diff --git a/ProjectGSM/Program.cs b/ProjectGSM/Program.cs
index 35a4988..c6cdc22 100644
--- a/ProjectGSM/Program.cs
+++ b/ProjectGSM/Program.cs
@@ -1,8 +1,13 @@
+using System.Data.SqlClient;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
 using ProjectGSM.Forms;
 using ProjectGSM.Repositories;
 using ProjectGSM.Repositories.Implementations;
+using Serilog;
 using Unity;
 using Unity.Lifetime;
+using Unity.Microsoft.Logging;
 
 namespace ProjectGSM
 {
@@ -23,12 +28,29 @@ namespace ProjectGSM
         private static IUnityContainer CreateContainer()
         {
             var container = new UnityContainer();
-            container.RegisterType<ICaseAdvocateRepository, CaseAdvocateRepository>(new TransientLifetimeManager());
+            container.AddExtension(new
+                LoggingExtension(CreateLoggerFactory()));
+            
+            container.RegisterType<IConnectionString,
+                PSQLConnectionString>(new SingletonLifetimeManager());
+            container.RegisterType<IAdvocateRepository, AdvocateRepository>(new TransientLifetimeManager()); 
             container.RegisterType<ICaseRepository, CaseRepository>(new TransientLifetimeManager());
             container.RegisterType<IClientRepository, ClientRepository>(new TransientLifetimeManager());
             container.RegisterType<ICourtRepository, CourtRepository>(new TransientLifetimeManager());
             container.RegisterType<IStatusHistoryRepository, StatusHistoryRepository>(new TransientLifetimeManager());
             return container;
         }
+
+        private static LoggerFactory CreateLoggerFactory()
+        {
+            var loggerFactory = new LoggerFactory();
+            loggerFactory.AddSerilog(new LoggerConfiguration()
+                .ReadFrom.Configuration(new ConfigurationBuilder()
+                    .SetBasePath(Directory.GetCurrentDirectory())
+                    .AddJsonFile("appsettings.json")
+                    .Build())
+                .CreateLogger());
+            return loggerFactory;
+        }
     }
 }
\ No newline at end of file
diff --git a/ProjectGSM/ProjectGSM.csproj b/ProjectGSM/ProjectGSM.csproj
index 461f231..dbf4ddf 100644
--- a/ProjectGSM/ProjectGSM.csproj
+++ b/ProjectGSM/ProjectGSM.csproj
@@ -50,9 +50,7 @@
 
   <ItemGroup>
     <PackageReference Include="Dapper" Version="2.1.35" />
-    <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="9.0.0" />
-    <PackageReference Include="Microsoft.Extensions.Logging" Version="9.0.0" />
     <PackageReference Include="Npgsql" Version="9.0.0" />
     <PackageReference Include="Serilog" Version="4.2.0-dev-02328" />
     <PackageReference Include="Serilog.Extensions.Logging" Version="8.0.1-dev-10410" />
diff --git a/ProjectGSM/Repositories/IConnectionString.cs b/ProjectGSM/Repositories/IConnectionString.cs
new file mode 100644
index 0000000..4965561
--- /dev/null
+++ b/ProjectGSM/Repositories/IConnectionString.cs
@@ -0,0 +1,9 @@
+using System.Data.SqlClient;
+
+namespace ProjectGSM.Repositories
+{
+    public interface IConnectionString
+    {
+        string ConnectionString { get; }
+    }
+}
diff --git a/ProjectGSM/Repositories/Implementations/AdvocateRepository.cs b/ProjectGSM/Repositories/Implementations/AdvocateRepository.cs
index 820f12f..0811e3e 100644
--- a/ProjectGSM/Repositories/Implementations/AdvocateRepository.cs
+++ b/ProjectGSM/Repositories/Implementations/AdvocateRepository.cs
@@ -1,29 +1,133 @@
-using ProjectGSM.Entities;
+using System.Data.SqlClient;
+using System.Text.Json;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Npgsql;
+using ProjectGSM.Entities;
 
 namespace ProjectGSM.Repositories.Implementations;
 
 public class AdvocateRepository : IAdvocateRepository
 {
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<AdvocateRepository> _logger;
+
+    public AdvocateRepository(IConnectionString connectionString,
+        ILogger<AdvocateRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
+
     public IEnumerable<Advocate> ReadAdvocates()
     {
-        return [];
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM advocates";
+            var advocates = connection.Query<Advocate>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}",
+                JsonSerializer.Serialize(advocates));
+            return advocates;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
     }
 
     public Advocate ReadAdvocateById(int id)
     {
-        return Advocate.CreateEntity(0, String.Empty, false, DateTime.UtcNow, 0, 0, 0, String.Empty, String.Empty,
-            String.Empty, Entities.Enums.LicenseType.None);
+        _logger.LogInformation("Получение объекта по идентификатору");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = @"SELECT * FROM advocates WHERE Id=@id";
+            var advocate = connection.QueryFirst<Advocate>(querySelect, new { id });
+            _logger.LogDebug("Найденный объект: {json}",
+                JsonSerializer.Serialize(advocate));
+            return advocate;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при поиске объекта");
+            throw;
+        }
     }
 
     public void CreateAdvocate(Advocate advocate)
     {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}",
+            JsonSerializer.Serialize(advocate));
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var queryInsert = @"
+INSERT INTO advocates (name, sex, dateofbirth, experience, completed_tasks, rating, email, phonenumber, address, licensetype, createdat)
+VALUES (@Name, @Sex, @DateOfBirth, @Experience, @CompletedTasks, @Rating, @Email, @PhoneNumber, @Address, @LicenseType, @CreatedAt)";
+            connection.Execute(queryInsert, advocate);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
     }
 
     public void UpdateAdvocate(Advocate advocate)
     {
+        _logger.LogInformation("Обновление объекта");
+        _logger.LogDebug("Объект: {json}",
+            JsonSerializer.Serialize(advocate));
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var queryUpdate = @"UPDATE advocates
+                            SET id = @Id,
+                                name = @Name,
+                                sex = @Sex,
+                                dateofbirth = @DateOfBirth,
+                                experience = @Experience,
+                                completed_tasks = @CompletedTasks,
+                                rating = @Rating,
+                                email = @Email,
+                                phonenumber = @PhoneNumber,
+                                address = @Address,
+                                licensetype = @LicenseType,
+                                createdat = @CreatedAt
+                            WHERE id = @Id;";
+            connection.Execute(queryUpdate, advocate);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при обновлении объекта");
+            throw;
+        }
     }
 
     public void DeleteAdvocate(int id)
     {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var queryDelete = @"DELETE FROM advocates WHERE id = @Id;";
+            connection.Execute(queryDelete, new { Id = id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
     }
 }
\ No newline at end of file
diff --git a/ProjectGSM/Repositories/Implementations/CaseRepository.cs b/ProjectGSM/Repositories/Implementations/CaseRepository.cs
index af99bfd..757ae74 100644
--- a/ProjectGSM/Repositories/Implementations/CaseRepository.cs
+++ b/ProjectGSM/Repositories/Implementations/CaseRepository.cs
@@ -1,28 +1,112 @@
-using ProjectGSM.Entities;
+using System.Data.SqlClient;
+using System.Text.Json;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Npgsql;
+using ProjectGSM.Entities;
 
 namespace ProjectGSM.Repositories.Implementations;
 
 public class CaseRepository : ICaseRepository
 {
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<CaseRepository> _logger;
+
+    public CaseRepository(IConnectionString connectionString,
+        ILogger<CaseRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
+
     public IEnumerable<Case> ReadCases()
     {
-        return [];
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM cases";
+            var cases = connection.Query<Case>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}",
+                JsonSerializer.Serialize(cases));
+            return cases;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
     }
 
     public Case ReadCaseById(int id)
     {
-        return Case.CreateEntity(0, 0, false, 0, 0, false, 0, 0, String.Empty);
+        _logger.LogInformation("Получение объекта по идентификатору");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = @"SELECT * FROM cases WHERE Id=@id";
+            var caseE = connection.QueryFirst<Case>(querySelect, new { id });
+            _logger.LogDebug("Найденный объект: {json}",
+                JsonSerializer.Serialize(caseE));
+            return caseE;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при поиске объекта");
+            throw;
+        }
     }
 
     public void CreateCase(Case caseEntity)
     {
-    }
-
-    public void UpdateCase(Case caseEntity)
-    {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}",
+            JsonSerializer.Serialize(caseEntity));
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            connection.Open();
+            using var transaction = connection.BeginTransaction();
+            var queryInsert = @"INSERT INTO Cases (typeappeal, Payment, Price, victoryprice, Verdict, courtid, clientid, Description, createdat)
+                VALUES (@TypeAppeal, @Payment, @Price, @VictoryPrice, @Verdict, @CourtId, @ClientId, @Description, @CreatedAt);
+SELECT MAX(Id) FROM cases;";
+            var caseId =
+                connection.QueryFirst<int>(queryInsert, caseEntity, transaction);
+            var querySubInsert = @"
+                INSERT INTO case_advocates (caseid, advocateid, post, createdat)
+                VALUES (@CaseId, @AdvocateId, @Post, @CreatedAt)";
+            foreach (var elem in caseEntity.Advocates)
+            {
+                connection.Execute(querySubInsert, new {
+                    caseId, elem.AdvocateId, elem.Post, elem.CreatedAt }, transaction);
+            }
+            transaction.Commit();
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
     }
 
     public void DeleteCase(int id)
     {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var queryDelete = @"DELETE FROM cases WHERE id = @Id;";
+            connection.Execute(queryDelete, new { Id = id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
     }
 }
\ No newline at end of file
diff --git a/ProjectGSM/Repositories/Implementations/ClientRepository.cs b/ProjectGSM/Repositories/Implementations/ClientRepository.cs
index 9e478e0..0ae59f1 100644
--- a/ProjectGSM/Repositories/Implementations/ClientRepository.cs
+++ b/ProjectGSM/Repositories/Implementations/ClientRepository.cs
@@ -1,21 +1,126 @@
-using ProjectGSM.Entities;
+using System.Data.SqlClient;
+using System.Text.Json;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Npgsql;
+using ProjectGSM.Entities;
 
 namespace ProjectGSM.Repositories.Implementations;
 
 public class ClientRepository : IClientRepository
 {
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<ClientRepository> _logger;
+
+    public ClientRepository(IConnectionString connectionString,
+        ILogger<ClientRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
+
     public IEnumerable<Client> ReadClients()
     {
-        return [];}
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM clients";
+            var clients = connection.Query<Client>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}",
+                JsonSerializer.Serialize(clients));
+            return clients;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
+    }
 
     public Client ReadClientById(int id)
     {
-        return Client.CreateEntity(0, String.Empty, false, DateTime.UtcNow, String.Empty, String.Empty, String.Empty);
+        _logger.LogInformation("Получение объекта по идентификатору");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = @"SELECT * FROM clients WHERE Id=@id";
+            var client = connection.QueryFirst<Client>(querySelect, new { id });
+            _logger.LogDebug("Найденный объект: {json}",
+                JsonSerializer.Serialize(client));
+            return client;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при поиске объекта");
+            throw;
+        }
     }
 
-    public void CreateClient(Client client) { }
+    public void CreateClient(Client client)
+    {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}",
+            JsonSerializer.Serialize(client));
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var queryInsert = @"INSERT INTO clients (name, sex, dateOfBirth, email, phonenumber, address, createdAt)
+                                VALUES (@Name, @Sex, @DateOfBirth, @Email, @PhoneNumber, @Address, @CreatedAt);";
+            connection.Execute(queryInsert, client);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
+    }
 
-    public void UpdateClient(Client client) { }
+    public void UpdateClient(Client client)
+    {
+        _logger.LogInformation("Обновление объекта");
+        _logger.LogDebug("Объект: {json}",
+            JsonSerializer.Serialize(client));
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var queryUpdate = @"UPDATE clients
+                            SET name = @Name,
+                                sex = @Sex,
+                                dateofbirth = @DateOfBirth,
+                                email = @Email,
+                                phonenumber = @PhoneNumber,
+                                address = @Address
+                            WHERE id = @Id;";
+            connection.Execute(queryUpdate, client);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при обновлении объекта");
+            throw;
+        }
+    }
 
-    public void DeleteClient(int id) { }
+    public void DeleteClient(int id)
+    {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var queryDelete = @"DELETE FROM clients WHERE id = @Id;";
+            connection.Execute(queryDelete, new { Id = id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
+    }
 }
\ No newline at end of file
diff --git a/ProjectGSM/Repositories/Implementations/CourtRepository.cs b/ProjectGSM/Repositories/Implementations/CourtRepository.cs
index 4183b02..cdf8284 100644
--- a/ProjectGSM/Repositories/Implementations/CourtRepository.cs
+++ b/ProjectGSM/Repositories/Implementations/CourtRepository.cs
@@ -1,28 +1,122 @@
-using ProjectGSM.Entities;
+using System.Data.SqlClient;
+using System.Text.Json;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Npgsql;
+using ProjectGSM.Entities;
 
 namespace ProjectGSM.Repositories.Implementations;
 
 public class CourtRepository : ICourtRepository
 {
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<CourtRepository> _logger;
+    
+    public CourtRepository(IConnectionString connectionString,
+        ILogger<CourtRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
+
     public IEnumerable<Court> ReadCourts()
     {
-        return [];
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM courts";
+            var courts = connection.Query<Court>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}",
+                JsonSerializer.Serialize(courts));
+            return courts;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
     }
 
     public Court ReadCourtById(int id)
     {
-        return Court.CreateEntity(0, String.Empty, String.Empty);
+        _logger.LogInformation("Получение объекта по идентификатору");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = @"SELECT * FROM courts WHERE Id = @Id";
+            var court = connection.QueryFirst<Court>(querySelect, new { id });
+            _logger.LogDebug("Полученный объект: {json}",
+                JsonSerializer.Serialize(court));
+            return court;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объекта");
+            throw;
+        }
     }
 
     public void CreateCourt(Court court)
     {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}",
+            JsonSerializer.Serialize(court));
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var queryInsert = @"INSERT INTO courts (name, address, createdat)
+                                VALUES (@Name, @Address, @CreatedAt);";
+            connection.Execute(queryInsert, court);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
     }
 
     public void UpdateCourt(Court court)
     {
+        _logger.LogInformation("Обновление объекта");
+        _logger.LogDebug("Объект: {json}",
+            JsonSerializer.Serialize(court));
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var queryUpdate = @"UPDATE courts
+                            SET name = @Name,
+                                address = @Address
+                            WHERE id = @Id;";
+            connection.Execute(queryUpdate, court);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при обновлении объекта");
+            throw;
+        }
     }
 
     public void DeleteCourt(int id)
     {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var queryDelete = @"DELETE FROM courts WHERE id = @Id;";
+            connection.Execute(queryDelete, new { Id = id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
     }
 }
\ No newline at end of file
diff --git a/ProjectGSM/Repositories/Implementations/PSQLConnectionString.cs b/ProjectGSM/Repositories/Implementations/PSQLConnectionString.cs
new file mode 100644
index 0000000..f14a74b
--- /dev/null
+++ b/ProjectGSM/Repositories/Implementations/PSQLConnectionString.cs
@@ -0,0 +1,9 @@
+namespace ProjectGSM.Repositories.Implementations;
+
+public class PSQLConnectionString : IConnectionString
+{
+    private readonly string _connectionString =
+        "User Id=postgres; Password=postgres; Host=localhost; Port=5432; Database=egovdb;";
+
+    public string ConnectionString => _connectionString;
+}
\ No newline at end of file
diff --git a/ProjectGSM/Repositories/Implementations/StatusHistoryRepository.cs b/ProjectGSM/Repositories/Implementations/StatusHistoryRepository.cs
index 6401d8e..c5fb035 100644
--- a/ProjectGSM/Repositories/Implementations/StatusHistoryRepository.cs
+++ b/ProjectGSM/Repositories/Implementations/StatusHistoryRepository.cs
@@ -1,20 +1,82 @@
-using ProjectGSM.Entities;
+using System.Data.SqlClient;
+using System.Text.Json;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Npgsql;
+using ProjectGSM.Entities;
 
 namespace ProjectGSM.Repositories.Implementations;
 
 public class StatusHistoryRepository : IStatusHistoryRepository
 {
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<StatusHistoryRepository> _logger;
+    public StatusHistoryRepository(IConnectionString connectionString,
+        ILogger<StatusHistoryRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
     public IEnumerable<StatusHistory> ReadStatusHistories(DateTime? dateForm = null, DateTime? dateTo = null,
         int? caseId = null, int? statusId = null)
     {
-        return [];
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM status_histories";
+            var statusHistories =
+                connection.Query<StatusHistory>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}",
+                JsonSerializer.Serialize(statusHistories));
+            return statusHistories;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
+
     }
 
     public void CreateStatusHistory(StatusHistory statusHistory)
     {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}",
+            JsonSerializer.Serialize(statusHistory));
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var queryInsert = @"
+                                INSERT INTO status_histories (caseid, status, price, createdat)
+                                VALUES (@CaseId, @Status, @Price, @CreatedAt)";
+            connection.Execute(queryInsert, statusHistory);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
+
     }
 
     public void DeleteStatusHistory(int statusId, int caseId)
     {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Идентификаторы: {statusId}, {caseId}", statusId, caseId);
+        try
+        {
+            using var connection = new
+                NpgsqlConnection(_connectionString.ConnectionString);
+            var queryDelete = @"DELETE FROM status_histories WHERE status = @Status AND caseid = @CaseId";
+            connection.Execute(queryDelete, new { StatusId = statusId, CaseId = caseId });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
     }
 }
\ No newline at end of file
diff --git a/ProjectGSM/appsettings.json b/ProjectGSM/appsettings.json
new file mode 100644
index 0000000..82b6e34
--- /dev/null
+++ b/ProjectGSM/appsettings.json
@@ -0,0 +1,15 @@
+{
+  "Serilog": {
+    "Using": [ "Serilog.Sinks.File" ],
+    "MinimumLevel": "Debug",
+    "WriteTo": [
+      {
+        "Name": "File",
+        "Args": {
+          "path": "Logs/advocates_log.txt",
+          "rollingInterval": "Day"
+        }
+      }
+    ]
+  }
+}
\ No newline at end of file