| Event | Order Status | Payment Status | Interservice Call (Sync/Async) |
|---|---|---|---|
| User places an order | CREATED | PENDING (if payment service unavailable / any exception thrown) | Sync (1. Order → Item: check availability; 2. Account: get address / paymentmethod; 3. Payment: validate card) |
| Payment validation success | CREATED | VALIDATED | Async (Order → Kafka → Shipping) |
| Payment validation fails | CANCELED | FAILED | |
| User adds/removes item(s) to an existing order | UPDATED | ADJUSTMENT_PENDING (if payment service unavailable / any exception thrown) | Sync (Order → Item: check availability; Order → Payment: validate update) |
| Payment validation success for update | UPDATED | VALIDATED (new) VOIDED (original) | Async (Order → Kafka → Shipping) |
| Payment validation fails for update | SUSPENDED | FAILED (new) VOIDED (original) | Async (Order → Kafka → Shipping) |
| Shipping Service processes order | with status: CREATED/UPDATED | with status: VALIDATED | Async (Shipping → Kafka → Payment) |
| Payment processed successfully | SHIPPED | PAID | Async (Payment → Kafka → Order/Shipping) |
| Payment failed | SUSPENDED | FAILED | Async (Payment → Kafka → Order/Shipping) |
| User cancels order before shipping | CANCELED | CANCELED | Sync (Order → Payment: cancel authorization) + Async (Order → Kafka → Shipping) |
| Order marked as delivered | DELIVERED | PAID | Async (Shipping → Kafka → Order) |
| Refund requested after delivery | DELIVERED (order) REFUND_REQUESTED (refund) | PAID (payment) REFUND_REQUESTED (refund) | Sync (Order → Payment: initiate refund) |
| Refund approved and processed | DELIVERED (order) REFUNDED (refund) | PAID (payment) REFUNDED (refund) | Async (Payment → Kafka → Order) |
Run docker-compose up -d in your root directory
http://localhost:8080/swagger-ui/index.html - account-service
http://localhost:8081/swagger-ui/index.html - item-service
http://localhost:8082/swagger-ui/index.html - cart-service
http://localhost:8083/swagger-ui/index.html - order-service
http://localhost:8084/swagger-ui/index.html - payment-service
http://localhost:8085/swagger-ui/index.html - shipping-service
http://localhost:8761/ - Eureka server
http://localhost:8088/ - Kafka UI