athirsonsilva / kafka-microservices

A simple Spring Boot and Apache Kafka microservices application with four modules: Order services, Email Services, Stock Services and one Base Domain.

kafka-microservices

A simple Spring Boot and Apache Kafka microservices application with four modules: Order services, Email Services, Stock Services and one Base Domain.

Requirements

• Java 17
• Maven
• Gradle

Architecture Layers

PRESENTATION LAYER

This layer is at the top of the architecture. This tier is responsible for:

✔️ Performing authentication.

✔️ Converting JSON data into an object (and vice versa).

✔️ Handling HTTP requests.

✔️ Transfering authentication to the business layer.

BUSINESS LAYER

The business layer is responsible for:

✔️ Performing validation.

✔️ Performing authorization.

✔️ Handling the business logic and rules.

PERSISTENCE LAYER

This layer is responsible for:

✔️ Containing storage logic.

✔️ Fetching objects and translating them into database rows (and vice versa).

DATABASE LAYER

This layer is simply the actual database that is responsible for:

✔️ Performing database operations (mainly CRUD operations).

Software structure

Getting Started

1. Clone the repository
2. Navigate to the project directory
3. Build the project using Maven:

./mvnw clean install

4. Run the project using Maven wrapper:

./mvnw spring-boot:run

5. The application will start on http://localhost:8080

Usage

• You will also need the database installed on your machine and set the connection vars on the application.properties or application.yml