Spring Boot Microservice Invoice App

Implementation Details

🔗 Github Repo

🚀 Framework

• Spring Boot

🔌 APIs

• Spring Boot

🌍 Architecture

• Microservice

🖧 Calling APIs

• Open Feign Client

💾 Database Integration

• JPA

🔄 Database Migration

• Flyway

📊 Logging and Centralized Logging solution

• ELK Stack

⚠️ Exception handling

• Spring Boot

🕵️‍♂️ Distributed Tracing and Monitoring

• Micrometer

📈 Application Monitoring

• Spring Boot, Prometheus, Grafana

🐳 Containerization

• Docker, Dockerfiles

📜 API Specification

• OpenAPI (Swagger)

🎉 Event Driven

• Kafka

🧠 Caching

• Spring Boot Caching
• Caffein Caching

🛡️ Reliability

• Bulkhead and Circuit Breaker in API Gateway
• Retry in Open Feign
• Spring Retry in Kafka template Send

🌐 Source

• Github Repo
• Spring Initializr
• JWT
• Elastic
• Grafana
• Docker Kafka Configuration
• Kafdrop
• Microservice Project

📂 Postman Collection

• demo-microservice.postman_collection.json

🐳 Docker Start

• docker-compose up -d
• docker-compose -f docker-compose.yml -f extensions/fleet/fleet-compose.yml -f extensions/fleet/agent-apmserver-compose.yml up -d

Project Structure

Keycloak

Elastic

Prometheus

Grafana

Open Api Swagger

Kafdrop