Spring Boot Microservices

This repository contains the latest source code for a Spring Boot Microservices project.

Project Overview

This project implements a microservices architecture with the following services:

• Product Service (8080)
• Order Service (8081)
• Inventory Service (8082)
• Notification Service (8083)
• API Gateway (9000)
• Shop Frontend (Angular 18) (4200)

Tech Stack

The technologies used in this project:

• Spring Boot
• Angular
• MongoDB
• MySQL
• Kafka
• Keycloak
• Grafana Stack (Prometheus, Grafana, Loki, and Tempo)
• API Gateway (Spring Cloud Gateway MVC)

How to Run the Frontend Application

Prerequisites

Ensure you have the following installed on your machine:

• Node.js
• NPM
• Angular CLI

Run the Frontend

cd frontend
npm install
npm run start

📌 Frontend URL: http://localhost:4200/

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How to Run the Backend Services

Prerequisites

Ensure you have the following installed on your machine:

• Java 21
• Docker
• IntelliJ IDEA

Build and Run Services

Step 1: Build the Backend Services

Run the following command to build and package the backend services:

mvn clean package

Step 2: Start the Backend Services

You can start each service individually using IntelliJ IDEA:

1. Open the project in IntelliJ IDEA.
2. Locate each microservice inside the services/ folder.
3. Run each service one by one using the IntelliJ Run button.

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Accessing the Services

API Gateway

📌 URL: http://localhost:9000/

Microservices

Service	Port	URL
Product	8080	http://localhost:8080/
Order	8081	http://localhost:8081/
Inventory	8082	http://localhost:8082/
Notification	8083	http://localhost:8083/

Keycloak Admin Console

📌 URL: http://localhost:8181/

• Username: admin
• Password: admin

Grafana Dashboards

📌 URL: http://localhost:3000/

• Username: admin
• Password: admin

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Project Insights

This project helped me understand:
✅ Microservices Architecture
✅ Spring Boot Service Communication
✅ Event-Driven Architecture (Kafka)
✅ Authentication & Authorization (Keycloak)
✅ Monitoring & Logging (Grafana, Prometheus, Loki)

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