It introduces new API endpoints, reorganizes database connection logic, and removes standalone scripts in favor of integrated FastAPI routes. The most important changes are grouped below:

API Endpoint Additions and Refactoring:

• Added new modular endpoints: health, echo, and a structured root endpoint that returns metadata and product data (app/api/health.py, app/api/echo.py, app/api/root.py). [1] [2] [3]
• Refactored app/api/routes.py to include routers from newly created endpoint modules, removing inline endpoint and schema definitions.

Database Connection Handling:

• Moved and refactored database connection logic to app/api/db.py (renamed from app/print_products.py), providing a dependency-compatible function for FastAPI instead of a standalone script.

Schema Definitions:

• Added EchoRequest and EchoResponse Pydantic models in a dedicated app/api/schemas.py file for request and response validation.

Cleanup and Removal of Standalone Scripts:

• Removed legacy scripts for database seeding and connection testing (app/seed_product_table.py, app/test_db_connection.py) in favor of integrated FastAPI endpoints and dependency management. [1] [2]

Version Tracking:

• Updated application version from 1.0.2 to 1.0.3 in app/__init__.py.