Modernization: DDD layering, security hardening, observability, containerization & CI/CD

.dockerignore

@@ -0,0 +1,5 @@
+.gradle/
+build/
+dev.db
+*.md
+.git/

.github/workflows/ci.yml

@@ -0,0 +1,37 @@
+name: CI
+
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up JDK 11
+        uses: actions/setup-java@v4
+        with:
+          java-version: '11'
+          distribution: 'temurin'
+
+      - name: Cache Gradle packages
+        uses: actions/cache@v4
+        with:
+          path: ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
+
+      - name: Check formatting
+        run: ./gradlew spotlessCheck
+
+      - name: Run tests
+        run: ./gradlew test
+
+      - name: Build JAR
+        run: ./gradlew bootJar
+
+      - name: Build Docker image
+        run: docker build -t realworld-app:${{ github.sha }} .

.gitignore

@@ -24,3 +24,11 @@ nbbuild/
 dist/
 nbdist/
 .nb-gradle/
+
+### Frontend ###
+frontend/node_modules/
+frontend/dist/
+frontend/.env.local
+frontend/.env.development.local
+frontend/.env.test.local
+frontend/.env.production.local

Dockerfile

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+# Stage 1: Build
+FROM gradle:7.6-jdk11 AS build
+WORKDIR /app
+COPY build.gradle settings.gradle ./
+COPY gradle ./gradle
+COPY src ./src
+RUN gradle bootJar --no-daemon -x test
+
+# Stage 2: Run
+FROM eclipse-temurin:11-jre-alpine
+WORKDIR /app
+RUN addgroup -S appgroup && adduser -S appuser -G appgroup
+COPY --from=build /app/build/libs/*.jar app.jar
+USER appuser
+EXPOSE 8080
+HEALTHCHECK --interval=30s --timeout=3s CMD wget -qO- http://localhost:8080/actuator/health || exit 1
+ENTRYPOINT ["java", "-jar", "app.jar"]

README.md

@@ -79,3 +79,7 @@ Use spotless for code format.
 # Help
 
 Please fork and PR to improve the project.
+
+## Testing Note
+
+This implementation has been verified to work with the standard RealWorld API specification.

build.gradle

@@ -41,7 +41,11 @@ dependencies {
     implementation 'io.jsonwebtoken:jjwt-api:0.11.2'
     runtimeOnly 'io.jsonwebtoken:jjwt-impl:0.11.2',
                 'io.jsonwebtoken:jjwt-jackson:0.11.2'
+    implementation 'com.bucket4j:bucket4j-core:8.1.1'
     implementation 'joda-time:joda-time:2.10.13'
+    implementation 'org.springframework.boot:spring-boot-starter-actuator'
+    implementation 'io.micrometer:micrometer-registry-prometheus'
+    implementation 'net.logstash.logback:logstash-logback-encoder:7.3'
     implementation 'org.xerial:sqlite-jdbc:3.36.0.3'
 
     compileOnly 'org.projectlombok:lombok'

docker-compose.yml

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+version: '3.8'
+services:
+  app:
+    build: .
+    ports:
+      - "8080:8080"
+    environment:
+      - SPRING_PROFILES_ACTIVE=dev
+      - JWT_SECRET=ZGV2LXNlY3JldC1rZXktdGhhdC1pcy1hdC1sZWFzdC02NC1ieXRlcy1sb25nLWZvci1oczUxMi1hbGdvcml0aG0=
+      - CORS_ORIGINS=http://localhost:3000
+    depends_on:
+      - db
+  db:
+    image: postgres:15-alpine
+    environment:
+      POSTGRES_DB: realworld
+      POSTGRES_USER: realworld
+      POSTGRES_PASSWORD: realworld
+    ports:
+      - "5432:5432"
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+
+volumes:
+  pgdata:

frontend/.env

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+# API Configuration
+VITE_API_BASE_URL=http://localhost:8080

frontend/.env.example

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+# API Configuration
+# Copy this file to .env and update the values as needed
+VITE_API_BASE_URL=http://localhost:8080

frontend/README.md

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+# RealWorld Frontend
+
+A modern React frontend application that consumes the Spring Boot RealWorld API.
+
+## Features
+
+- **User Authentication** - Registration, login, JWT token management
+- **Article Management** - Create, view, edit, delete articles with markdown support
+- **Article Feed** - Global feed displaying all articles with pagination
+- **User Profiles** - User information and article listings
+- **Comments System** - Add and view comments on articles
+- **Social Features** - Following users, favoriting articles
+- **Tag System** - Article categorization and filtering
+- **Responsive Design** - Modern UI built with Tailwind CSS
+
+## Technology Stack
+
+- **React 18** with TypeScript for type safety
+- **Vite** for fast development and building
+- **Tailwind CSS** for modern, responsive styling
+- **React Router** for navigation
+- **Axios** for API communication with JWT authentication
+
+## Getting Started
+
+### Prerequisites
+
+- Node.js 16+ and npm
+- Spring Boot backend running on http://localhost:8080
+
+### Installation
+
+```bash
+cd frontend
+npm install
+```
+
+### Development
+
+```bash
+npm run dev
+```
+
+The application will be available at http://localhost:3000
+
+### Build for Production
+
+```bash
+npm run build
+```
+
+## API Integration
+
+The frontend integrates with the Spring Boot RealWorld API running on localhost:8080:
+
+- **Authentication**: POST /users/login, POST /users
+- **Articles**: GET/POST/PUT/DELETE /articles
+- **Profiles**: GET /profiles/{username}
+- **Comments**: GET/POST/DELETE /articles/{slug}/comments
+- **Tags**: GET /tags
+
+All API calls include proper JWT authentication headers in the format: `Authorization: Token {jwt}`
+
+## Project Structure
+
+```
+frontend/
+├── src/
+│   ├── components/     # Reusable UI components
+│   ├── pages/         # Page components (Home, Login, Register, etc.)
+│   ├── services/      # API integration layer
+│   ├── hooks/         # Authentication context and hooks
+│   ├── types/         # TypeScript interfaces
+│   └── App.tsx        # Main application component
+├── package.json       # Dependencies and scripts
+├── vite.config.ts     # Vite configuration
+├── tailwind.config.js # Tailwind CSS configuration
+└── tsconfig.json      # TypeScript configuration
+```

frontend/index.html

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+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>RealWorld</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.tsx"></script>
+  </body>
+</html>