EFB/Mongo/Mongo.cs

using EFB.Models;
using MongoDB.Driver;
using System;
using System.Threading.Tasks;

namespace EFB.MongoData
{
    public class Mongo
    {
        //function that is responsible to getting the user's latest sim position from the MongoDB
        public static async Task<SimPositionModel> GetLatestData(string email)
        {
            //Create mongo client to allow connection to the database
            MongoClient client = new MongoClient(
                Environment.GetEnvironmentVariable("MongoDBConnectionString", EnvironmentVariableTarget.User)
            );
            MongoDatabaseBase database = (MongoDatabaseBase)client.GetDatabase("EFB");
            MongoCollectionBase<SimPositionModel> collection = (MongoCollectionBase<SimPositionModel>)database.GetCollection<SimPositionModel>("Simdata");

            //Create filter to select specifically the records where the Email is the same as what we specified
            FilterDefinition<SimPositionModel> filter = Builders<SimPositionModel>.Filter.Eq(x => x.EMail, email);
            var data = await collection.FindAsync<SimPositionModel>(filter).Result.ToListAsync();
            if (data.Count > 0)
            {//Return the first item in the list (Should only be 1)
                return data[0];
            }//Or return null if not present
            return null;
        }
    }
}