Lesson 6: Integrating Kafka and Sending Emails with Mailtrap on Order Creation | Microservices
In this video, I’ll guide you through integrating Kafka into a Spring Boot Microservices system, enabling the order-service to send events whenever a new order is placed, and allowing the notification-service to automatically send confirmation emails to users.
This is the transition from REST to Event-Driven architecture, helping your system achieve:
Clear service decoupling
Better scalability and flexibility
Improved fault tolerance (a failing service won’t crash the whole system)
What’s covered in the video:
What is Kafka and why microservices benefit from an event-driven approach
Install Kafka + Zookeeper using Docker Compose
Configure a Kafka Producer in order-service
Build a Kafka Consumer in notification-service
Send real emails using SMTP Mailtrap
Live demo: Place an order → Kafka event → automatic confirmation email
✅ After this video, you'll be able to automate the order process and email notifications without REST calls between services!
📄 Docs: https://harrypage.hashnode.dev/bai-6-...
🔥 This is a foundation for integrating future services like Billing, Inventory, SMS, and more.
#Kafka #SpringBoot #Mailtrap #Microservices #JavaBackend #EventDrivenArchitecture #SpringKafka #HolyDev #EmailNotification #KafkaSpringBoot