I use 3 microservices:

• order-service to create orders. This services sends messages to Kafka. It uses the KafkaTemplate.
• stock-service to store and check amount product in inventory on the order
• payment-service to store and check customer balance on the order

• Spring Boot
• Spring Kafka
• Kafka
• Zookeeper
• PostgreSQL
• confluent cloud

1. Go to docker folder, then run command: docker compose up -d

1. Import api collection json file order-payment-stock-service.postman_collection.json in postman folder to postman application
2. API list:

• localhost:8081/products/generate/{number}: Generate seed data for stock-service

  • Example: localhost:8081/products/generate/100: product records

• GET: localhost:8081/products: Get all products

• GET: localhost:8081/products/{id}: Get product with id = {id}

• POST: localhost:8081/products: Post 1 product record into database

• PUT: localhost:8081/products/{id}: Update product record with id = {id} on database

• localhost:8082/customers/generate/{number}: Generate seed data for payment-service

• GET: localhost:8082/customers: Get all products

• GET: localhost:8082/customers/{id}: Get customer with id = {id}

• POST: localhost:8082/customers: Post 1 customer record into database

• PUT: localhost:8082/customer: Update customer record with id = {id} on database

• localhost:8080/orders/generate/{number}: Generate orders

• GET: localhost:8080/orders: Get all orders

• POST: localhost:8080/orders: Post 1 order record into database

• GET: localhost:8080/orders/stream: Get all orders from Kafka stream