Merge branch 'main' into dozorova_alena_lab_3

Reviewed-on: Alexey/DAS_2024_1#29

.idea/.gitignore

@@ -0,0 +1,6 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+/DAS_2024_1.iml
+/modules.xml
+/vcs.xml

borschevskaya_anna_lab_2/.gitignore

@@ -0,0 +1,38 @@
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

borschevskaya_anna_lab_2/README.md

@@ -0,0 +1,43 @@
+# Отчет. Лабораторная работа 2
+
+В рамках лабораторной работы №2 были написаны два сервиса, работающих с текстовыми файлами.
+Для первого сервиса был выбран вариант задания №5:
+```
+Ищет в каталоге /var/data файл с самым коротким названием и перекладывает его в /var/result/data.txt.
+```
+А для второго - №2:
+```
+Ищет наименьшее число из файла /var/data/data.txt и сохраняет его третью степень в /var/result/result.txt.
+```
+## Описание 
+Сначала сервис first перемещает данные из файла с самым коротким названием, находящегося в указанной примонтированной директории, в выходную папку. 
+Доступ к выходной папке имеет второй сервис, который выводит наименьшее число из помещенного первым сервисом файла 
+в третьей степени в выходной файл.
+Выходной файл расположен в примонтированной директории и доступен на машине, где запускаются сервисы.
+
+В Dockerfile используется многоэтапная сборка с использованием нескольких базовых образов на каждом этапе. 
+Описание значения каждой строки есть в Dockerfile в сервисе first.
+
+В файле docker-compose.yml приведено описание новых строк, связанных с подключением примонтированных томов.
+Стоит отметить, что для "общения" сервисов используется общий том common, который монтируется в контейнер по пути /var/result. Это позволяет сохранять результаты 
+работы первого сервиса для использования вторым сервисом.
+## Как запустить
+Для того, чтобы запустить сервисы, необходимо выполнить следующие действия:
+1. Установить и запустить Docker Engine или Docker Desktop
+2. Через консоль перейти в папку, в которой расположен файл docker-compose.yml
+3. Выполнить команду:
+```
+docker compose up --build
+```
+В случае успешного запуска всех контейнеров в консоли будет выведено следующее сообщение:
+```
+ ✔ Network borschevskaya_anna_lab_2_default     Created                                                                                                                                                       0.1s
+ ✔ Container borschevskaya_anna_lab_2-first-1   Created                                                                                                                                                       0.1s
+ ✔ Container borschevskaya_anna_lab_2-second-1  Created                                                                                                                                                       0.1s
+Attaching to borschevskaya_anna_lab_2-first-1, borschevskaya_anna_lab_2-second-1
+```
+Далее, в консоль каждого сервиса будут выведены сообщения о том, как прошла обработка файлов.
+В случае отсутствия заданных значений переменных окружения INPUT_PATH и OUTPUT_PATH и 
+в иных исключительных ситуация будет выведена информация об этом.
+## Видео-отчет
+Работоспособность лабораторной работы можно оценить в следующем [видео](https://disk.yandex.ru/i/LFxdyRUFQDwXEQ).

borschevskaya_anna_lab_2/docker-compose.yml

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+services:
+  first:
+    build: ./first # директория, в которой нужно искать Dockerfile для сборки первого сервиса
+    environment:
+      INPUT_PATH: /var/data/ # директория с входными данными для обработки файлов
+      OUTPUT_PATH: /var/result/ # директория с выходными данными обработки
+    volumes:
+      - ./volumes/input:/var/data # монтируется локальная папка с входными данными в папку внутри контейнера
+      - common:/var/result # монтируется общий для двух сервисов том, в который first сложит результаты обработки по варианту
+  second:
+    build: ./second # директория, в которой нужно искать Dockerfile для сборки второго сервиса
+    depends_on: # сервис second зависит от сервиса first и будет запущен после него
+      - first
+    environment:
+      INPUT_PATH: /var/result/
+      OUTPUT_PATH: /var/data/
+    volumes:
+      - ./volumes/output:/var/data
+      - common:/var/result # монтируется общий для двух сервисов том, из которого second получит результаты обработки first сервиса и выполнит свою логику
+
+volumes:
+  common:

borschevskaya_anna_lab_2/first/Dockerfile

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+# Используем образ Maven для сборки
+FROM maven:3.8-eclipse-temurin-21-alpine AS build
+
+# Устанавливаем рабочую директорию
+WORKDIR /app
+
+# Копируем только pom.xml и загружаем зависимости
+# Так зависимости закэшируются в Docker при изменении кода закэшированные слои с зависимостями будут подгружаться быстрее
+COPY pom.xml .
+RUN mvn dependency:go-offline
+
+# Копируем остальные исходные файлы
+COPY src ./src
+
+# Собираем весь проект
+RUN mvn clean package -DskipTests
+
+# Используем официальный образ JDK для запуска собранного jar-файла
+FROM eclipse-temurin:21-jdk-alpine
+
+# Копируем jar-файл из предыдущего этапа
+COPY --from=build /app/target/*.jar /app.jar
+
+# Указываем команду для запуска приложения
+CMD ["java", "-jar", "app.jar"]

borschevskaya_anna_lab_2/first/pom.xml

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.first</groupId>
+    <artifactId>first</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <!-- Build an executable JAR -->
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <version>3.1.0</version>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <addClasspath>true</addClasspath>
+                            <classpathPrefix>lib/</classpathPrefix>
+                            <mainClass>ru.first.Main</mainClass>
+                        </manifest>
+                    </archive>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+    
+</project>

borschevskaya_anna_lab_2/first/src/main/java/ru/first/Main.java

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+package ru.first;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Arrays;
+import java.util.Comparator;
+
+import static java.nio.file.StandardCopyOption.REPLACE_EXISTING;
+import static java.util.Objects.isNull;
+
+public class Main {
+
+    public static final String INPUT_PATH = System.getenv("INPUT_PATH");
+    public static final String OUTPUT_PATH = System.getenv("OUTPUT_PATH");
+    public static final String RESULT_FILE_NAME = "data.txt";
+
+    public static void main(String[] args) throws IOException {
+        if (isNull(INPUT_PATH) || INPUT_PATH.isEmpty() || isNull(OUTPUT_PATH) || OUTPUT_PATH.isEmpty()) {
+            System.out.printf("Отсутствуют переменные окружения INPUT_PATH = '%s' или OUTPUT_PATH = '%s'%n",
+                    INPUT_PATH, OUTPUT_PATH);
+            return;
+        }
+        var inputPathDir = Path.of(INPUT_PATH);
+        if (!Files.exists(inputPathDir)) {
+            Files.createDirectory(inputPathDir);
+        }
+        var inputDirectory = new File(INPUT_PATH);
+        var allDirFiles = inputDirectory.listFiles();
+        if (isNull(allDirFiles) || allDirFiles.length == 0) {
+            System.out.println("Директория пуста");
+            return;
+        }
+        var dirFiles = Arrays.stream(allDirFiles).filter(File::isFile).toList();
+        if (dirFiles.isEmpty()) {
+            System.out.println("В указанной директории нет подходящих для обработки файлов");
+            return;
+        }
+
+        var shortestName = dirFiles.stream().min(Comparator.comparing(file -> file.getName().length())).get();
+
+        var outputPathDir = Path.of(OUTPUT_PATH);
+        if (!Files.exists(outputPathDir)) {
+            Files.createDirectory(outputPathDir);
+        }
+        var resultFilePath = Path.of(OUTPUT_PATH + File.separator + RESULT_FILE_NAME);
+        Files.move(Path.of(INPUT_PATH + File.separator + shortestName.getName()), resultFilePath, REPLACE_EXISTING);
+    }
+}

borschevskaya_anna_lab_2/second/Dockerfile

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+FROM maven:3.8-eclipse-temurin-21-alpine AS build
+
+WORKDIR /app
+
+COPY pom.xml .
+RUN mvn dependency:go-offline
+
+COPY src ./src
+
+RUN mvn clean package -DskipTests
+
+FROM eclipse-temurin:21-jdk-alpine
+
+COPY --from=build /app/target/*.jar /app.jar
+
+CMD ["java", "-jar", "app.jar"]

borschevskaya_anna_lab_2/second/pom.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.second</groupId>
+    <artifactId>second</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <version>3.1.0</version>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <addClasspath>true</addClasspath>
+                            <classpathPrefix>lib/</classpathPrefix>
+                            <mainClass>ru.second.Main</mainClass>
+                        </manifest>
+                    </archive>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

borschevskaya_anna_lab_2/second/src/main/java/ru/second/Main.java

@@ -0,0 +1,51 @@
+package ru.second;
+
+import java.io.File;
+import java.io.FileWriter;
+import java.nio.file.Files;
+
+import static java.util.Objects.isNull;
+
+public class Main {
+
+    public static final String INPUT_PATH = System.getenv("INPUT_PATH");
+    public static final String INPUT_FILE_NAME = "data.txt";
+
+    public static final String OUTPUT_PATH = System.getenv("OUTPUT_PATH");
+    public static final String RESULT_FILE_NAME = "result.txt";
+
+    public static void main(String[] args) {
+        if (isNull(INPUT_PATH) || INPUT_PATH.isEmpty() || isNull(OUTPUT_PATH) || OUTPUT_PATH.isEmpty()) {
+            System.out.printf("Отсутствуют переменные окружения INPUT_PATH = '%s' или OUTPUT_PATH = '%s'%n",
+                    INPUT_PATH, OUTPUT_PATH);
+            return;
+        }
+
+        var inputFile = new File(INPUT_PATH + File.separator + INPUT_FILE_NAME);
+        if (!inputFile.exists()) {
+            System.out.println("Входной файл не существует");
+            return;
+        }
+
+        try (var stream = Files.lines(inputFile.toPath());
+             var writer = new FileWriter(OUTPUT_PATH + File.separator + RESULT_FILE_NAME);
+        ) {
+            var min = stream.map(Main::parseInt).reduce(Integer::min);
+            if (min.isEmpty()) {
+                System.out.println("Не найдено минимальное значение среди строк файла");
+                return;
+            }
+            var minValue = Math.pow(min.get(), 3);
+            System.out.printf("Get min value = '%d'%n", min.get());
+            writer.append(Double.toString(minValue));
+            System.out.printf("To file %s was written value %f%n", RESULT_FILE_NAME, minValue);
+        } catch (Exception ex) {
+            System.out.println(ex.getMessage());
+        }
+    }
+
+    private static Integer parseInt(String line) {
+        line = line.replace("\\n", "");
+        return Integer.parseInt(line);
+    }
+}

dolgov_dmitriy_lab_1/.gitignore

@@ -0,0 +1,4 @@
+data/
+log/
+wordpress/
+custom/

dolgov_dmitriy_lab_1/README.md

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+# Лабораторная работа №1
+
+## Выполнил: Долгов Дмитрий, группа ПИбд-42
+
+### Были развёрнуты следующие сервисы:
+
+* mediawiki (движок вики)
+* wordpress (популярная система управления контентом)
+* gitea (сервис для хранения репозиториев git)
+* mariaDB
+### Были использованы следующие технологии:
+
+* git
+* docker
+* docker-compose
+
+
+### Для запуска лабораторной работы необходимо ввести в консоль следующую команду:
+```
+docker compose up -d
+```
+
+## Результат запуска:
+```
+[+] Running 4/4
+ ✔ Container dolgov_dmitriy_lab_1-wordpress-1  Running                                                                                                                                                                    0.0s 
+ ✔ Container dolgov_dmitriy_lab_1-database-1   Running                                                                                                                                                                    0.0s 
+ ✔ Container dolgov_dmitriy_lab_1-mediawiki-1  Running                                                                                                                                                                    0.0s 
+ ✔ Container gitea                             Running      
+```
+
+## Видео с результатом запуска: 
+
+Видео можно посмотреть по данной [ссылке](https://drive.google.com/file/d/1hC6HhNvYBRuYVClobXyDMReA4ngwxhwc/view?usp=drive_link).

dolgov_dmitriy_lab_1/docker-compose.yml

@@ -0,0 +1,73 @@
+# Сервисы по заданию
+services:
+  # Сервис MediaWiki
+  mediawiki:
+    # Образ MediaWiki
+    image: mediawiki
+    # Автоматический перезапуск при сбое
+    restart: always
+    # проброс порта 80 из контейнера на порт 8080 хоста
+    ports:
+      - "8080:80"
+    # связь с сервисом database
+    links:
+      - database
+    # монтирование volume для хранения данных
+    volumes:
+      - images:/var/www/html/images
+
+    # Сервис WordPress
+  wordpress:
+    # Образ WordPress
+    image: wordpress:latest
+    # Автоматический перезапуск при сбое
+    ports:
+      - "8082:80"
+    restart: always
+    volumes:
+      - ./wordpress:/var/www/html
+
+  # Сервис Gitea
+  server:
+    image: gitea/gitea:latest
+    container_name: gitea
+    restart: always
+    environment:
+      - USER_UID=1000
+      - USER_GID=1000
+    volumes:
+      - ./data:/data
+      - ./custom:/app/gitea/custom
+      - ./log:/app/gitea/log
+    ports:
+      - "8081:3000"
+    links:
+      - database
+    depends_on:
+      - database
+
+  # Сервис MariaDB
+  database:
+    # Образ MariaDB
+    image: mariadb
+    # Автоматический перезапуск при сбое
+    restart: always
+    # переменные окружения для настройки базы данных
+    environment:
+      # имя базы данных
+      MYSQL_DATABASE: my_wiki
+      # имя пользователя
+      MYSQL_USER: user
+      # пароль пользователя
+      MYSQL_PASSWORD: user
+      # случайный пароль для пользователя root
+      MYSQL_RANDOM_ROOT_PASSWORD: 'yes'
+    # монтирование volume для хранения данных
+    volumes:
+      - db:/var/lib/mysql
+
+# тома для хранения данных
+volumes:
+  images:
+  db:
+

dozorova_alena_lab_3/.gitignore

@@ -0,0 +1,7 @@
+
+/dozorova_alena_lab_3/PostService/.vs
+/dozorova_alena_lab_3/PostService/bin
+/dozorova_alena_lab_3/PostService/obj
+/dozorova_alena_lab_3/WorkerService/.vs
+/dozorova_alena_lab_3/WorkerService/bin
+/dozorova_alena_lab_3/WorkerService/obj

dozorova_alena_lab_3/PostService/.dockerignore

@@ -0,0 +1,30 @@
+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/azds.yaml
+**/bin
+**/charts
+**/docker-compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+LICENSE
+README.md
+!**/.gitignore
+!.git/HEAD
+!.git/config
+!.git/packed-refs
+!.git/refs/heads/**

dozorova_alena_lab_3/PostService/Controllers/HomeController.cs

@@ -0,0 +1,94 @@
+using Microsoft.AspNetCore.Mvc;
+using Newtonsoft.Json;
+
+namespace PostService.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class HomeController : ControllerBase
+    {
+        private readonly ILogger<HomeController> _logger;
+
+        public static List<Post> list = new List<Post>()
+        {
+            new Post()
+            {
+                Id = Guid.NewGuid(),
+                Name = "Default"
+            }
+        };
+        public HomeController(ILogger<HomeController> logger)
+        {
+            _logger = logger;
+        }
+
+        [HttpGet("get")]
+        public IActionResult Get()
+        {
+            return list == null || list.Count == 0 ? NotFound() : Ok(list);
+        }
+
+        [HttpGet("get/{Id}")]
+        public IActionResult Get([FromRoute] Guid Id)
+        {
+            var obj = list.Where(l => l.Id == Id).FirstOrDefault();
+            return obj == null ? NotFound() : Ok(obj);
+        }
+
+        [HttpPost("create")]
+        public IActionResult Create([FromBody] CreateUpdatePost data)
+        {
+            try
+            {
+                var model = new Post()
+                {
+                    Id = Guid.NewGuid(),
+                    Name = data.Name,
+                };
+
+                list.Add(model);
+
+                var modelForResult = new CreateUpdatePost
+                {
+                    Name = model.Name
+                };
+
+                return Ok(modelForResult);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+
+        [HttpPut("update/{Id}")]
+        public IActionResult Update([FromRoute] Guid Id,
+                                    [FromBody] CreateUpdatePost data)
+        {
+            var oldModel = list.Where(l => l.Id == Id).Select(l => list.IndexOf(l)).FirstOrDefault();
+            if (oldModel != null)
+            {
+                list[oldModel].Name = data.Name;
+
+                var modelForResult = new CreateUpdatePost {
+                    Name = data.Name,
+                };
+
+                return Ok(modelForResult);
+            }
+            else return NotFound();
+        }
+
+        [HttpDelete("delete/{Id}")]
+        public IActionResult Delete([FromRoute] Guid Id)
+        {
+            var model = list.Where(l => l.Id != Id).FirstOrDefault();
+
+            if (model != null) {
+                list.Remove(model);
+                return Ok();
+            }
+            else return NotFound();
+        }
+    }
+}

dozorova_alena_lab_3/PostService/Dockerfile

@@ -0,0 +1,24 @@
+#See https://aka.ms/customizecontainer to learn how to customize your debug container and how Visual Studio uses this Dockerfile to build your images for faster debugging.
+
+FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base
+WORKDIR /app
+EXPOSE 80
+EXPOSE 443
+
+FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
+ARG BUILD_CONFIGURATION=Release
+WORKDIR /src
+COPY ["PostService.csproj", "."]
+RUN dotnet restore "./PostService.csproj"
+COPY . .
+WORKDIR "/src/."
+RUN dotnet build "./PostService.csproj" -c $BUILD_CONFIGURATION -o /app/build
+
+FROM build AS publish
+ARG BUILD_CONFIGURATION=Release
+RUN dotnet publish "./PostService.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false
+
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "PostService.dll"]

dozorova_alena_lab_3/PostService/Entities.cs

@@ -0,0 +1,16 @@
+namespace PostService
+{
+    public class Post
+    {
+        public Guid Id { get; set; }
+        public string Name { get; set; }
+    }
+
+    public class PostDTO : Post { }
+
+    public class CreateUpdatePost
+    {
+        public string Name { get; set; }
+    }
+
+}

dozorova_alena_lab_3/PostService/PostService.csproj

@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <UserSecretsId>1a8ae13d-1a3e-4308-955e-4fbf68b758c9</UserSecretsId>
+    <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
+    <DockerfileContext>.</DockerfileContext>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.20.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
+  </ItemGroup>
+
+</Project>

dozorova_alena_lab_3/PostService/PostService.csproj.user

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ActiveDebugProfile>PostService</ActiveDebugProfile>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
+    <DebuggerFlavor>ProjectDebugger</DebuggerFlavor>
+  </PropertyGroup>
+</Project>

dozorova_alena_lab_3/PostService/PostService.sln

@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.10.35004.147
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PostService", "PostService.csproj", "{EB304D56-A05F-41BC-9523-B5FEB658BCEE}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{EB304D56-A05F-41BC-9523-B5FEB658BCEE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{EB304D56-A05F-41BC-9523-B5FEB658BCEE}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EB304D56-A05F-41BC-9523-B5FEB658BCEE}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EB304D56-A05F-41BC-9523-B5FEB658BCEE}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {6625EB51-D403-4C57-A7C2-AA01C90AB472}
+	EndGlobalSection
+EndGlobal

dozorova_alena_lab_3/PostService/Program.cs

@@ -0,0 +1,31 @@
+using Microsoft.OpenApi.Models;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+var app = builder.Build();
+
+app.UseSwagger(c =>
+{
+
+    c.PreSerializeFilters.Add((swaggerDoc, httpReq) =>
+    {
+        swaggerDoc.Servers = new List<OpenApiServer> { new OpenApiServer { Url = $"{httpReq.Scheme}://{httpReq.Host.Value}/postservice" } };
+    });
+});
+app.UseSwaggerUI();
+
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();

dozorova_alena_lab_3/PostService/Properties/launchSettings.json

@@ -0,0 +1,41 @@
+{
+  "profiles": {
+    "PostService": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "https://localhost:7293;http://localhost:5139"
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "Container (Dockerfile)": {
+      "commandName": "Docker",
+      "launchBrowser": true,
+      "launchUrl": "{Scheme}://{ServiceHost}:{ServicePort}/swagger",
+      "environmentVariables": {
+        "ASPNETCORE_URLS": "https://+:443;http://+:80"
+      },
+      "publishAllPorts": true,
+      "useSSL": true
+    }
+  },
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:36974",
+      "sslPort": 44370
+    }
+  }
+}

dozorova_alena_lab_3/PostService/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

dozorova_alena_lab_3/PostService/appsettings.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

dozorova_alena_lab_3/WorkerService/.dockerignore

@@ -0,0 +1,30 @@
+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/azds.yaml
+**/bin
+**/charts
+**/docker-compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+LICENSE
+README.md
+!**/.gitignore
+!.git/HEAD
+!.git/config
+!.git/packed-refs
+!.git/refs/heads/**

dozorova_alena_lab_3/WorkerService/Controllers/HomeController.cs

@@ -0,0 +1,112 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Hosting;
+using RestSharp;
+
+namespace WorkerService.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class HomeController : ControllerBase
+    {
+        private readonly ILogger<HomeController> _logger;
+        private readonly RestClient _restClient;
+
+        public static List<WorkerEntity> list = new List<WorkerEntity>();
+        public HomeController(ILogger<HomeController> logger)
+        {
+            _logger = logger;
+            _restClient = new RestClient("http://nginx/postservice/Home");
+        }
+
+        [HttpGet("get")]
+        public IActionResult Get()
+        {
+            if (list == null || list.Count == 0)
+            {
+                return NotFound();
+            }
+
+            var result = list.Select(l => new GetEntity
+            {
+                Id = l.Id,
+                FIO = l.FIO,
+                PostId = l.PostId,
+            });
+
+            return Ok(result);
+        }
+
+        [HttpGet("get/{Id}")]
+        public IActionResult Get([FromRoute] Guid Id)
+        {
+            var obj = list.Where(l => l.Id == Id);
+            return obj == null ? NotFound() : Ok(obj);
+        }
+
+        [HttpPost("create")]
+        public async Task<IActionResult> CreateAsync([FromBody] CreateUpdateWorker data)
+        {
+            try
+            {
+                var model = new WorkerEntity()
+                {
+                    Id = Guid.NewGuid(),
+                    FIO = data.FIO,
+                    PostId = data.PostId,
+                };
+
+                var restRequest = new RestRequest($"/get/{data.PostId}", Method.Get);
+                var responce = await _restClient.ExecuteAsync<PostEntity>(restRequest);
+
+                if (!responce.IsSuccessful)
+                {
+                    return BadRequest(responce);
+                }
+
+                model.Post = responce.Data;
+
+                list.Add(model);
+
+                return Ok(model);
+            }
+            catch (Exception ex)
+            {
+                return BadRequest(ex.Message);
+            }
+        }
+
+        [HttpPut("update/{Id}")]
+        public IActionResult Update([FromRoute] Guid Id,
+                                    [FromBody] CreateUpdateWorker data)
+        {
+            var oldModel = list.Where(l => l.Id == Id).Select(l => list.IndexOf(l)).FirstOrDefault();
+            if (oldModel != null)
+            {
+                list[oldModel].FIO = data.FIO;
+                list[oldModel].PostId = data.PostId;
+
+                var modelForResult = new CreateUpdateWorker
+                {
+                    FIO = data.FIO,
+                    PostId = data.PostId,
+                };
+
+                return Ok(modelForResult);
+            }
+            else return NotFound();
+        }
+
+        [HttpDelete("delete/{Id}")]
+        public IActionResult Delete([FromRoute] Guid Id)
+        {
+            var model = list.Where(l => l.Id != Id).FirstOrDefault();
+
+            if (model != null)
+            {
+                list.Remove(model);
+                return Ok();
+            }
+            else return NotFound();
+        }
+    }
+}

dozorova_alena_lab_3/WorkerService/Dockerfile

@@ -0,0 +1,24 @@
+#See https://aka.ms/customizecontainer to learn how to customize your debug container and how Visual Studio uses this Dockerfile to build your images for faster debugging.
+
+FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base
+WORKDIR /app
+EXPOSE 80
+EXPOSE 443
+
+FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
+ARG BUILD_CONFIGURATION=Release
+WORKDIR /src
+COPY ["WorkerService.csproj", "."]
+RUN dotnet restore "./WorkerService.csproj"
+COPY . .
+WORKDIR "/src/."
+RUN dotnet build "./WorkerService.csproj" -c $BUILD_CONFIGURATION -o /app/build
+
+FROM build AS publish
+ARG BUILD_CONFIGURATION=Release
+RUN dotnet publish "./WorkerService.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false
+
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "WorkerService.dll"]

dozorova_alena_lab_3/WorkerService/Entities.cs

@@ -0,0 +1,32 @@
+namespace WorkerService
+{
+    public class WorkerEntity
+    {
+        public Guid Id { get; set; }
+        public string FIO { get; set; }
+
+        public Guid PostId { get; set; }
+        public PostEntity Post {  get; set; } 
+    }
+
+    public class PostEntity
+    {
+        public Guid id { get; set; }
+        public string name { get; set; }
+    }
+
+    public class CreateUpdateWorker
+    {
+        public string FIO { get; set; }
+
+        public Guid PostId { get; set; }
+    }
+
+    public class GetEntity
+    {
+        public Guid Id { get; set; }
+        public string FIO { get; set; }
+
+        public Guid PostId { get; set; }
+    }
+}

dozorova_alena_lab_3/WorkerService/Program.cs

@@ -0,0 +1,32 @@
+using Microsoft.OpenApi.Models;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+var app = builder.Build();
+
+app.UseSwagger(c =>
+{        
+
+    c.PreSerializeFilters.Add((swaggerDoc, httpReq) =>
+    {
+        swaggerDoc.Servers = new List<OpenApiServer> { new OpenApiServer { Url = $"{httpReq.Scheme}://{httpReq.Host.Value}/workerservice" } };
+    });
+});
+
+app.UseSwaggerUI();
+
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();

dozorova_alena_lab_3/WorkerService/Properties/launchSettings.json

@@ -0,0 +1,41 @@
+{
+  "profiles": {
+    "WorkerService": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "https://localhost:7144;http://localhost:5220"
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "Container (Dockerfile)": {
+      "commandName": "Docker",
+      "launchBrowser": true,
+      "launchUrl": "{Scheme}://{ServiceHost}:{ServicePort}/swagger",
+      "environmentVariables": {
+        "ASPNETCORE_URLS": "https://+:443;http://+:80"
+      },
+      "publishAllPorts": true,
+      "useSSL": true
+    }
+  },
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:55850",
+      "sslPort": 44303
+    }
+  }
+}

dozorova_alena_lab_3/WorkerService/WorkerService.csproj

@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <UserSecretsId>3228803c-add9-46fb-b949-9e2a2e89056a</UserSecretsId>
+    <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
+    <DockerfileContext>.</DockerfileContext>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.20.1" />
+    <PackageReference Include="RestSharp" Version="112.0.0" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
+  </ItemGroup>
+
+</Project>

dozorova_alena_lab_3/WorkerService/WorkerService.csproj.user

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ActiveDebugProfile>WorkerService</ActiveDebugProfile>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
+    <DebuggerFlavor>ProjectDebugger</DebuggerFlavor>
+  </PropertyGroup>
+</Project>

dozorova_alena_lab_3/WorkerService/WorkerService.sln

@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.10.35004.147
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WorkerService", "WorkerService.csproj", "{A9DF2332-E571-49AD-805A-D61B23C40D5F}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{A9DF2332-E571-49AD-805A-D61B23C40D5F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A9DF2332-E571-49AD-805A-D61B23C40D5F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A9DF2332-E571-49AD-805A-D61B23C40D5F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A9DF2332-E571-49AD-805A-D61B23C40D5F}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {B515427C-329A-4B73-B82C-45D929A6EA75}
+	EndGlobalSection
+EndGlobal

dozorova_alena_lab_3/WorkerService/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

dozorova_alena_lab_3/WorkerService/appsettings.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

dozorova_alena_lab_3/docker-compose.yml

@@ -0,0 +1,21 @@
+services:
+    nginx:
+        image: nginx
+        depends_on:
+            - postservice
+            - workerservice
+        volumes:
+            - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf
+        ports:
+            - 80:80
+    
+    postservice:
+        build: .\PostService
+        ports:
+            - 81:8080
+    workerservice:
+        build: .\WorkerService
+        ports:
+            - 82:8080
+        depends_on:
+            - postservice

dozorova_alena_lab_3/nginx/nginx.conf

@@ -0,0 +1,21 @@
+server {
+    listen      80;
+    listen      [::]:80;
+    server_name localhost;
+
+    location /postservice/ {
+        proxy_pass       http://postservice:80/;
+		proxy_set_header Host      $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header X-Forwarded-Prefix /admin;
+    }
+
+    location /workerservice/ {
+        proxy_pass       http://workerservice:80/;
+		proxy_set_header Host      $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header X-Forwarded-Prefix /admin;
+    }
+}

dozorova_alena_lab_3/readme.md

@@ -0,0 +1,16 @@
+# Лабораторная работа 3
+В работе представлен пример синхронного обмена сообщениями между сервисами и их взаимодейсвием с внешним миром.
+## Описание
+Были взяты две сущности: работник и должность. Первый сервис позволяет манипулировать списком должностей, второй - списком работников, у каждого из которых может быть одна должность. У одной должности может быть много работников.
+Реализована система была с помощью web-api на c# с хранением данных в оперативной памяти.
+В качестве интерфейса используется Swagger, который можно использовать для отправки запросов. 
+## Запуск
+Для запуска лабораторной работы необходимо иметь запущенный Docker.
+Необходимо перейти в папку, где располагается данный файл. Далее открыть терминал и ввести команду:
+```
+docker compose up -d --build
+```
+Важно, чтобы в этот момент на компьютере был свободен порт 80.
+В результате, после сборки вся система запустится и Swagger-ы будут доступны по путям http://localhost/postservice/swagger и http://localhost/workerservice/swagger
+## Видеодемонстрация
+Видеодемонстрация результата лабораторной работы представлена по [адресу](https://drive.google.com/file/d/1rg2xnXM-jPDfFJWxNIitq0I8kXj9Pr3-/view?usp=sharing)

kashin_maxim_lab_1/README.md

@@ -0,0 +1,93 @@
+# Кашин Максим ПИбд-42
+
+## Описание
+
+Этот проект разворачивает среду с базой данных MySQL, системами управления проектами Redmine и платформой для создания сайтов WordPress с использованием Docker Compose. Ниже приведены шаги для запуска и настройки.
+
+## 0. Предварительные действия
+
+Перед запуском Docker Compose выполнил следующие шаги:
+
+1. Установил [Docker Desktop](https://www.docker.com/products/docker-desktop) для моей операционной системы.
+2. Настроил брандмауэр Windows и разрешил доступ Docker.
+3. Открыл PowerShell с правами администратора и выполнил следующие команды:
+    ```bash
+    net start vmcompute
+    wsl --set-default-version 2
+    ```
+
+## 1. Структура и запуск сервиса
+
+Файл `docker-compose.yml` содержит описание трех сервисов:
+- **db (MySQL)** – база данных;
+- **redmine (Redmine)** – система управления проектами;
+- **wordpress (WordPress)** – платформа для создания сайтов.
+
+Запуск всех сервисов происходит через команду:
+    ```bash
+    docker-compose up -d
+    ```
+
+## 2. Сервис MySQL
+
+Сервис `db` представляет собой контейнер с MySQL версии 8.0.
+
+- **Образ**: `mysql:8.0`
+- **Переменные окружения**:
+  - `MYSQL_ROOT_PASSWORD` — пароль для пользователя root.
+  - `MYSQL_DATABASE` — имя создаваемой базы данных (exampledb).
+  - `MYSQL_USER` — имя пользователя базы данных (exampleuser).
+  - `MYSQL_PASSWORD` — пароль пользователя базы данных (examplepass).
+- **Тома (volumes)**:
+  - `db-data:/var/lib/mysql` — том для хранения данных базы данных.
+
+Сервис MySQL необходим для работы как Redmine, так и WordPress.
+
+## 3. Сервис Redmine
+
+Сервис `redmine` представляет собой контейнер с системой управления проектами Redmine.
+
+- **Образ**: `redmine`
+- **Порты**:
+  - `8080:3000` — Redmine будет доступен по адресу http://localhost:8080.
+- **Переменные окружения**:
+  - `REDMINE_DB_DATABASE` — имя базы данных (exampledb).
+  - `REDMINE_DB_MYSQL` — имя хоста базы данных (db).
+  - `REDMINE_DB_PASSWORD` — пароль для подключения к базе данных (example).
+  - `REDMINE_SECRET_KEY_BASE` — секретный ключ для работы с сессиями.
+- **Тома (volumes)**:
+  - `redmine:/usr/src/redmine/files` — том для хранения файлов Redmine.
+
+## 4. Сервис WordPress
+
+Сервис `wordpress` представляет собой контейнер с платформой WordPress.
+
+- **Образ**: `wordpress`
+- **Порты**:
+  - `8081:80` — WordPress будет доступен по адресу http://localhost:8081.
+- **Переменные окружения**:
+  - `WORDPRESS_DB_HOST` — хост базы данных (db).
+  - `WORDPRESS_DB_USER` — имя пользователя базы данных (exampleuser).
+  - `WORDPRESS_DB_PASSWORD` — пароль для подключения к базе данных (examplepass).
+  - `WORDPRESS_DB_NAME` — имя базы данных (exampledb).
+- **Тома (volumes)**:
+  - `wordpress:/var/www/html` — том для хранения файлов WordPress.
+
+## 5. Томa данных
+
+Для хранения данных и постоянства контейнеров используются три тома:
+
+- `wordpress` — для данных WordPress.
+- `db-data` — для данных MySQL.
+- `redmine` — для файлов Redmine.
+
+## 6. Остановка сервисов
+
+Для остановки и удаления всех контейнеров необходимо выполнить команду:
+    ```bash
+    docker-compose down
+    ```
+
+## 7. Ссылка на видео 
+
+[Видео-отчёт Кашин Максим ПИбд-42](https://disk.yandex.ru/i/O8L1qmk4PIbCvA)

kashin_maxim_lab_1/docker-compose.yml

@@ -0,0 +1,45 @@
+version: '3.1'  # Версия Docker Compose файла
+
+services:  # Определение сервисов, которые будут запускаться
+
+  db:  # Сервис базы данных MySQL
+    image: mysql:8.0  # Образ
+    restart: always  # Автоматический перезапуск контейнера
+    environment:  # Переменные окружения для конфигурации базы данных
+      MYSQL_ROOT_PASSWORD: example  
+      MYSQL_DATABASE: exampledb  
+      MYSQL_USER: exampleuser 
+      MYSQL_PASSWORD: examplepass 
+    volumes:  # Определение томов для сохранения данных базы данных
+      - db-data:/var/lib/mysql  
+
+  redmine:  # redmine Система учёта багов, т.е. баг-трекер.
+    image: redmine  # Образ
+    restart: always  # Автоматический перезапуск контейнера
+    ports:  
+      - 8080:3000  # Переадресация локального порта 8080 на порт 3000 в контейнере
+    environment:  # Переменные окружения для настройки Redmine (подключение к бд)
+      REDMINE_DB_DATABASE: exampledb  
+      REDMINE_DB_MYSQL: db  
+      REDMINE_DB_PASSWORD: example  
+      REDMINE_SECRET_KEY_BASE: supersecretkey  
+    volumes:  # Том для хранения данных Redmine
+      - redmine:/usr/src/redmine/files  
+
+  wordpress:  # wordpress Популярная система управления контентом.
+    image: wordpress  # Образ 
+    restart: always  # Автоматический перезапуск контейнера
+    ports:  
+      - 8081:80  # Переадресация локального порта 8081 на порт 80 в контейнере
+    environment:  # Переменные окружения для настройки WordPress (подключение к бд)
+      WORDPRESS_DB_HOST: db  
+      WORDPRESS_DB_USER: exampleuser  
+      WORDPRESS_DB_PASSWORD: examplepass  
+      WORDPRESS_DB_NAME: exampledb  
+    volumes:  # Том для хранения данных WordPress
+      - wordpress:/var/www/html  
+
+volumes:  # Определение томов для хранения данных
+  wordpress:  
+  db-data: 
+  redmine:  

kuzarin_maxim_lab_3/.dockerignore

@@ -0,0 +1,30 @@
+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/azds.yaml
+**/bin
+**/charts
+**/docker-compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+LICENSE
+README.md
+!**/.gitignore
+!.git/HEAD
+!.git/config
+!.git/packed-refs
+!.git/refs/heads/**

kuzarin_maxim_lab_3/.gitattributes

@@ -0,0 +1,63 @@
+###############################################################################
+# Set default behavior to automatically normalize line endings.
+###############################################################################
+* text=auto
+
+###############################################################################
+# Set default behavior for command prompt diff.
+#
+# This is need for earlier builds of msysgit that does not have it on by
+# default for csharp files.
+# Note: This is only used by command line
+###############################################################################
+#*.cs     diff=csharp
+
+###############################################################################
+# Set the merge driver for project and solution files
+#
+# Merging from the command prompt will add diff markers to the files if there
+# are conflicts (Merging from VS is not affected by the settings below, in VS
+# the diff markers are never inserted). Diff markers may cause the following 
+# file extensions to fail to load in VS. An alternative would be to treat
+# these files as binary and thus will always conflict and require user
+# intervention with every merge. To do so, just uncomment the entries below
+###############################################################################
+#*.sln       merge=binary
+#*.csproj    merge=binary
+#*.vbproj    merge=binary
+#*.vcxproj   merge=binary
+#*.vcproj    merge=binary
+#*.dbproj    merge=binary
+#*.fsproj    merge=binary
+#*.lsproj    merge=binary
+#*.wixproj   merge=binary
+#*.modelproj merge=binary
+#*.sqlproj   merge=binary
+#*.wwaproj   merge=binary
+
+###############################################################################
+# behavior for image files
+#
+# image files are treated as binary by default.
+###############################################################################
+#*.jpg   binary
+#*.png   binary
+#*.gif   binary
+
+###############################################################################
+# diff behavior for common document formats
+# 
+# Convert binary document formats to text before diffing them. This feature
+# is only available from the command line. Turn it on by uncommenting the 
+# entries below.
+###############################################################################
+#*.doc   diff=astextplain
+#*.DOC   diff=astextplain
+#*.docx  diff=astextplain
+#*.DOCX  diff=astextplain
+#*.dot   diff=astextplain
+#*.DOT   diff=astextplain
+#*.pdf   diff=astextplain
+#*.PDF   diff=astextplain
+#*.rtf   diff=astextplain
+#*.RTF   diff=astextplain

kuzarin_maxim_lab_3/.gitignore

@@ -0,0 +1,363 @@
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# User-specific files
+*.rsuser
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Mono auto generated files
+mono_crash.*
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Ww][Ii][Nn]32/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+bld/
+[Bb]in/
+[Oo]bj/
+[Oo]ut/
+[Ll]og/
+[Ll]ogs/
+
+# Visual Studio 2015/2017 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# Visual Studio 2017 auto generated files
+Generated\ Files/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUnit
+*.VisualState.xml
+TestResult.xml
+nunit-*.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# Benchmark Results
+BenchmarkDotNet.Artifacts/
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+# ASP.NET Scaffolding
+ScaffoldingReadMe.txt
+
+# StyleCop
+StyleCopReport.xml
+
+# Files built by Visual Studio
+*_i.c
+*_p.c
+*_h.h
+*.ilk
+*.meta
+*.obj
+*.iobj
+*.pch
+*.pdb
+*.ipdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*_wpftmp.csproj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# Visual Studio Trace Files
+*.e2e
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# AxoCover is a Code Coverage Tool
+.axoCover/*
+!.axoCover/settings.json
+
+# Coverlet is a free, cross platform Code Coverage Tool
+coverage*.json
+coverage*.xml
+coverage*.info
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# NuGet Symbol Packages
+*.snupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+*.appx
+*.appxbundle
+*.appxupload
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!?*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+*- [Bb]ackup.rdl
+*- [Bb]ackup ([0-9]).rdl
+*- [Bb]ackup ([0-9][0-9]).rdl
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# CodeRush personal settings
+.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+# OpenCover UI analysis results
+OpenCover/
+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
+*.binlog
+
+# NVidia Nsight GPU debugger configuration file
+*.nvuser
+
+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
+
+# Local History for Visual Studio
+.localhistory/
+
+# BeatPulse healthcheck temp database
+healthchecksdb
+
+# Backup folder for Package Reference Convert tool in Visual Studio 2017
+MigrationBackup/
+
+# Ionide (cross platform F# VS Code tools) working folder
+.ionide/
+
+# Fody - auto-generated XML schema
+FodyWeavers.xsd

kuzarin_maxim_lab_3/DSaC.sln

@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.10.34916.146
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DSaC", "DSaC\DSaC.csproj", "{C1051C12-D7D0-4C77-AFBC-4F5FFD8EE367}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DSaC_second", "DSaC_second\DSaC_second.csproj", "{64F78585-2BBC-4656-BC50-41FBB8917719}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{C1051C12-D7D0-4C77-AFBC-4F5FFD8EE367}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C1051C12-D7D0-4C77-AFBC-4F5FFD8EE367}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C1051C12-D7D0-4C77-AFBC-4F5FFD8EE367}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C1051C12-D7D0-4C77-AFBC-4F5FFD8EE367}.Release|Any CPU.Build.0 = Release|Any CPU
+		{64F78585-2BBC-4656-BC50-41FBB8917719}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{64F78585-2BBC-4656-BC50-41FBB8917719}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{64F78585-2BBC-4656-BC50-41FBB8917719}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{64F78585-2BBC-4656-BC50-41FBB8917719}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {30D05708-634E-4FDE-9BCA-5A1B7A5EFF59}
+	EndGlobalSection
+EndGlobal

kuzarin_maxim_lab_3/DSaC/Controllers/CounterpartiesController.cs

@@ -0,0 +1,88 @@
+using DSaC.Models.DTOs;
+using DSaC.Models.Internal.Queries;
+using DSaC.Models.Internal.Сommands;
+using MediatR;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+
+namespace DSaC.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class CounterpartiesController : ControllerBase
+    {
+        private readonly IMediator mediator;
+
+        public CounterpartiesController(IMediator mediator)
+        {
+            this.mediator = mediator;
+        }
+
+        [HttpGet("")]
+        public async Task<IActionResult> GetCounterparties(
+            [FromQuery] int page = 0, 
+            [FromQuery] int pageSize = 10, 
+            [FromQuery] List<Guid>? ids = null
+            )
+        {
+            var request = new GetCounterpartiesQuery
+            {
+                Page = page,
+                PageSize = pageSize,
+                Ids = ids
+            };
+
+            var response = await mediator.Send(request);
+
+            return !response.IsError ? Ok(response.Value) : StatusCode(response.ErrorCode!.Value, response.ErrorText);
+        }
+
+        [HttpGet("{uuid:guid}")]
+        public async Task<IActionResult> GetFullCounterparty([FromRoute] Guid uuid)
+        {
+            var request = new GetCounterpartyQuery
+            {
+                Id = uuid
+            };
+
+            var response = await mediator.Send(request);
+
+            return !response.IsError ? Ok(response.Value) : StatusCode(response.ErrorCode!.Value, response.ErrorText);
+        }
+
+        [HttpPost("")]
+        public async Task<IActionResult> CreateCounterparty([FromBody] CounterpartyBaseDto dto)
+        {
+            var response = await mediator.Send(new CreateCounterpartyCommand()
+            {
+                Model = dto
+            });
+
+            return !response.IsError ? Ok(response.Value) : StatusCode(response.ErrorCode!.Value, response.ErrorText);
+        }
+
+        [HttpPut("{uuid:guid}")]
+        public async Task<IActionResult> UpdateRecord([FromRoute] Guid uuid, [FromBody] CounterpartyViewDto dto)
+        {
+            var response = await mediator.Send(new UpdateCounterpartyCommand()
+            {
+                Id=uuid,
+                Model = dto
+            });
+
+            return !response.IsError ? Ok(response.Value) : StatusCode(response.ErrorCode!.Value, response.ErrorText);
+        }
+
+        [HttpDelete("{uuid:guid}")]
+        public async Task<IActionResult> DeleteRecord([FromRoute] Guid uuid)
+        {
+            var response = await mediator.Send(new DeleteCounterpartyCommand()
+            {
+                Id = uuid,
+            });
+
+            return !response.IsError ? Ok() : StatusCode(response.ErrorCode!.Value, response.ErrorText);
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/DSaC.csproj

@@ -0,0 +1,26 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <UserSecretsId>55894bef-8317-4e30-a5f0-4dcd5c3f861e</UserSecretsId>
+    <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="MediatR" Version="12.4.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="8.0.8" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.8" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.8">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.20.1" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.3.12" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.4" />
+    <PackageReference Include="PIHelperSh.Configuration" Version="1.0.1" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
+  </ItemGroup>
+
+</Project>

kuzarin_maxim_lab_3/DSaC/Database/DsacContext.cs

@@ -0,0 +1,14 @@
+using DSaC.Database.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace DSaC.Database
+{
+    public class DsacContext: DbContext
+    {
+        public DsacContext(DbContextOptions options) : base(options)
+        {
+        }
+
+        public DbSet<Counterparty> Counterparties { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Database/Models/Counterparty.cs

@@ -0,0 +1,24 @@
+using AutoMapper;
+using DSaC.Models.DTOs;
+using DSaC.Models.Internal.Сommands;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace DSaC.Database.Models
+{
+    [Table("counterparty")]
+    [AutoMap(typeof(CounterpartyBaseDto))]
+    [AutoMap(typeof(CounterpartyViewDto))]
+    public class Counterparty
+    {
+        [Key]
+        [Column("id")]
+        public Guid Id { get; set; }
+
+        [Required]
+        [MaxLength(255)]
+        [Column("name")]
+        public string Name { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Dockerfile

@@ -0,0 +1,24 @@
+#See https://aka.ms/customizecontainer to learn how to customize your debug container and how Visual Studio uses this Dockerfile to build your images for faster debugging.
+
+FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
+WORKDIR /app
+EXPOSE 8080
+EXPOSE 8081
+
+FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+ARG BUILD_CONFIGURATION=Release
+WORKDIR /src
+COPY ["DSaC.csproj", "DSaC/"]
+RUN dotnet restore "DSaC/DSaC.csproj"
+WORKDIR "/src/DSaC"
+COPY . .
+RUN dotnet build "DSaC.csproj" -c $BUILD_CONFIGURATION -o /app/build
+
+FROM build AS publish
+ARG BUILD_CONFIGURATION=Release
+RUN dotnet publish "DSaC.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false
+
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "DSaC.dll"]

kuzarin_maxim_lab_3/DSaC/Logic/Handlers/Commands/CreateCounterpartyCommandHandler.cs

@@ -0,0 +1,51 @@
+using AutoMapper;
+using DSaC.Database;
+using DSaC.Database.Models;
+using DSaC.Logic.Handlers.Queries;
+using DSaC.Models.DTOs;
+using DSaC.Models.Internal;
+using DSaC.Models.Internal.Сommands;
+using MediatR;
+
+namespace DSaC.Logic.Handlers.Commands
+{
+    public class CreateCounterpartyCommandHandler : IRequestHandler<CreateCounterpartyCommand, ResponseModel<CounterpartyViewDto>>
+    {
+        private readonly ILogger _logger;
+        private readonly DsacContext _context;
+        private readonly IMapper _mapper;   
+
+        public CreateCounterpartyCommandHandler(ILogger<CreateCounterpartyCommandHandler> logger, DsacContext context, IMapper mapper)
+        {
+            _logger = logger;
+            _context = context;
+            _mapper = mapper;
+        }
+
+        public async Task<ResponseModel<CounterpartyViewDto>> Handle(CreateCounterpartyCommand request, CancellationToken cancellationToken)
+        {
+            try
+            {
+                var model = _mapper.Map<Counterparty>(request.Model);
+
+                var res = await _context.AddAsync(model);
+
+                await _context.SaveChangesAsync();
+
+                return new()
+                {
+                    Value = _mapper.Map<CounterpartyViewDto>(res.Entity)
+                };
+            }
+            catch (Exception ex) 
+            {
+                _logger.LogError(ex, "Error on creating counterparty");
+                return new()
+                {
+                    StatusCode = System.Net.HttpStatusCode.NotFound,
+                    ErrorText = "Cannot create counterparty"
+                };
+            }
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Logic/Handlers/Commands/DeleteCounterpartyCommandHandler.cs

@@ -0,0 +1,50 @@
+using AutoMapper;
+using DSaC.Database;
+using DSaC.Database.Models;
+using DSaC.Models.DTOs;
+using DSaC.Models.Internal;
+using DSaC.Models.Internal.Сommands;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace DSaC.Logic.Handlers.Commands
+{
+    public class DeleteCounterpartyCommandHandler: IRequestHandler<DeleteCounterpartyCommand, ResponseModel>
+    {
+        private readonly ILogger _logger;
+        private readonly DsacContext _context;
+        private readonly IMapper _mapper;
+
+        public DeleteCounterpartyCommandHandler(ILogger<DeleteCounterpartyCommandHandler> logger, DsacContext context, IMapper mapper)
+        {
+            _logger = logger;
+            _context = context;
+            _mapper = mapper;
+        }
+
+        public async Task<ResponseModel> Handle(DeleteCounterpartyCommand request, CancellationToken cancellationToken)
+        {
+            try
+            {
+                var res  = await _context.Counterparties.Where(x=>x.Id == request.Id).ExecuteDeleteAsync();
+
+                if (res == 1)return new();
+
+                return new()
+                {
+                    ErrorText = "Cannot find object to delete",
+                    StatusCode = System.Net.HttpStatusCode.NotFound
+                };
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error on deleteing counterparty");
+                return new()
+                {
+                    StatusCode = System.Net.HttpStatusCode.NotFound,
+                    ErrorText = "Cannot delete counterparty"
+                };
+            }
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Logic/Handlers/Commands/UpdateCounterpartyCommandHandler.cs

@@ -0,0 +1,50 @@
+using AutoMapper;
+using DSaC.Database;
+using DSaC.Database.Models;
+using DSaC.Models.DTOs;
+using DSaC.Models.Internal;
+using DSaC.Models.Internal.Сommands;
+using MediatR;
+
+namespace DSaC.Logic.Handlers.Commands
+{
+    public class UpdateCounterpartyCommandHandler: IRequestHandler<UpdateCounterpartyCommand, ResponseModel<CounterpartyViewDto>>
+    {
+        private readonly ILogger _logger;
+        private readonly DsacContext _context;
+        private readonly IMapper _mapper;
+
+        public UpdateCounterpartyCommandHandler(ILogger<UpdateCounterpartyCommandHandler> logger, DsacContext context, IMapper mapper)
+        {
+            _logger = logger;
+            _context = context;
+            _mapper = mapper;
+        }
+
+        public async Task<ResponseModel<CounterpartyViewDto>> Handle(UpdateCounterpartyCommand request, CancellationToken cancellationToken)
+        {
+            try
+            {
+                var model = _mapper.Map<Counterparty>(request.Model);
+
+                var res = _context.Update(model);
+
+                await _context.SaveChangesAsync();
+
+                return new()
+                {
+                    Value = _mapper.Map<CounterpartyViewDto>(res.Entity)
+                };
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error on updating counterparty");
+                return new()
+                {
+                    StatusCode = System.Net.HttpStatusCode.NotFound,
+                    ErrorText = "Cannot update counterparty"
+                };
+            }
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Logic/Handlers/Queries/GetCounterpartiesQueryHandler.cs

@@ -0,0 +1,50 @@
+using AutoMapper;
+using DSaC.Database;
+using DSaC.Models.DTOs;
+using DSaC.Models.Internal;
+using DSaC.Models.Internal.Queries;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace DSaC.Logic.Handlers.Queries
+{
+    public class GetCounterpartiesQueryHandler : IRequestHandler<GetCounterpartiesQuery, ResponseModel<List<CounterpartyViewDto>>>
+    {
+        private readonly ILogger _logger;
+        private readonly DsacContext _context;
+        private readonly IMapper _mapper;
+
+        public GetCounterpartiesQueryHandler(ILogger<GetCounterpartiesQueryHandler> logger, DsacContext context, IMapper mapper)
+        {
+            _logger = logger;
+            _context = context;
+            _mapper = mapper;
+        }
+
+        public async Task<ResponseModel<List<CounterpartyViewDto>>> Handle(GetCounterpartiesQuery request, CancellationToken cancellationToken)
+        {
+            try
+            {
+                var res = await _context.Counterparties
+                        .Where(x=>request.Ids == null || request.Ids.Contains(x.Id))
+                        .Skip(request.Page * request.PageSize).Take(request.PageSize)
+                        .ToListAsync();
+
+                return new()
+                {
+                    Value = res.Select(_mapper.Map<CounterpartyViewDto>).ToList(),
+                };
+            }
+            catch (Exception ex) 
+            {
+                _logger.LogError(ex, "Error on getting records");
+
+                return new()
+                {
+                    StatusCode = System.Net.HttpStatusCode.BadRequest,
+                    ErrorText = "Cannot get Counterparties by this request",
+                };
+            }
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Logic/Handlers/Queries/GetCounterpartyQueryHandler.cs

@@ -0,0 +1,54 @@
+using AutoMapper;
+using DSaC.Database;
+using DSaC.Models.DTOs;
+using DSaC.Models.Internal;
+using DSaC.Models.Internal.Queries;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace DSaC.Logic.Handlers.Queries
+{
+    public class GetCounterpartyQueryHandler: IRequestHandler<GetCounterpartyQuery, ResponseModel<CounterpartyViewDto>>
+    {
+        private readonly ILogger _logger;
+        private readonly DsacContext _context;
+        private readonly IMapper _mapper;
+
+        public GetCounterpartyQueryHandler(ILogger<GetCounterpartyQueryHandler> logger, DsacContext context, IMapper mapper)
+        {
+            _logger = logger;
+            _context = context;
+            _mapper = mapper;
+        }
+
+        public async Task<ResponseModel<CounterpartyViewDto>> Handle(GetCounterpartyQuery request, CancellationToken cancellationToken)
+        {
+            try
+            {
+                var res = await _context.Counterparties.FirstOrDefaultAsync(x=>x.Id == request.Id);
+
+                if (res == null)
+                    return new()
+                    {
+                        StatusCode = System.Net.HttpStatusCode.NotFound,
+                        ErrorText = "Counterparty with this ID does not exsist",
+                    };
+
+                return new()
+                {
+                    Value = _mapper.Map<CounterpartyViewDto>(res),
+                };
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error on getting record");
+
+                return new()
+                {
+                    StatusCode = System.Net.HttpStatusCode.NotFound,
+                    ErrorText = "Cannot get Counterparty by id",
+                };
+            }
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Migrations/20240907133944_InitMigraton.Designer.cs

@@ -0,0 +1,60 @@
+// <auto-generated />
+using System;
+using DSaC.Database;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DSaC.Migrations
+{
+    [DbContext(typeof(DsacContext))]
+    [Migration("20240907133944_InitMigraton")]
+    partial class InitMigraton
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.8")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("DSaC.Database.Models.Counterparty", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid")
+                        .HasColumnName("id");
+
+                    b.Property<string>("ContractNumber")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)")
+                        .HasColumnName("contract_number");
+
+                    b.Property<string>("ManagerName")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("character varying(255)")
+                        .HasColumnName("manager_name");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("character varying(255)")
+                        .HasColumnName("name");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("counterparty");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Migrations/20240907133944_InitMigraton.cs

@@ -0,0 +1,36 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DSaC.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitMigraton : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "counterparty",
+                columns: table => new
+                {
+                    id = table.Column<Guid>(type: "uuid", nullable: false),
+                    name = table.Column<string>(type: "character varying(255)", maxLength: 255, nullable: false),
+                    contract_number = table.Column<string>(type: "character varying(50)", maxLength: 50, nullable: false),
+                    manager_name = table.Column<string>(type: "character varying(255)", maxLength: 255, nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_counterparty", x => x.id);
+                });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "counterparty");
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Migrations/20240907140843_ChangingContractInfo.Designer.cs

@@ -0,0 +1,64 @@
+// <auto-generated />
+using System;
+using DSaC.Database;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DSaC.Migrations
+{
+    [DbContext(typeof(DsacContext))]
+    [Migration("20240907140843_ChangingContractInfo")]
+    partial class ChangingContractInfo
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.8")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("DSaC.Database.Models.Counterparty", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid")
+                        .HasColumnName("id");
+
+                    b.Property<string>("ContractNumber")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)")
+                        .HasColumnName("contract_number");
+
+                    b.Property<bool>("IsContractClosed")
+                        .HasColumnType("boolean")
+                        .HasColumnName("is_contract_closed");
+
+                    b.Property<string>("ManagerName")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("character varying(255)")
+                        .HasColumnName("manager_name");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("character varying(255)")
+                        .HasColumnName("name");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("counterparty");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Migrations/20240907140843_ChangingContractInfo.cs

@@ -0,0 +1,29 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DSaC.Migrations
+{
+    /// <inheritdoc />
+    public partial class ChangingContractInfo : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<bool>(
+                name: "is_contract_closed",
+                table: "counterparty",
+                type: "boolean",
+                nullable: false,
+                defaultValue: false);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "is_contract_closed",
+                table: "counterparty");
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Migrations/20240907141343_SmallHotfix.Designer.cs

@@ -0,0 +1,63 @@
+// <auto-generated />
+using System;
+using DSaC.Database;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DSaC.Migrations
+{
+    [DbContext(typeof(DsacContext))]
+    [Migration("20240907141343_SmallHotfix")]
+    partial class SmallHotfix
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.8")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("DSaC.Database.Models.Counterparty", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid")
+                        .HasColumnName("id");
+
+                    b.Property<string>("ContractNumber")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)")
+                        .HasColumnName("contract_number");
+
+                    b.Property<bool>("IsContractClosed")
+                        .HasColumnType("boolean")
+                        .HasColumnName("is_contract_closed");
+
+                    b.Property<string>("ManagerName")
+                        .HasMaxLength(255)
+                        .HasColumnType("character varying(255)")
+                        .HasColumnName("manager_name");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("character varying(255)")
+                        .HasColumnName("name");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("counterparty");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Migrations/20240907141343_SmallHotfix.cs

@@ -0,0 +1,40 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DSaC.Migrations
+{
+    /// <inheritdoc />
+    public partial class SmallHotfix : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<string>(
+                name: "manager_name",
+                table: "counterparty",
+                type: "character varying(255)",
+                maxLength: 255,
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "character varying(255)",
+                oldMaxLength: 255);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<string>(
+                name: "manager_name",
+                table: "counterparty",
+                type: "character varying(255)",
+                maxLength: 255,
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "character varying(255)",
+                oldMaxLength: 255,
+                oldNullable: true);
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Migrations/20240914065929_after-reconstruction.Designer.cs

@@ -0,0 +1,48 @@
+// <auto-generated />
+using System;
+using DSaC.Database;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DSaC.Migrations
+{
+    [DbContext(typeof(DsacContext))]
+    [Migration("20240914065929_after-reconstruction")]
+    partial class afterreconstruction
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.8")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("DSaC.Database.Models.Counterparty", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid")
+                        .HasColumnName("id");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("character varying(255)")
+                        .HasColumnName("name");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("counterparty");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Migrations/20240914065929_after-reconstruction.cs

@@ -0,0 +1,52 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DSaC.Migrations
+{
+    /// <inheritdoc />
+    public partial class afterreconstruction : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "contract_number",
+                table: "counterparty");
+
+            migrationBuilder.DropColumn(
+                name: "is_contract_closed",
+                table: "counterparty");
+
+            migrationBuilder.DropColumn(
+                name: "manager_name",
+                table: "counterparty");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<string>(
+                name: "contract_number",
+                table: "counterparty",
+                type: "character varying(50)",
+                maxLength: 50,
+                nullable: false,
+                defaultValue: "");
+
+            migrationBuilder.AddColumn<bool>(
+                name: "is_contract_closed",
+                table: "counterparty",
+                type: "boolean",
+                nullable: false,
+                defaultValue: false);
+
+            migrationBuilder.AddColumn<string>(
+                name: "manager_name",
+                table: "counterparty",
+                type: "character varying(255)",
+                maxLength: 255,
+                nullable: true);
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Migrations/DsacContextModelSnapshot.cs

@@ -0,0 +1,45 @@
+// <auto-generated />
+using System;
+using DSaC.Database;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DSaC.Migrations
+{
+    [DbContext(typeof(DsacContext))]
+    partial class DsacContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.8")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("DSaC.Database.Models.Counterparty", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid")
+                        .HasColumnName("id");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("character varying(255)")
+                        .HasColumnName("name");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("counterparty");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Models/DTOs/ContractViewDto.cs

@@ -0,0 +1,17 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace DSaC.Models.DTOs
+{
+    public class ContractViewDto
+    {
+        [Required(ErrorMessage = "Contract number must be present")]
+        public string ContractNumber { get; set; } = null!;
+
+        [Required(ErrorMessage = "Manager name must be present")]
+        public string ManagerName { get; set; } = null!;
+
+        public DateTime CreatinTime { get; set; }
+
+        public bool IsClosed { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Models/DTOs/CounterpartyBaseDto.cs

@@ -0,0 +1,13 @@
+
+using AutoMapper;
+using DSaC.Database.Models;
+using System.ComponentModel.DataAnnotations;
+
+namespace DSaC.Models.DTOs
+{
+    public class CounterpartyBaseDto
+    {
+        [Required(ErrorMessage = "Cpty name must be present")]
+        public string Name { get; set; } = null!;
+    }
+}

kuzarin_maxim_lab_3/DSaC/Models/DTOs/CounterpartyViewDto.cs

@@ -0,0 +1,11 @@
+using AutoMapper;
+using DSaC.Database.Models;
+
+namespace DSaC.Models.DTOs
+{
+    [AutoMap(typeof(Counterparty))]
+    public class CounterpartyViewDto: CounterpartyBaseDto
+    {
+        public Guid Id { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Models/Internal/Queries/GetCounterpartiesQuery.cs

@@ -0,0 +1,14 @@
+using DSaC.Models.DTOs;
+using MediatR;
+
+namespace DSaC.Models.Internal.Queries
+{
+    public class GetCounterpartiesQuery: IRequest<ResponseModel<List<CounterpartyViewDto>>>
+    {
+        public List<Guid>? Ids { get; set; }
+
+        public int Page {  get; set; }
+
+        public int PageSize { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Models/Internal/Queries/GetCounterpartyQuery.cs

@@ -0,0 +1,10 @@
+using DSaC.Models.DTOs;
+using MediatR;
+
+namespace DSaC.Models.Internal.Queries
+{
+    public class GetCounterpartyQuery: IRequest<ResponseModel<CounterpartyViewDto>>
+    {
+        public Guid Id { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Models/Internal/ResponseModel.cs

@@ -0,0 +1,30 @@
+using System.Net;
+
+namespace DSaC.Models.Internal
+{
+    public class ResponseModel
+    {
+        public string? ErrorText;
+
+        public bool IsError => !string.IsNullOrEmpty(ErrorText);
+
+        private int? _errorCode = 200;
+
+        public int? ErrorCode
+        {
+            get => _errorCode; 
+            set => _errorCode = value;
+        }
+
+        public HttpStatusCode? StatusCode
+        {
+            get => (HttpStatusCode?)_errorCode;
+            set => _errorCode = (int?)value;
+        }
+    }
+
+    public class ResponseModel<T> : ResponseModel 
+    {
+        public T? Value { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Models/Internal/Сommands/CreateCounterpartyCommand.cs

@@ -0,0 +1,10 @@
+using DSaC.Models.DTOs;
+using MediatR;
+
+namespace DSaC.Models.Internal.Сommands
+{
+    public class CreateCounterpartyCommand : IRequest<ResponseModel<CounterpartyViewDto>>
+    {
+        public CounterpartyBaseDto Model { get; set; } = null!;
+    }
+}

kuzarin_maxim_lab_3/DSaC/Models/Internal/Сommands/DeleteCounterpartyCommand.cs

@@ -0,0 +1,9 @@
+using MediatR;
+
+namespace DSaC.Models.Internal.Сommands
+{
+    public class DeleteCounterpartyCommand: IRequest<ResponseModel>
+    {
+        public Guid Id { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC/Models/Internal/Сommands/UpdateCounterpartyCommand.cs

@@ -0,0 +1,14 @@
+using DSaC.Models.DTOs;
+using MediatR;
+using System.ComponentModel.DataAnnotations;
+
+namespace DSaC.Models.Internal.Сommands
+{
+    public class UpdateCounterpartyCommand: IRequest<ResponseModel<CounterpartyViewDto>>
+    {
+        public Guid Id { get; set; }
+
+        [Required(ErrorMessage = "UpdateMessageMust be present")]
+        public CounterpartyViewDto Model { get; set; } = null!;
+    }
+}

kuzarin_maxim_lab_3/DSaC/Program.cs

@@ -0,0 +1,128 @@
+using DSaC.Database;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.OpenApi.Models;
+using NLog.Config;
+using NLog.Extensions.Logging;
+using NLog.Targets;
+using PIHelperSh.Configuration;
+using PIHelperSh.Configuration.Attributes;
+using System.Reflection;
+using LogLevel = NLog.LogLevel;
+
+[TrackedType]
+public class Program
+{
+    private static WebApplication? app;
+
+    [Constant(BlockName = "Database")]
+    private static string ConnectionString;
+
+    [Constant(BlockName = "GatewaySettings")]
+    private static string AppPrefix;
+    public static void Main(string[] args)
+    {
+        var builder = WebApplication.CreateBuilder(args);
+
+        ConfigureLogger(builder);
+
+        ConfigureServices(builder);
+
+        ConfigureDatabase(builder);
+
+        app = builder.Build();
+
+        var t = MigrateDatabase();
+
+        app.UseSwagger(c =>
+        {
+            if (!string.IsNullOrEmpty(AppPrefix))
+            {
+                //c.RouteTemplate = AppPrefix + "/swagger/{documentName}/swagger.json";
+
+                c.PreSerializeFilters.Add((swaggerDoc, httpReq) =>
+                {
+                    swaggerDoc.Servers = new List<OpenApiServer> { new OpenApiServer { Url = $"{httpReq.Scheme}://{httpReq.Host.Value}/{AppPrefix}" } };
+                });
+            }
+        });
+        app.UseSwaggerUI(c =>
+        {
+            //if (!string.IsNullOrEmpty(AppPrefix))
+            //{
+            //    c.SwaggerEndpoint($"/{AppPrefix}/swagger/v1/swagger.json", $"APP API");
+            //    c.RoutePrefix = $"{AppPrefix}/swagger";
+            //}
+        });
+
+        app.UseHttpsRedirection();
+
+        app.UseAuthorization();
+
+        app.MapControllers();
+
+        t.Wait();
+
+        app.Run();
+    }
+
+    private static void ConfigureLogger(WebApplicationBuilder builder)
+    {
+        var nLogConfig = new LoggingConfiguration();
+        var logConsole = new ConsoleTarget();
+        var blackhole = new NullTarget();
+
+        var logFile = new FileTarget()
+        {
+            FileName = "${basedir}/logs/${shortdate}_logs.log"
+        };
+
+        nLogConfig.AddRule(LogLevel.Trace, LogLevel.Trace, blackhole, "Microsoft.AspNetCore.*", true);
+        nLogConfig.AddRule(LogLevel.Info, LogLevel.Warn, logFile, "Microsoft.EntityFrameworkCore.*", true);
+        nLogConfig.AddRule(LogLevel.Info, LogLevel.Warn, logFile, "Microsoft.AspNetCore.*", true);
+        nLogConfig.AddRule(LogLevel.Info, LogLevel.Warn, logFile, "System.Net.Http.HttpClient.Refit.*", true);
+        nLogConfig.AddRule(LogLevel.Info, LogLevel.Error, logConsole);
+        nLogConfig.AddRule(LogLevel.Debug, LogLevel.Error, logFile);
+
+        builder.Logging.ClearProviders();
+        builder.Services.AddLogging(m => m.AddNLog(nLogConfig));
+    }
+
+    private static void ConfigureServices(WebApplicationBuilder builder)
+    {
+        builder.Services.AddConfigurations(builder.Configuration);
+        builder.Configuration.AddConstants();
+        builder.Services.AddAutoMapper(AppDomain.CurrentDomain.GetAssemblies());
+
+        builder.Services.AddMediatR(cfg => cfg.RegisterServicesFromAssemblyContaining<Program>());
+
+        builder.Services.AddControllers().AddNewtonsoftJson();
+
+        builder.Services.AddEndpointsApiExplorer();
+        builder.Services.AddSwaggerGen(c =>
+        {
+            c.SwaggerDoc("v1", new OpenApiInfo
+            {
+                Title = "Distributed computing and applications",
+                Version = "v1",
+                Description = ""
+            });
+
+            //c.EnableAnnotations();
+        });
+    }
+
+    private static void ConfigureDatabase(WebApplicationBuilder builder) 
+    {
+        builder.Services.AddDbContext<DsacContext>(options =>
+        {
+            options.UseNpgsql(ConnectionString);
+        });
+    }
+
+    private static async Task MigrateDatabase()
+    {
+        var context = app?.Services.CreateScope().ServiceProvider.GetService<DsacContext>();
+        if(context != null)
+            await context.Database.MigrateAsync();
+    }
+}

kuzarin_maxim_lab_3/DSaC/Properties/launchSettings.json

@@ -0,0 +1,52 @@
+{
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "http://localhost:5062"
+    },
+    "https": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "https://localhost:7219;http://localhost:5062"
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "Container (Dockerfile)": {
+      "commandName": "Docker",
+      "launchBrowser": true,
+      "launchUrl": "{Scheme}://{ServiceHost}:{ServicePort}/swagger",
+      "environmentVariables": {
+        "ASPNETCORE_HTTPS_PORTS": "8081",
+        "ASPNETCORE_HTTP_PORTS": "8080"
+      },
+      "publishAllPorts": true,
+      "useSSL": true
+    }
+  },
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:9154",
+      "sslPort": 44381
+    }
+  }
+}

kuzarin_maxim_lab_3/DSaC/appsettings.Development.json

@@ -0,0 +1,14 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "Database": {
+    "ConnectionString": "Host=db.dev-moio.online;Port=31153;Database=dsac_maxim;Username=postgres;Password=postgres_password"
+  },
+  "GatewaySettings": {
+    "AppPrefix": ""
+  }
+}

kuzarin_maxim_lab_3/DSaC/appsettings.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

kuzarin_maxim_lab_3/DSaC_second/Controllers/ContractController.cs

@@ -0,0 +1,88 @@
+using DSaC_second.Models.DTOs;
+using DSaC_second.Models.Internal.Queries;
+using DSaC_second.Models.Internal.Сommands;
+using MediatR;
+using Microsoft.AspNetCore.Components.Forms;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+
+namespace DSaC_second.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class ContractController : ControllerBase
+    {
+        private readonly IMediator _mediator;
+
+        public ContractController(IMediator mediator)
+        {
+            _mediator = mediator;
+        }
+
+        [HttpGet("")]
+        public async Task<IActionResult> GetContracts(
+        [FromQuery] int page = 0,
+        [FromQuery] int pageSize = 10,
+        [FromQuery] List<Guid>? ids = null
+        )
+        {
+            var request = new GetContractsQuery
+            {
+                Page = page,
+                PageSize = pageSize,
+                Ids = ids
+            };
+
+            var response = await _mediator.Send(request);
+
+            return !response.IsError ? Ok(response.Value) : StatusCode(response.ErrorCode!.Value, response.ErrorText);
+        }
+
+        [HttpGet("{uuid:guid}")]
+        public async Task<IActionResult> GetFullContract([FromRoute] Guid uuid)
+        {
+            var request = new GetContractQuery
+            {
+                Id = uuid
+            };
+
+            var response = await _mediator.Send(request);
+
+            return !response.IsError ? Ok(response.Value) : StatusCode(response.ErrorCode!.Value, response.ErrorText);
+        }
+
+        [HttpPost("")]
+        public async Task<IActionResult> CreateContract([FromBody] ContractBaseDto dto)
+        {
+            var response = await _mediator.Send(new CreateContractCommand()
+            {
+                Model = dto
+            });
+
+            return !response.IsError ? Ok(response.Value) : StatusCode(response.ErrorCode!.Value, response.ErrorText);
+        }
+
+        [HttpPut("{uuid:guid}")]
+        public async Task<IActionResult> UpdateContract([FromRoute] Guid uuid, [FromBody] ContractViewDto dto)
+        {
+            var response = await _mediator.Send(new UpdateContractCommand()
+            {
+                Id = uuid,
+                Model = dto
+            });
+
+            return !response.IsError ? Ok(response.Value) : StatusCode(response.ErrorCode!.Value, response.ErrorText);
+        }
+
+        [HttpDelete("{uuid:guid}")]
+        public async Task<IActionResult> DeleteContract([FromRoute] Guid uuid)
+        {
+            var response = await _mediator.Send(new DeleteContractCommand()
+            {
+                Id = uuid,
+            });
+
+            return !response.IsError ? Ok() : StatusCode(response.ErrorCode!.Value, response.ErrorText);
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/DSaC_second.csproj

@@ -0,0 +1,27 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <UserSecretsId>39d29416-63e9-4884-9c5f-9d6ff461995f</UserSecretsId>
+    <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="MediatR" Version="12.4.1" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="8.0.8" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.8" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.8">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.20.1" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.3.13" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.4" />
+    <PackageReference Include="PIHelperSh.Configuration" Version="1.0.1" />
+    <PackageReference Include="RestSharp" Version="112.0.0" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
+  </ItemGroup>
+
+</Project>

kuzarin_maxim_lab_3/DSaC_second/Database/DsacContext.cs

@@ -0,0 +1,15 @@
+using DSaC_second.Database.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace DSaC_second.Database
+{
+    public class DsacContext : DbContext
+    {
+        public DsacContext(DbContextOptions options) : base(options)
+        {
+            AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
+        }
+
+        public DbSet<Contract> Contracts { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Database/Models/Contract.cs

@@ -0,0 +1,38 @@
+using AutoMapper;
+using DSaC_second.Models.DTOs;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace DSaC_second.Database.Models
+{
+    [Table("contract")]
+    [AutoMap(typeof(ContractBaseDto))]
+    [AutoMap(typeof(ContractViewDto))]
+    public class Contract
+    {
+        [Key]
+        [Column("id")]
+        public Guid Id { get; set; }
+
+        [Column("contract_number")]
+        [Required]
+        public string ContractNumber { get; set; }
+
+        [Column("manager_name")]
+        [Required]
+        public string ManagerName { get; set; }
+
+        [Column("counterparty_id")]
+        [Required]
+        public Guid CounterpartyId { get; set; }
+
+        [Column("creation_time")]
+        [Required]
+        public DateTime CreatinTime { get; set; } = DateTime.Now;
+
+        [Column("is_closed")]
+        [DefaultValue(false)]
+        public bool IsClosed { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Dockerfile

@@ -0,0 +1,24 @@
+#See https://aka.ms/customizecontainer to learn how to customize your debug container and how Visual Studio uses this Dockerfile to build your images for faster debugging.
+
+FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
+WORKDIR /app
+EXPOSE 8080
+EXPOSE 8081
+
+FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+ARG BUILD_CONFIGURATION=Release
+WORKDIR /src
+COPY ["DSaC_second.csproj", "DSaC_second/"]
+RUN dotnet restore "DSaC_second/DSaC_second.csproj"
+WORKDIR "/src/DSaC_second"
+COPY . .
+RUN dotnet build "DSaC_second.csproj" -c $BUILD_CONFIGURATION -o /app/build
+
+FROM build AS publish
+ARG BUILD_CONFIGURATION=Release
+RUN dotnet publish "DSaC_second.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false
+
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "DSaC_second.dll"]

kuzarin_maxim_lab_3/DSaC_second/Logic/Handlers/Commands/CreateContractCommandHandler.cs

@@ -0,0 +1,76 @@
+using AutoMapper;
+using DSaC_second.Database;
+using DSaC_second.Database.Models;
+using DSaC_second.Logic.Handlers.Queries;
+using DSaC_second.Models.DTOs;
+using DSaC_second.Models.Internal;
+using DSaC_second.Models.Internal.Queries;
+using DSaC_second.Models.Internal.Сommands;
+using MediatR;
+
+namespace DSaC_second.Logic.Handlers.Commands
+{
+    public class CreateContractCommandHandler : IRequestHandler<CreateContractCommand, ResponseModel<ContractFullDto>>
+    {
+        private readonly ILogger _logger;
+        private readonly DsacContext _context;
+        private readonly IMapper _mapper;
+        private readonly IMediator _mediator;
+
+        public CreateContractCommandHandler(ILogger<CreateContractCommandHandler> logger, DsacContext context, IMapper mapper, IMediator mediator)
+        {
+            _logger = logger;
+            _context = context;
+            _mapper = mapper;
+            _mediator = mediator;
+        }
+
+        public async Task<ResponseModel<ContractFullDto>> Handle(CreateContractCommand request, CancellationToken cancellationToken)
+        {
+            try
+            {
+                var counterparty = await _mediator.Send(new GetConunterpartyQuery()
+                {
+                    Id = request.Model.CounterpartyId,
+                }, cancellationToken: cancellationToken);
+
+                if (counterparty.IsError)
+                    return new()
+                    {
+                        StatusCode = System.Net.HttpStatusCode.NotFound,
+                        ErrorText = counterparty.ErrorText,
+                    };
+                if (counterparty.Value == null)
+                    return new()
+                    {
+                        StatusCode = System.Net.HttpStatusCode.NotFound,
+                        ErrorText = "Cpty with this id not found",
+                    };
+
+                var model = _mapper.Map<Contract>(request.Model);
+
+                var outModel = await _context.Contracts.AddAsync(model, cancellationToken: cancellationToken);
+
+                await _context.SaveChangesAsync(cancellationToken);
+
+                var res = _mapper.Map<ContractFullDto>(model);
+                res.Counterparty = counterparty.Value!;
+
+                return new()
+                {
+                    Value = res,
+                };
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error on creating record");
+
+                return new()
+                {
+                    StatusCode = System.Net.HttpStatusCode.NotFound,
+                    ErrorText = "Cannot create contract",
+                };
+            }
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Logic/Handlers/Commands/DeleteContractCommandHandler.cs

@@ -0,0 +1,43 @@
+using AutoMapper;
+using DSaC_second.Database;
+using DSaC_second.Models.Internal;
+using DSaC_second.Models.Internal.Сommands;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace DSaC_second.Logic.Handlers.Commands
+{
+    public class DeleteContractCommandHandler: IRequestHandler<DeleteContractCommand, ResponseModel>
+    {
+        private readonly ILogger _logger;
+        private readonly DsacContext _context;
+        private readonly IMapper _mapper;
+
+        public DeleteContractCommandHandler(ILogger<DeleteContractCommandHandler> logger, DsacContext context, IMapper mapper)
+        {
+            _logger = logger;
+            _context = context;
+            _mapper = mapper;
+        }
+
+        public async Task<ResponseModel> Handle(DeleteContractCommand request, CancellationToken cancellationToken)
+        {
+            try
+            {
+                await _context.Contracts.Where(x => x.Id == request.Id).ExecuteDeleteAsync(cancellationToken);
+                
+                return new();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error on deleting record");
+
+                return new()
+                {
+                    StatusCode = System.Net.HttpStatusCode.NotFound,
+                    ErrorText = "Cannot delete contract by id",
+                };
+            }
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Logic/Handlers/Commands/UpdateContractCommandHandler.cs

@@ -0,0 +1,78 @@
+using AutoMapper;
+using DSaC_second.Database;
+using DSaC_second.Database.Models;
+using DSaC_second.Models.DTOs;
+using DSaC_second.Models.Internal;
+using DSaC_second.Models.Internal.Queries;
+using DSaC_second.Models.Internal.Сommands;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace DSaC_second.Logic.Handlers.Commands
+{
+    public class UpdateContractCommandHandler : IRequestHandler<UpdateContractCommand, ResponseModel<ContractFullDto>>
+    {
+        private readonly ILogger _logger;
+        private readonly DsacContext _context;
+        private readonly IMapper _mapper;
+        private readonly IMediator _mediator;
+
+        public UpdateContractCommandHandler(ILogger<UpdateContractCommandHandler> logger, DsacContext context, IMapper mapper, IMediator mediator)
+        {
+            _logger = logger;
+            _context = context;
+            _mapper = mapper;
+            _mediator = mediator;
+        }
+
+        public async Task<ResponseModel<ContractFullDto>> Handle(UpdateContractCommand request, CancellationToken cancellationToken)
+        {
+            try
+            {
+                var counterparty = await _mediator.Send(new GetConunterpartyQuery()
+                {
+                    Id = request.Model.CounterpartyId,
+                }, cancellationToken: cancellationToken);
+
+                if (counterparty.IsError)
+                    return new()
+                    {
+                        StatusCode = System.Net.HttpStatusCode.NotFound,
+                        ErrorText = counterparty.ErrorText,
+                    };
+                if(counterparty.Value == null)
+                    return new()
+                    {
+                        StatusCode = System.Net.HttpStatusCode.NotFound,
+                        ErrorText = "Cpty with this id not found",
+                    };
+
+                var model = _mapper.Map<Contract>(request.Model);
+
+                _context.Contracts.Update(model);
+
+                await _context.SaveChangesAsync(cancellationToken: cancellationToken);
+
+                var res = _mapper.Map<ContractFullDto>(model);
+
+                res.Counterparty = counterparty.Value!;
+
+                return new() 
+                { 
+                    Value = res 
+                };
+
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error on updating record");
+
+                return new()
+                {
+                    StatusCode = System.Net.HttpStatusCode.NotFound,
+                    ErrorText = "Cannot update contract by id",
+                };
+            }
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Logic/Handlers/Queries/GetContractQueryHandler.cs

@@ -0,0 +1,71 @@
+using AutoMapper;
+using DSaC_second.Database;
+using DSaC_second.Models.DTOs;
+using DSaC_second.Models.Internal;
+using DSaC_second.Models.Internal.Queries;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace DSaC_second.Logic.Handlers.Queries
+{
+    public class GetContractQueryHandler : IRequestHandler<GetContractQuery, ResponseModel<ContractFullDto>>
+    {
+        private readonly ILogger _logger;
+        private readonly DsacContext _context;
+        private readonly IMapper _mapper;
+        private readonly IMediator _mediator;
+
+        public GetContractQueryHandler(ILogger<GetContractQueryHandler> logger, DsacContext context, IMapper mapper, IMediator mediator)
+        {
+            _logger = logger;
+            _context = context;
+            _mapper = mapper;
+            _mediator = mediator;
+        }
+
+        public async Task<ResponseModel<ContractFullDto>> Handle(GetContractQuery request, CancellationToken cancellationToken)
+        {
+            try
+            {
+                var res = await _context.Contracts.FirstOrDefaultAsync(x => x.Id == request.Id, cancellationToken: cancellationToken);
+
+                if (res == null)
+                    return new()
+                    {
+                        StatusCode = System.Net.HttpStatusCode.NotFound,
+                        ErrorText = "Contract with whit Id is not exist"
+                    };
+                var counterparty = await _mediator.Send(new GetConunterpartyQuery()
+                {
+                    Id = res.CounterpartyId
+                }, cancellationToken: cancellationToken);
+
+                if (counterparty.IsError)
+                    return new()
+                    {
+                        StatusCode = System.Net.HttpStatusCode.NotFound,
+                        ErrorText = counterparty.ErrorText
+                    };
+
+                var model = _mapper.Map<ContractFullDto>(res);
+                model.Counterparty = counterparty.Value!;
+
+                return new()
+                {
+                    Value = model,
+                };
+
+            }
+            catch (Exception ex) 
+            {
+                _logger.LogError(ex, "Error on getting record");
+
+                return new()
+                {
+                    StatusCode = System.Net.HttpStatusCode.NotFound,
+                    ErrorText = "Cannot get contract by id",
+                };
+            }
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Logic/Handlers/Queries/GetContractsQueryHandler.cs

@@ -0,0 +1,50 @@
+using AutoMapper;
+using DSaC_second.Database;
+using DSaC_second.Models.DTOs;
+using DSaC_second.Models.Internal;
+using DSaC_second.Models.Internal.Queries;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace DSaC_second.Logic.Handlers.Queries
+{
+    public class GetContractsQueryHandler : IRequestHandler<GetContractsQuery, ResponseModel<List<ContractViewDto>>>
+    {
+        private readonly ILogger _logger;
+        private readonly DsacContext _context;
+        private readonly IMapper _mapper;
+
+        public GetContractsQueryHandler(ILogger<GetContractsQueryHandler> logger, DsacContext context, IMapper mapper)
+        {
+            _logger = logger;
+            _context = context;
+            _mapper = mapper;
+        }
+
+        public async Task<ResponseModel<List<ContractViewDto>>> Handle(GetContractsQuery request, CancellationToken cancellationToken)
+        {
+            try 
+            {
+                var res = await _context.Contracts
+                    .Where(x=>request.Ids == null || request.Ids.Contains(x.Id))
+                        .Skip(request.Page * request.PageSize).Take(request.PageSize)
+                        .ToListAsync(cancellationToken: cancellationToken);
+
+                return new()
+                {
+                    Value = res.Select(_mapper.Map<ContractViewDto>).ToList(),
+                };
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error on getting records");
+
+                return new()
+                {
+                    StatusCode = System.Net.HttpStatusCode.NotFound,
+                    ErrorText = "Cannot get contracts",
+                };
+            }
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Logic/Handlers/Queries/GetConunterpartyQueryHandler.cs

@@ -0,0 +1,72 @@
+using AutoMapper;
+using DSaC_second.Database;
+using DSaC_second.Logic.Handlers.Commands;
+using DSaC_second.Models.DTOs;
+using DSaC_second.Models.Internal;
+using DSaC_second.Models.Internal.Queries;
+using MediatR;
+using PIHelperSh.Configuration.Attributes;
+using RestSharp;
+
+namespace DSaC_second.Logic.Handlers.Queries
+{
+    [TrackedType]
+    public class GetConunterpartyQueryHandler : IRequestHandler<GetConunterpartyQuery, ResponseModel<CounterpartyViewDto>>
+    {
+        private readonly ILogger _logger;
+        private readonly DsacContext _context;
+        private readonly IMapper _mapper;
+        private readonly RestClient _restClient;
+
+        [Constant(BlockName = "FirstService")]
+        private static string BaseUrl;
+
+        [Constant(BlockName = "FirstService")]
+        private static string GetCounterpartyPostfix;
+
+        public GetConunterpartyQueryHandler(ILogger<GetConunterpartyQueryHandler> logger, DsacContext context, IMapper mapper)
+        {
+            _logger = logger;
+            _context = context;
+            _mapper = mapper;
+            _restClient = new RestClient(BaseUrl);
+        }
+
+        ~GetConunterpartyQueryHandler()
+        {
+            _restClient.Dispose();
+        }
+
+        public async Task<ResponseModel<CounterpartyViewDto>> Handle(GetConunterpartyQuery request, CancellationToken cancellationToken)
+        {
+            try
+            {
+                var rq = new RestRequest($"{GetCounterpartyPostfix}/{request.Id.ToString()}");
+
+                var res = await _restClient.ExecuteAsync<CounterpartyViewDto>(rq, cancellationToken:cancellationToken);
+
+                if (res.IsSuccessful)
+                    return new()
+                    {
+                        Value = res.Data
+                    };
+
+                return new()
+                {
+                    StatusCode = res.StatusCode,
+                    ErrorText = res.ErrorMessage,
+                };
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error on getting record from first service");
+
+                return new()
+                {
+                    StatusCode = System.Net.HttpStatusCode.NotFound,
+                    ErrorText = "Cannot get cpty from first service",
+                };
+            }
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Migrations/20240914152154_initial.Designer.cs

@@ -0,0 +1,64 @@
+// <auto-generated />
+using System;
+using DSaC_second.Database;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DSaC_second.Migrations
+{
+    [DbContext(typeof(DsacContext))]
+    [Migration("20240914152154_initial")]
+    partial class initial
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.8")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("DSaC_second.Database.Models.Contract", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid")
+                        .HasColumnName("id");
+
+                    b.Property<string>("ContractNumber")
+                        .IsRequired()
+                        .HasColumnType("text")
+                        .HasColumnName("contract_number");
+
+                    b.Property<Guid>("CounterpartyId")
+                        .HasColumnType("uuid")
+                        .HasColumnName("counterparty_id");
+
+                    b.Property<DateTime>("CreatinTime")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("creation_time");
+
+                    b.Property<bool>("IsClosed")
+                        .HasColumnType("boolean")
+                        .HasColumnName("is_closed");
+
+                    b.Property<string>("ManagerName")
+                        .IsRequired()
+                        .HasColumnType("text")
+                        .HasColumnName("manager_name");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("contract");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Migrations/20240914152154_initial.cs

@@ -0,0 +1,38 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DSaC_second.Migrations
+{
+    /// <inheritdoc />
+    public partial class initial : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "contract",
+                columns: table => new
+                {
+                    id = table.Column<Guid>(type: "uuid", nullable: false),
+                    contract_number = table.Column<string>(type: "text", nullable: false),
+                    manager_name = table.Column<string>(type: "text", nullable: false),
+                    counterparty_id = table.Column<Guid>(type: "uuid", nullable: false),
+                    creation_time = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    is_closed = table.Column<bool>(type: "boolean", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_contract", x => x.id);
+                });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "contract");
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Migrations/DsacContextModelSnapshot.cs

@@ -0,0 +1,61 @@
+// <auto-generated />
+using System;
+using DSaC_second.Database;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DSaC_second.Migrations
+{
+    [DbContext(typeof(DsacContext))]
+    partial class DsacContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.8")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("DSaC_second.Database.Models.Contract", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid")
+                        .HasColumnName("id");
+
+                    b.Property<string>("ContractNumber")
+                        .IsRequired()
+                        .HasColumnType("text")
+                        .HasColumnName("contract_number");
+
+                    b.Property<Guid>("CounterpartyId")
+                        .HasColumnType("uuid")
+                        .HasColumnName("counterparty_id");
+
+                    b.Property<DateTime>("CreatinTime")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("creation_time");
+
+                    b.Property<bool>("IsClosed")
+                        .HasColumnType("boolean")
+                        .HasColumnName("is_closed");
+
+                    b.Property<string>("ManagerName")
+                        .IsRequired()
+                        .HasColumnType("text")
+                        .HasColumnName("manager_name");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("contract");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Models/DTOs/ContractBaseDto.cs

@@ -0,0 +1,17 @@
+using AutoMapper;
+using System.ComponentModel.DataAnnotations;
+
+namespace DSaC_second.Models.DTOs
+{
+    public class ContractBaseDto
+    {
+        [Required(ErrorMessage = "Contract number must be present")]
+        public string ContractNumber { get; set; } = null!;
+
+        [Required(ErrorMessage = "Manager name must be present")]
+        public string ManagerName { get; set; } = null!;
+
+        [Required(ErrorMessage = "Counterparty id must be present")]
+        public Guid CounterpartyId { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Models/DTOs/ContractFullDto.cs

@@ -0,0 +1,11 @@
+using AutoMapper;
+using DSaC_second.Database.Models;
+
+namespace DSaC_second.Models.DTOs
+{
+    [AutoMap(typeof(Contract))]
+    public class ContractFullDto: ContractViewDto
+    {
+        public CounterpartyViewDto Counterparty { get; set; } = new(); 
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Models/DTOs/ContractViewDto.cs

@@ -0,0 +1,15 @@
+using AutoMapper;
+using DSaC_second.Database.Models;
+
+namespace DSaC_second.Models.DTOs
+{
+    [AutoMap(typeof(Contract))]
+    public class ContractViewDto: ContractBaseDto
+    {
+        public Guid Id { get; set; }
+
+        public DateTime CreatinTime { get; set; }
+
+        public bool IsClosed { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Models/DTOs/CounterpartyViewDto.cs

@@ -0,0 +1,12 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace DSaC_second.Models.DTOs
+{
+    public class CounterpartyViewDto
+    {
+        public Guid Id { get; set; }
+
+        [Required(ErrorMessage = "Cpty name must be present")]
+        public string Name { get; set; } = null!;
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Models/Internal/Queries/GetContractQuery.cs

@@ -0,0 +1,10 @@
+using DSaC_second.Models.DTOs;
+using MediatR;
+
+namespace DSaC_second.Models.Internal.Queries
+{
+    public class GetContractQuery : IRequest<ResponseModel<ContractFullDto>>
+    {
+        public Guid Id { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Models/Internal/Queries/GetContractsQuery.cs

@@ -0,0 +1,14 @@
+using DSaC_second.Models.DTOs;
+using MediatR;
+
+namespace DSaC_second.Models.Internal.Queries
+{
+    public class GetContractsQuery : IRequest<ResponseModel<List<ContractViewDto>>>
+    {
+        public List<Guid>? Ids { get; set; }
+
+        public int Page { get; set; }
+
+        public int PageSize { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Models/Internal/Queries/GetConunterpartyQuery.cs

@@ -0,0 +1,10 @@
+using DSaC_second.Models.DTOs;
+using MediatR;
+
+namespace DSaC_second.Models.Internal.Queries
+{
+    public class GetConunterpartyQuery: IRequest<ResponseModel<CounterpartyViewDto>>
+    {
+        public Guid Id { get; set; }
+    }
+}

kuzarin_maxim_lab_3/DSaC_second/Models/Internal/ResponseModel.cs

@@ -0,0 +1,30 @@
+using System.Net;
+
+namespace DSaC_second.Models.Internal
+{
+    public class ResponseModel
+    {
+        public string? ErrorText;
+
+        public bool IsError => !string.IsNullOrEmpty(ErrorText);
+
+        private int? _errorCode = 200;
+
+        public int? ErrorCode
+        {
+            get => _errorCode;
+            set => _errorCode = value;
+        }
+
+        public HttpStatusCode? StatusCode
+        {
+            get => (HttpStatusCode?)_errorCode;
+            set => _errorCode = (int?)value;
+        }
+    }
+
+    public class ResponseModel<T> : ResponseModel
+    {
+        public T? Value { get; set; }
+    }
+}