diff --git a/ProjectItCompany/ProjectItCompany/Program.cs b/ProjectItCompany/ProjectItCompany/Program.cs
index 7928f54..c66db36 100644
--- a/ProjectItCompany/ProjectItCompany/Program.cs
+++ b/ProjectItCompany/ProjectItCompany/Program.cs
@@ -1,7 +1,11 @@
 using Unity.Lifetime;
 using Unity;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
 using ProjectItCompany.Repositories;
 using ProjectItCompany.Repositories.Implementations;
+using Unity.Microsoft.Logging;
+using Serilog;
 
 namespace ProjectItCompany
 {
@@ -22,13 +26,27 @@ namespace ProjectItCompany
         private static IUnityContainer CreateContainer()
         {
             var container = new UnityContainer();
+
+            container.AddExtension(new LoggingExtension(CreateLoggerFactory()));
+
             container.RegisterType<ICustomerRepository, CustomerRepository>(new TransientLifetimeManager());
             container.RegisterType<IExecutorRepository, ExecutorRepository>(new TransientLifetimeManager());
             container.RegisterType<IProjectRepository, ProjectRepository>(new TransientLifetimeManager());
             container.RegisterType<IWageRepository, WageRepository>(new TransientLifetimeManager());
             container.RegisterType<IContractRepository, ContractRepository>(new TransientLifetimeManager());
+            container.RegisterType<IConnectionString, ConnectionString>();
             return container;
         }
 
+        private static LoggerFactory CreateLoggerFactory()
+        {
+            var loggerFactory = new LoggerFactory();
+            loggerFactory.AddSerilog(new LoggerConfiguration()
+                .ReadFrom.Configuration(new ConfigurationBuilder()
+                .AddJsonFile("appsettings.json")
+                .Build())
+                .CreateLogger());
+            return loggerFactory;
+        }
     }
 }
\ No newline at end of file
diff --git a/ProjectItCompany/ProjectItCompany/ProjectItCompany.csproj b/ProjectItCompany/ProjectItCompany/ProjectItCompany.csproj
index 099f40b..167c0ad 100644
--- a/ProjectItCompany/ProjectItCompany/ProjectItCompany.csproj
+++ b/ProjectItCompany/ProjectItCompany/ProjectItCompany.csproj
@@ -10,7 +10,18 @@
   </PropertyGroup>
 
   <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="Newtonsoft.Json" Version="13.0.3" />
+    <PackageReference Include="Npgsql" Version="9.0.2" />
+    <PackageReference Include="Serilog" Version="4.2.0" />
+    <PackageReference Include="Serilog.Extensions.Logging" Version="9.0.0" />
+    <PackageReference Include="Serilog.Settings.Configuration" Version="9.0.0" />
+    <PackageReference Include="Serilog.Sinks.File" Version="6.0.0" />
     <PackageReference Include="Unity" Version="5.11.10" />
+    <PackageReference Include="Unity.Microsoft.Logging" Version="5.11.1" />
   </ItemGroup>
 
   <ItemGroup>
@@ -28,4 +39,10 @@
     </EmbeddedResource>
   </ItemGroup>
 
+  <ItemGroup>
+    <None Update="appsettings.json">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
 </Project>
\ No newline at end of file
diff --git a/ProjectItCompany/ProjectItCompany/Repositories/IConnectionString.cs b/ProjectItCompany/ProjectItCompany/Repositories/IConnectionString.cs
new file mode 100644
index 0000000..f539c7f
--- /dev/null
+++ b/ProjectItCompany/ProjectItCompany/Repositories/IConnectionString.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectItCompany.Repositories;
+
+public interface IConnectionString
+{
+    string ConnectionString { get; }
+}
diff --git a/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ConnectionString.cs b/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ConnectionString.cs
new file mode 100644
index 0000000..a348f07
--- /dev/null
+++ b/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ConnectionString.cs
@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectItCompany.Repositories.Implementations;
+public class ConnectionString : IConnectionString
+{
+    string IConnectionString.ConnectionString => "Server=localhost, 5432;Database=furnitureotp;Uid=postgres;Pwd=postgres;";
+}
diff --git a/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ContractRepository.cs b/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ContractRepository.cs
index 85f0f64..9fbed75 100644
--- a/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ContractRepository.cs
+++ b/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ContractRepository.cs
@@ -1,26 +1,95 @@
-using ProjectItCompany.Entities;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using ProjectItCompany.Entities;
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.Contracts;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using Unity;
 
 namespace ProjectItCompany.Repositories.Implementations;
 
-internal class ContractRepository : IContractRepository
+public class ContractRepository : IContractRepository
 {
-    public void CreateContract(Contract contract)
-    {
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<ContractRepository> _logger;
 
+    public ContractRepository(IConnectionString connectionString, ILogger<ContractRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
+
+    public void CreateContract(Entities.Contract contract)
+    {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(contract));
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            connection.Open();
+            using var transaction = connection.BeginTransaction();
+            var queryInsert = @"INSERT INTO Contracts (Date, ProjectId)
+                                VALUES (@Date, @ProjectId);
+                                SELECT MAX(Id) FROM Contracts";
+            var feedReplenishmentId = connection.QueryFirst<int>(queryInsert, contract, transaction);
+            var querySubInsert = @"INSERT INTO CustomerOnProject (ContractId, CostomerId, Description)
+                                    VALUES (@ContractId,@CostomerId, @Description)";
+            foreach (var elem in contract.CustomerId)
+            {
+                connection.Execute(querySubInsert, new
+                {
+                    elem.ContractId,
+                    elem.Description,
+                    elem.CustomerId
+                }, transaction);
+            }
+            transaction.Commit();
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
     }
 
     public void DeleteContract(int id)
     {
-        
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryDelete = @"DELETE FROM Contracts
+                                WHERE ID=@id";
+            connection.Execute(queryDelete, new { id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
     }
 
-    public IEnumerable<Contract> ReadContract(DateTime? dateForm = null, DateTime? dateTo = null, decimal? typeProject = null, int? customerId = null)
+    public IEnumerable<Entities.Contract> ReadContract(DateTime? dateForm = null, DateTime? dateTo = null, decimal? typeProject = null, int? customerId = null)
     {
-        return [];
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = @"SELECT * FROM Contracts";
+            var contracts = connection.Query<Entities.Contract>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}", JsonConvert.SerializeObject(contracts));
+            return contracts;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
     }
 }
diff --git a/ProjectItCompany/ProjectItCompany/Repositories/Implementations/CustomerRepository.cs b/ProjectItCompany/ProjectItCompany/Repositories/Implementations/CustomerRepository.cs
index c7337f2..51cb915 100644
--- a/ProjectItCompany/ProjectItCompany/Repositories/Implementations/CustomerRepository.cs
+++ b/ProjectItCompany/ProjectItCompany/Repositories/Implementations/CustomerRepository.cs
@@ -1,4 +1,8 @@
-using ProjectItCompany.Entities;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using ProjectItCompany.Entities;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -7,30 +11,111 @@ using System.Threading.Tasks;
 
 namespace ProjectItCompany.Repositories.Implementations;
 
-internal class CustomerRepository : ICustomerRepository
+public class CustomerRepository : ICustomerRepository
 {
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<CustomerRepository> _logger;
+
+    public CustomerRepository(IConnectionString connectionString, ILogger<CustomerRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
     public void CreateCustomer(Customer customer)
     {
-
-    }
-
-    public void DeleteCustomer(int id)
-    {
-
-    }
-
-    public Customer ReadCustomerById(int id)
-    {
-        return Customer.CreateEntity(0, string.Empty, string.Empty);
-    }
-
-    public IEnumerable<Customer> ReadCustomers()
-    {
-        return [];
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(customer));
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryInsert = @"INSERT INTO Customers (NameCustomer, Description) 
+                                VALUES (@NameCustomer, @Description)";
+            connection.Execute(queryInsert, customer);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
     }
 
     public void UpdateCustomer(Customer customer)
     {
-     
+        _logger.LogInformation("Редактирование объекта");
+        _logger.LogDebug("Объект: {json}",
+        JsonConvert.SerializeObject(customer));
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryUpdate = @"UPDATE Customers SET
+                                    NameCustomer=@NameCustomer,
+                                    Description=@Description
+                                    WHERE ID=@id";
+            connection.Execute(queryUpdate, customer);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при редактировании объекта");
+            throw;
+        }
+    }
+
+    public void DeleteCustomer(int id)
+    {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryDelete = @"DELETE FROM Customers WHERE ID=@id";
+            connection.Execute(queryDelete, new { id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
+    }
+
+    public Customer ReadCustomerById(int id)
+    {
+        _logger.LogInformation("Получение объекта по идентификатору");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = @"SELECT * FROM Customers WHERE ID=@id";
+            var customer = connection.QueryFirst<Customer>(querySelect, new
+            {
+                id
+            });
+            _logger.LogDebug("Найденный объект: {json}",
+            JsonConvert.SerializeObject(customer));
+            return customer;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при поиске объекта");
+            throw;
+        }
+    }
+
+    public IEnumerable<Customer> ReadCustomers()
+    {
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM Customers";
+            var customers = connection.Query<Customer>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}",
+            JsonConvert.SerializeObject(customers));
+            return customers;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
     }
 }
diff --git a/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ExecutorRepository.cs b/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ExecutorRepository.cs
index 5c788a6..e2ec0c1 100644
--- a/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ExecutorRepository.cs
+++ b/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ExecutorRepository.cs
@@ -1,4 +1,8 @@
-using ProjectItCompany.Entities;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using ProjectItCompany.Entities;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -7,30 +11,113 @@ using System.Threading.Tasks;
 
 namespace ProjectItCompany.Repositories.Implementations;
 
-internal class ExecutorRepository : IExecutorRepository
+public class ExecutorRepository : IExecutorRepository
 {
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<ExecutorRepository> _logger;
+
+    public ExecutorRepository(IConnectionString connectionString, ILogger<ExecutorRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
     public void CreateExecutor(Executor executor)
     {
-     
-    }
-
-    public void DeleteExecutor(int id)
-    {
-   
-    }
-
-    public Executor ReadExecutorById(int id)
-    {
-        return Executor.CreateEntity(0, string.Empty, DateTime.Today, 1000, Entities.Enums.JobTitles.Developer);
-    }
-
-    public IEnumerable<Executor> ReadExecutors()
-    {
-        return [];
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(executor));
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryInsert = @"INSERT INTO Executors (FullName, DateOfBirth, HourlyRate, JobTitles) 
+                                VALUES (@FullName, @DateOfBirth, @HourlyRate, @JobTitles)";
+            connection.Execute(queryInsert, executor);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
     }
 
     public void UpdateExecutor(Executor executor)
     {
-    
+        _logger.LogInformation("Редактирование объекта");
+        _logger.LogDebug("Объект: {json}",
+        JsonConvert.SerializeObject(executor));
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryUpdate = @"UPDATE Executors SET
+                                    FullName=@FullName,
+                                    DateOfBirth=@DateOfBirth,
+                                    HourlyRate=@HourlyRate,
+                                    JobTitles = @JobTitles
+                                    WHERE ID=@id";
+            connection.Execute(queryUpdate, executor);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при редактировании объекта");
+            throw;
+        }
+    }
+
+    public void DeleteExecutor(int id)
+    {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryDelete = @"DELETE FROM Executors WHERE ID=@id";
+            connection.Execute(queryDelete, new { id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
+    }
+
+    public Executor ReadExecutorById(int id)
+    {
+        _logger.LogInformation("Получение объекта по идентификатору");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = @"SELECT * FROM Executors WHERE ID=@id";
+            var executor = connection.QueryFirst<Executor>(querySelect, new
+            {
+                id
+            });
+            _logger.LogDebug("Найденный объект: {json}",
+            JsonConvert.SerializeObject(executor));
+            return executor;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при поиске объекта");
+            throw;
+        }
+    }
+
+    public IEnumerable<Executor> ReadExecutors()
+    {
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM Executors";
+            var executors = connection.Query<Executor>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}",
+            JsonConvert.SerializeObject(executors));
+            return executors;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
     }
 }
diff --git a/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ProjectRepository.cs b/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ProjectRepository.cs
index f14c481..225e3df 100644
--- a/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ProjectRepository.cs
+++ b/ProjectItCompany/ProjectItCompany/Repositories/Implementations/ProjectRepository.cs
@@ -1,4 +1,8 @@
-using ProjectItCompany.Entities;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using ProjectItCompany.Entities;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -7,30 +11,112 @@ using System.Threading.Tasks;
 
 namespace ProjectItCompany.Repositories.Implementations;
 
-internal class ProjectRepository : IProjectRepository
+public class ProjectRepository : IProjectRepository
 {
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<ProjectRepository> _logger;
+
+    public ProjectRepository(IConnectionString connectionString, ILogger<ProjectRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
     public void CreateProject(Project project)
     {
-        
-    }
-
-    public void DeleteProject(int id)
-    {
-        
-    }
-
-    public Project ReadProjectById(int id)
-    {
-        return Project.CreateEntity(1, string.Empty, 0, Entities.Enums.CompletedStages.Planning);
-    }
-
-    public IEnumerable<Project> ReadProjects()
-    {
-        return [];
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(project));
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryInsert = @"INSERT INTO Projects (NameProject, CustomerId, CompletedStages) 
+                                VALUES (@NameProject, @CustomerId, @CompletedStages)";
+            connection.Execute(queryInsert, project);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
     }
 
     public void UpdateProject(Project project)
     {
-        
+        _logger.LogInformation("Редактирование объекта");
+        _logger.LogDebug("Объект: {json}",
+        JsonConvert.SerializeObject(project));
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryUpdate = @"UPDATE Projects SET
+                                    NameProject=@NameProject,
+                                    CustomerId=@CustomerId,
+                                    CompletedStages=@CompletedStages
+                                    WHERE ID=@id";
+            connection.Execute(queryUpdate, project);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при редактировании объекта");
+            throw;
+        }
+    }
+
+    public void DeleteProject(int id)
+    {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryDelete = @"DELETE FROM Projects WHERE ID=@id";
+            connection.Execute(queryDelete, new { id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
+    }
+
+    public Project ReadProjectById(int id)
+    {
+        _logger.LogInformation("Получение объекта по идентификатору");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = @"SELECT * FROM Projects WHERE ID=@id";
+            var project = connection.QueryFirst<Project>(querySelect, new
+            {
+                id
+            });
+            _logger.LogDebug("Найденный объект: {json}",
+            JsonConvert.SerializeObject(project));
+            return project;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при поиске объекта");
+            throw;
+        }
+    }
+
+    public IEnumerable<Project> ReadProjects()
+    {
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM Projects";
+            var projects = connection.Query<Project>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}",
+            JsonConvert.SerializeObject(projects));
+            return projects;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
     }
 }
diff --git a/ProjectItCompany/ProjectItCompany/Repositories/Implementations/WageRepository.cs b/ProjectItCompany/ProjectItCompany/Repositories/Implementations/WageRepository.cs
index c3576d2..f547322 100644
--- a/ProjectItCompany/ProjectItCompany/Repositories/Implementations/WageRepository.cs
+++ b/ProjectItCompany/ProjectItCompany/Repositories/Implementations/WageRepository.cs
@@ -1,4 +1,8 @@
-using ProjectItCompany.Entities;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using ProjectItCompany.Entities;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -7,15 +11,52 @@ using System.Threading.Tasks;
 
 namespace ProjectItCompany.Repositories.Implementations;
 
-internal class WageRepository : IWageRepository
+public class WageRepository : IWageRepository
 {
-    public void CreateWage(Wage wages)
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<WageRepository> _logger;
+
+    public WageRepository(IConnectionString connectionString, ILogger<WageRepository> logger)
     {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
+    public void CreateWage(Wage wage)
+    {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}",
+        JsonConvert.SerializeObject(wage));
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryInsert = @"INSERT INTO Wages (Month, Year, NumberOfHours, ExecutorID)
+                                VALUES (@Month, @Year, @NumberOfHours, @ExecutorID)";
+            connection.Execute(queryInsert, wage);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
 
     }
 
     public IEnumerable<Wage> ReadWage(int? yearForm = null, int? yearTo = null, int? numberOfHoursFrom = null, int? numberOfHoursTo = null, int? executorId = null)
     {
-        return [];
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM Wages";
+            var wages = connection.Query<Wage>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}",
+            JsonConvert.SerializeObject(wages));
+            return wages;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
     }
 }
\ No newline at end of file
diff --git a/ProjectItCompany/ProjectItCompany/appsettings.json b/ProjectItCompany/ProjectItCompany/appsettings.json
new file mode 100644
index 0000000..b2d4e69
--- /dev/null
+++ b/ProjectItCompany/ProjectItCompany/appsettings.json
@@ -0,0 +1,15 @@
+{
+  "Serilog": {
+    "Using": [ "Serilog.Sinks.File" ],
+    "MinimumLevel": "Debug",
+    "WriteTo": [
+      {
+        "Name": "File",
+        "Args": {
+          "path": "Logs/itcompany_log.txt",
+          "rollingInterval": "Day"
+        }
+      }
+    ]
+  }
+}
\ No newline at end of file