In modern applications, shopping cart and order services often communicate using event-driven architectures. Choosing between Apache Kafka and traditional Message Queues (e.g., RabbitMQ, Azure Service Bus) impacts performance, reliability, and scalability. This blog explores implementing a shopping cart and order service using both approaches, highlighting their differences, strengths, and ideal use cases.
Scenario Overview
We’ll create two services:
Shopping Cart Service: Sends an event when a user places an order.
Order Service: Consumes the event to process the order.
Kafka-Based Implementation
How Kafka Works
Kafka is a distributed, high-throughput log-based event streaming platform. Events are published to topics and consumed by multiple subscribers independently, ensuring scalability and fault tolerance.
