Lab2 work with api

.gitignore

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+# Node modules
+node_modules/
+frontend/node_modules/
+backend/node_modules/
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Dependency directories
+jspm_packages/
+
+# Build outputs
+dist/
+build/
+frontend/dist/
+backend/dist/
+
+# Environment variables
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# System files
+.DS_Store
+Thumbs.db
+
+# IDE settings
+.vscode/
+.idea/
+*.swp
+
+# Backup files
+*.bak
+*.tmp
+

README.md

@@ -1 +1,64 @@
+🚗 Auto Articles — Full-Stack Node.js + React App
+- Overview
 
+A simple full-stack application for managing car-related articles.
+Users can:
+
+View a list of existing articles
+
+Open and read a specific article
+
+Create new articles using a WYSIWYG editor
+
+The frontend is built with React + Vite,
+and the backend uses Node.js + Express, storing data as JSON files.
+
+* Tech Stack
+
+Frontend: React, React Router, React Quill, Vite
+Backend: Node.js, Express, FS
+Other: concurrently (to run both servers together)
+
+* Setup & Run Instructions
+
+Install dependencies
+
+npm install
+
+
+Run only the backend
+
+npm run start:backend
+
+
+Backend server runs at http://localhost:4000
+
+Run only the frontend
+
+npm run start:frontend
+
+
+App starts at http://localhost:5173
+
+(Vite may choose another port if it’s already in use)
+
+Run both frontend and backend together
+
+npm run start:all
+
+
+Both servers start concurrently using concurrently.
+
+* Validation & Error Handling
+
+Backend validates title and content (required and minimum length).
+
+Returns 400 Bad Request with a JSON error if validation fails.
+
+Frontend shows user-friendly messages for errors instead of plain alerts.
+
+* API Endpoints
+Method	Route	Description
+GET	/articles	Get all saved articles
+GET	/articles/:id	Get a specific article by ID
+POST	/articles	Create a new article

apps/log-analyzer/index.js

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+#!/usr/bin/env node

apps/log-generator/index.js

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+#!/usr/bin/env node
+import Logger from '../../shared/logger.js';
+const logger = new Logger();
+

article-app/backend/controllers/articleController.js

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+const ArticleService = require('../services/articleService');
+const sendJson = require('../utils/sendJson');
+
+exports.getAllArticles = (req, res) => {
+  try {
+    const articles = ArticleService.getAll();
+    return sendJson(res, 200, articles);
+  } catch (err) {
+    console.error(err);
+    return sendJson(res, 500, { error: 'Failed to read articles' });
+  }
+};
+
+exports.getArticleById = (req, res) => {
+  try {
+    const article = ArticleService.getById(req.params.id);
+
+    if (!article) {
+      return sendJson(res, 404, { error: 'Article not found' });
+    }
+
+    return sendJson(res, 200, article);
+  } catch (err) {
+    console.error(err);
+    return sendJson(res, 500, { error: 'Failed to read article' });
+  }
+};
+
+exports.createArticle = (req, res) => {
+  try {
+    let { title, content } = req.body;
+
+
+    title = typeof title === 'string' ? title.trim() : '';
+    content = typeof content === 'string' ? content.trim() : '';
+
+    if (!title || !content) {
+      return sendJson(res, 400, { error: 'Title and content are required.' });
+    }
+
+
+    if (title.length < 3) {
+      return sendJson(res, 400, { error: 'Title must be at least 3 characters long.' });
+    }
+
+    const article = ArticleService.create({ title, content });
+    return sendJson(res, 201, article);
+  } catch (err) {
+    console.error(err);
+
+    return sendJson(res, 400, { error: err.message || 'Failed to create article.' });
+  }
+};

article-app/backend/data/1.json

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+{
+  "id": 1,
+  "title": "BMW M3 E46",
+  "content": "The BMW M3 E46 is a legendary sports car from the early 2000s, powered by the naturally aspirated S54 engine paired with a manual gearbox. It became an icon for its perfect balance of performance and handling.",
+  "createdAt": "2025-11-09T02:24:29.094Z"
+}

article-app/backend/data/2.json

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+{
+  "id": 2,
+  "title": "Audi RS6 Avant",
+  "content": "The Audi RS6 Avant is a high-performance wagon combining luxury and raw power. With its twin-turbo V8 and quattro all-wheel drive, it blends family practicality with sports car performance.",
+  "createdAt": "2025-11-09T02:24:29.096Z"
+}

article-app/backend/data/3.json

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+{
+  "id": 3,
+  "title": "Toyota Supra A80",
+  "content": "The Toyota Supra A80 is an iconic Japanese sports car from the 1990s, famous for its 2JZ-GTE turbocharged engine and incredible tuning potential. It became a global legend after appearing in the Fast & Furious movies.",
+  "createdAt": "2025-11-09T02:24:29.096Z"
+}