimulator userSimulator = new UserSimulator(rand);

            var currentContext = GetSimulatedContext();
            
            float reward = 0f;

            try
            {
                string simulationResponse = userSimulator.ReturnSimulatedAction(currentContext);
                Personalizer.PersonalizerLibrary personalizerLibrary = new Personalizer.PersonalizerLibrary();
                var personalizerResponse = personalizerLibrary.GetRankResults(currentContext);

                if (personalizerResponse.RewardActionId == simulationResponse)
                {
                    reward = 1f;
                    rewardCounter++;                    
                }

                Console.WriteLine($"For Context {userSimulator.GetKey((Dictionary<string,string>)currentContext[0])}: Personalizer suggested {personalizerResponse.RewardActionId}, simulation chose {simulationResponse} - reward: {reward} - count {rewardCounter}");
                personalizerLibrary.SubmitReward(personalizerResponse.EventId, reward);

                
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }

            return reward;
        }

        public IList<object> GetSimulatedContext()
        {
            IList<object> currentContext = new List<object>() {
                   new Dictionary<string, string>()
                   {
                       { "occassion",   occassionContextValues[rand.Next(3)] },
                       { "variety",   varietyContextValues[rand.Next(4)] },
                   }
            };

            return currentContext;

        }
    }

    public class FoodContext
    {
        public string occassion;
        public string variety;
    }
}