diff --git a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.Core/Domain/BaseEntity.cs b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.Core/Domain/BaseEntity.cs
index aa331d1a..ea1d2d45 100644
--- a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.Core/Domain/BaseEntity.cs
+++ b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.Core/Domain/BaseEntity.cs
@@ -1,9 +1,13 @@
 using System;
+using MongoDB.Bson;
+using MongoDB.Bson.Serialization.Attributes;
 
 namespace Pcf.GivingToCustomer.Core.Domain
 {
     public class BaseEntity
     {
+        [BsonId]
+        [BsonRepresentation(BsonType.String)]
         public Guid Id { get; set; }
     }
 }
\ No newline at end of file
diff --git a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.Core/Domain/Customer.cs b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.Core/Domain/Customer.cs
index b41cb642..4f980bd7 100644
--- a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.Core/Domain/Customer.cs
+++ b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.Core/Domain/Customer.cs
@@ -1,4 +1,6 @@
-using System.Collections.Generic;
+using MongoDB.Bson.Serialization.Attributes;
+using System;
+using System.Collections.Generic;
 
 namespace Pcf.GivingToCustomer.Core.Domain
 {
@@ -7,13 +9,19 @@ public class Customer
     {
         public string FirstName { get; set; }
         public string LastName { get; set; }
-
         public string FullName => $"{FirstName} {LastName}";
-
         public string Email { get; set; }
 
+        // связь многие-ко-многим как лист ID
+        [BsonRepresentation(MongoDB.Bson.BsonType.String)]
+        public List<Guid> PreferenceIds { get; set; } = new List<Guid>();
+
+        [BsonRepresentation(MongoDB.Bson.BsonType.String)]
+        public List<Guid> PromoCodeIds { get; set; } = new List<Guid>();
+
+        [BsonIgnore]
         public virtual ICollection<CustomerPreference> Preferences { get; set; }
-        
+        [BsonIgnore]
         public virtual ICollection<PromoCodeCustomer> PromoCodes { get; set; }
     }
 }
\ No newline at end of file
diff --git a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.Core/Pcf.GivingToCustomer.Core.csproj b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.Core/Pcf.GivingToCustomer.Core.csproj
index d36f76db..714f42fa 100644
--- a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.Core/Pcf.GivingToCustomer.Core.csproj
+++ b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.Core/Pcf.GivingToCustomer.Core.csproj
@@ -4,4 +4,8 @@
         <TargetFramework>net8.0</TargetFramework>
     </PropertyGroup>
 
+    <ItemGroup>
+      <PackageReference Include="MongoDB.Driver" Version="3.4.2" />
+    </ItemGroup>
+
 </Project>
diff --git a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/Data/MongoDbInitializer.cs b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/Data/MongoDbInitializer.cs
new file mode 100644
index 00000000..6fb75519
--- /dev/null
+++ b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/Data/MongoDbInitializer.cs
@@ -0,0 +1,40 @@
+using MongoDB.Driver;
+using Pcf.GivingToCustomer.Core.Domain;
+using System.Linq;
+
+namespace Pcf.GivingToCustomer.DataAccess.Data
+{
+    public class MongoDbInitializer : IDbInitializer
+    {
+        private readonly IMongoDBContext _context;
+
+        public MongoDbInitializer(IMongoDBContext context)
+        {
+            _context = context;
+        }
+
+        public void InitializeDb()
+        {
+            // чистим БД
+            _context.Database.DropCollection(nameof(Preference) + "s");
+            _context.Database.DropCollection(nameof(Customer) + "s");
+
+            // Добавляем Preferences
+            var preferencesCollection = _context.GetCollection<Preference>();
+            preferencesCollection.InsertMany(FakeDataFactory.Preferences);
+
+            // Добавляем Customers с вложенными Preferences
+            var customersCollection = _context.GetCollection<Customer>();
+            var customers = FakeDataFactory.Customers.Select(c =>
+            {
+                // В Mongo мы обычно не храним навигационные свойства,
+                // поэтому маппим Preferences -> список PreferenceIds
+                c.PreferenceIds = c.Preferences?.Select(p => p.PreferenceId).ToList();
+                c.Preferences = null; // навигационные свойства игнорируем
+                return c;
+            }).ToList();
+
+            customersCollection.InsertMany(customers);
+        }
+    }
+}
\ No newline at end of file
diff --git a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/IMongoDBContext.cs b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/IMongoDBContext.cs
new file mode 100644
index 00000000..c8f135ea
--- /dev/null
+++ b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/IMongoDBContext.cs
@@ -0,0 +1,10 @@
+using MongoDB.Driver;
+
+namespace Pcf.GivingToCustomer.DataAccess
+{
+    public interface IMongoDBContext
+    {
+        IMongoDatabase Database { get; }
+        IMongoCollection<T> GetCollection<T>(string name = null);
+    }
+}
diff --git a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/MongoDBContext.cs b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/MongoDBContext.cs
new file mode 100644
index 00000000..af5a4676
--- /dev/null
+++ b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/MongoDBContext.cs
@@ -0,0 +1,28 @@
+using Microsoft.Extensions.Options;
+using MongoDB.Driver;
+using Pcf.GivingToCustomer.DataAccess.Settings;
+
+namespace Pcf.GivingToCustomer.DataAccess
+{
+    public class MongoDBContext : IMongoDBContext
+    {
+        private readonly IMongoDatabase _database;
+
+        public MongoDBContext(IOptions<MongoSettings> settings)
+        {
+            //клиент (один на приложение: singleton). Нужен для связи с сервером и работы с БД.
+            var client = new MongoClient(settings.Value.ConnectionString);
+            //по имени получаем БД
+            _database = client.GetDatabase(settings.Value.DatabaseName);
+        }
+
+        //короткая запись для свойства с геттером
+        public IMongoDatabase Database => _database;
+
+        public IMongoCollection<T> GetCollection<T>(string name = null)
+        {
+            var collectionName = name ?? typeof(T).Name + "s";
+            return _database.GetCollection<T>(collectionName);
+        }
+    }
+}
diff --git a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/Pcf.GivingToCustomer.DataAccess.csproj b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/Pcf.GivingToCustomer.DataAccess.csproj
index 133057bc..137ff1d1 100644
--- a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/Pcf.GivingToCustomer.DataAccess.csproj
+++ b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/Pcf.GivingToCustomer.DataAccess.csproj
@@ -6,6 +6,7 @@
 
     <ItemGroup>
       <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.7" />
+      <PackageReference Include="MongoDB.Driver" Version="3.4.2" />
     </ItemGroup>
 
     <ItemGroup>
diff --git a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/Repositories/MongoRepository.cs b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/Repositories/MongoRepository.cs
new file mode 100644
index 00000000..3e2dfc1d
--- /dev/null
+++ b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/Repositories/MongoRepository.cs
@@ -0,0 +1,64 @@
+using MongoDB.Driver;
+using Pcf.GivingToCustomer.Core.Abstractions.Repositories;
+using Pcf.GivingToCustomer.Core.Domain;
+using Pcf.GivingToCustomer.DataAccess;
+using System;
+using System.Collections.Generic;
+using System.Linq.Expressions;
+using System.Threading.Tasks;
+
+public class MongoRepository<T> : IRepository<T> where T : BaseEntity
+{
+    private readonly IMongoCollection<T> _collection;
+
+    public MongoRepository(IMongoDBContext context)
+    {
+        _collection = context.GetCollection<T>();
+    }
+
+    public async Task<IEnumerable<T>> GetAllAsync()
+    {
+        return await _collection.Find(_ => true).ToListAsync();
+    }
+
+    public async Task<T> GetByIdAsync(Guid id)
+    {
+        var filter = Builders<T>.Filter.Eq(e => e.Id, id);
+        return await _collection.Find(filter).FirstOrDefaultAsync();
+    }
+
+    public async Task<IEnumerable<T>> GetRangeByIdsAsync(List<Guid> ids)
+    {
+        var filter = Builders<T>.Filter.In(e => e.Id, ids);
+        return await _collection.Find(filter).ToListAsync();
+    }
+
+    public async Task<T> GetFirstWhere(Expression<Func<T, bool>> predicate)
+    {
+        var filter = Builders<T>.Filter.Where(predicate);
+        return await _collection.Find(filter).FirstOrDefaultAsync();
+    }
+
+    public async Task<IEnumerable<T>> GetWhere(Expression<Func<T, bool>> predicate)
+    {
+        var filter = Builders<T>.Filter.Where(predicate);
+        return await _collection.Find(filter).ToListAsync();
+    }
+
+    public async Task AddAsync(T entity)
+    {
+        await _collection.InsertOneAsync(entity);
+    }
+
+    public async Task UpdateAsync(T entity)
+    {
+        var filter = Builders<T>.Filter.Eq(e => e.Id, entity.Id);
+        await _collection.ReplaceOneAsync(filter, entity);
+    }
+
+    public async Task DeleteAsync(T entity)
+    {
+        var filter = Builders<T>.Filter.Eq(e => e.Id, entity.Id);
+        await _collection.DeleteOneAsync(filter);
+    }
+}
diff --git a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/Settings/MongoSettings.cs b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/Settings/MongoSettings.cs
new file mode 100644
index 00000000..f3409246
--- /dev/null
+++ b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.DataAccess/Settings/MongoSettings.cs
@@ -0,0 +1,8 @@
+namespace Pcf.GivingToCustomer.DataAccess.Settings
+{
+    public class MongoSettings
+    {
+        public string ConnectionString { get; set; }
+        public string DatabaseName { get; set; }
+    }
+}
diff --git a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.IntegrationTests/Pcf.GivingToCustomer.IntegrationTests.csproj b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.IntegrationTests/Pcf.GivingToCustomer.IntegrationTests.csproj
index 94d5ff64..d0f39abe 100644
--- a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.IntegrationTests/Pcf.GivingToCustomer.IntegrationTests.csproj
+++ b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.IntegrationTests/Pcf.GivingToCustomer.IntegrationTests.csproj
@@ -12,6 +12,7 @@
         <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.7" />
         <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.7" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
+        <PackageReference Include="MongoDB.Driver" Version="3.4.2" />
         <PackageReference Include="xunit" Version="2.9.0" />
         <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
           <PrivateAssets>all</PrivateAssets>
diff --git a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.WebHost/Pcf.GivingToCustomer.WebHost.csproj b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.WebHost/Pcf.GivingToCustomer.WebHost.csproj
index 6ead61da..b4e2f6d5 100644
--- a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.WebHost/Pcf.GivingToCustomer.WebHost.csproj
+++ b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.WebHost/Pcf.GivingToCustomer.WebHost.csproj
@@ -17,6 +17,7 @@
       <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.7" />
       <PackageReference Include="Microsoft.EntityFrameworkCore.Proxies" Version="8.0.7" />
       <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.7" />
+      <PackageReference Include="MongoDB.Driver" Version="3.4.2" />
       <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.4" />
       <PackageReference Include="NSwag.AspNetCore" Version="14.1.0" />
     </ItemGroup>
diff --git a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.WebHost/Startup.cs b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.WebHost/Startup.cs
index 601337fc..dd81fe45 100644
--- a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.WebHost/Startup.cs
+++ b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.WebHost/Startup.cs
@@ -1,21 +1,14 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
-using Castle.Core.Configuration;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
-using Microsoft.AspNetCore.Http;
-using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
-using Microsoft.Extensions.Configuration;
 using Pcf.GivingToCustomer.Core.Abstractions.Gateways;
 using Pcf.GivingToCustomer.Core.Abstractions.Repositories;
 using Pcf.GivingToCustomer.DataAccess;
 using Pcf.GivingToCustomer.DataAccess.Data;
-using Pcf.GivingToCustomer.DataAccess.Repositories;
+using Pcf.GivingToCustomer.DataAccess.Settings;
 using Pcf.GivingToCustomer.Integration;
+
 using IConfiguration = Microsoft.Extensions.Configuration.IConfiguration;
 
 namespace Pcf.GivingToCustomer.WebHost
@@ -35,16 +28,26 @@ public void ConfigureServices(IServiceCollection services)
         {
             services.AddControllers().AddMvcOptions(x=> 
                 x.SuppressAsyncSuffixInActionNames = false);
-            services.AddScoped(typeof(IRepository<>), typeof(EfRepository<>));
+
+            // ���������� MongoDB
+            services.Configure<MongoSettings>(Configuration.GetSection("MongoSettings"));
+            // ������������ MongoContext
+            services.AddSingleton<IMongoDBContext, MongoDBContext>();
+            // ������������ �����������
+            services.AddScoped(typeof(IRepository<>), typeof(MongoRepository<>));
+            // ������� �������� �� FakeRepository
+            services.AddScoped<IDbInitializer, MongoDbInitializer>();
+
+            //services.AddScoped(typeof(IRepository<>), typeof(EfRepository<>));
             services.AddScoped<INotificationGateway, NotificationGateway>();
-            services.AddScoped<IDbInitializer, EfDbInitializer>();
-            services.AddDbContext<DataContext>(x =>
+            //services.AddScoped<IDbInitializer, EfDbInitializer>();
+            /*services.AddDbContext<DataContext>(x =>
             {
                 //x.UseSqlite("Filename=PromocodeFactoryGivingToCustomerDb.sqlite");
                 x.UseNpgsql(Configuration.GetConnectionString("PromocodeFactoryGivingToCustomerDb"));
                 x.UseSnakeCaseNamingConvention();
                 x.UseLazyLoadingProxies();
-            });
+            });*/
 
             services.AddOpenApiDocument(options =>
             {
diff --git a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.WebHost/appsettings.json b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.WebHost/appsettings.json
index cfae3069..683f2362 100644
--- a/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.WebHost/appsettings.json
+++ b/Homeworks/NoSQL/src/Pcf.GivingToCustomer/Pcf.GivingToCustomer.WebHost/appsettings.json
@@ -6,8 +6,12 @@
       "Microsoft.Hosting.Lifetime": "Information"
     }
   },
-  "ConnectionStrings":{
-    "PromocodeFactoryGivingToCustomerDb":"Host=localhost;Database=promocode_factory_givingToCustomer_db;Username=postgres;Password=docker;Port=5435"
+  "ConnectionStrings": {
+    "PromocodeFactoryGivingToCustomerDb": "Host=localhost;Database=promocode_factory_givingToCustomer_db;Username=postgres;Password=docker;Port=5435"
+  },
+  "MongoSettings": {
+    "ConnectionString": "mongodb://admin:otus@localhost:27017",
+    "DatabaseName": "givingToCustomer"
   },
   "AllowedHosts": "*"
 }