Demo Base Kit

[vlussenburg]

✨ PR Description

Purpose: Enhance frontend application with order history functionality and API documentation using Swagger in the microservices architecture.

Main changes:

• Added order history endpoint in Java orders service with database storage functionality
• Integrated Swagger documentation for API endpoints in frontend gateway
• Improved frontend UI with order history display and enhanced error handling

Generated by LinearB AI and added by gitStream.
_{AI-generated content may contain inaccuracies. Please verify before using. We'd love your feedback! 🚀}

[gitstream-cm]

✨ PR Review

The PR adds database persistence and order history functionality, but introduces potential data consistency issues between billing and order storage operations.

2 issues detected:

🐞 Bug - Billing and order storage operations can fail independently, creating inconsistent state between payment and order records.

Details: The billing operation and order storage are not performed atomically. If billing succeeds but database insertion fails, money will be charged without recording the order, leading to data inconsistency.
File: services/orders-java/src/main/java/com/example/orders/controller/OrderController.java (40-41)

🐞 Bug - Database initialization failures are silently ignored, potentially causing the application to start in an unusable state.

Details: The table creation in @PostConstruct catches all exceptions and only prints the stack trace, allowing the application to start even if database initialization fails. This could lead to runtime failures when database operations are attempted.
File: services/orders-java/src/main/java/com/example/orders/controller/OrderController.java

Generated by LinearB AI and added by gitStream.
_{AI-generated content may contain inaccuracies. Please verify before using. We'd love your feedback! 🚀}

[gitstream-cm]

🐞 Bug - Data Consistency Issue: Wrap the billing and database operations in a transaction, or implement compensation logic to reverse the billing if database storage fails.

Suggested change

	// Log error, but don't prevent app startup
	e.printStackTrace();
	// Log error and prevent app startup on database initialization failure
	e.printStackTrace();
	throw new RuntimeException("Failed to initialize database tables", e);