Project Overview

This project is a personal study project aimed at learning and exploring various technologies, including Spring Boot 4.0.x, Kotlin 2.3.x, and a wide range of modern tools and frameworks. Additionally, it includes the development of a blog application as a practical implementation.

See the full staged learning and engineering roadmap in docs/ROADMAP.md.

Learning Goals

Backend Technologies

• Spring Boot 4.0.x
• Kotlin 2.3.x
• RabbitMQ
• Kafka
• JDBC
• JPA
• PostgreSQL
• Redis Cluster
• Valkey
• Elasticsearch
• Indexing
• HDFS
• Hadoop
• OAuth2
• MongoDB
• Neo4j
• Cassandra

DevOps and Cloud

• Docker
• Kubernetes (K8s)
• CI/CD Pipelines
• Observability
• Configuration Center

Testing and Observability

• Comprehensive testing strategies.
• Observability tools for monitoring and debugging.

Blog Development

• A blog application to apply and demonstrate the above technologies.

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Backend

Features

• Built with Kotlin and Spring Boot 4.0.x.
• Includes modules for:
  • Web MVC
  • Data JPA
  • Validation
  • Actuator for monitoring
• Uses H2 Database for development.
• Supports Gradle for build automation.

Requirements

• JDK 25 or higher.
• Gradle (wrapper included).

Startup

1. Navigate to the backend directory.
2. Run the following command to start the backend service:

   ./gradlew bootRun

Build

To build the backend:

./gradlew build

The build artifacts will be located in backend/build/libs.

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Frontend

Features

• Built with React and TypeScript.
• Uses Vite for fast development and build.
• Includes ESLint for code linting.

Requirements

• Node.js (LTS version recommended).
• pnpm (preferred package manager).

Startup

1. Navigate to the frontend directory.
2. Install dependencies:

   pnpm install

3. Start the development server:

   pnpm dev

Build

To build the frontend:

pnpm build

The build output will be located in frontend/dist.

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Deployment

1. Build both the backend and frontend.
2. Deploy the backend JAR file from backend/build/libs to the server.
3. Deploy the frontend static files from frontend/dist to a web server.

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Technology Stack

Backend

• Kotlin 2.3.x
• Spring Boot 4.0.x
• RabbitMQ, Kafka, JDBC, JPA
• PostgreSQL, Redis Cluster, MongoDB, Neo4j, Cassandra
• Elasticsearch, Indexing, HDFS, Hadoop
• OAuth2

Frontend

• React
• TypeScript
• Vite
• pnpm

DevOps and Cloud

• Docker, Kubernetes (K8s)
• CI/CD Pipelines
• Observability
• Configuration Center