A REST API for managing recipes and shopping carts, built with Micronaut and Kotlin.

• GET /recipes - List all available recipes with ingredients

• GET /carts/{id} - Get cart by ID with items and recipes
• POST /carts/{id}/add_recipe - Add a recipe to cart (I would change it to /carts/{id}/recipes for consistency with the DELETE endpoint and because it's more RESTish)
• DELETE /carts/{id}/recipes/{recipeId} - Remove a recipe from cart

• Micronaut 4.3.5 - Framework
• Kotlin - Programming language
• H2 - Database
• Flyway - Database migrations
• Micronaut Data JDBC - Data access layer
• JUnit 5 - Testing
• MockK - Mocking framework

The application uses the following tables:

• products - Product information (name, price)
• recipes - Recipe information (name, description, servings, prep time)
• recipe_ingredients - Recipe-to-product relationships
• carts - Shopping cart information
• cart_items - Individual product items in carts
• cart_recipes - Recipes added to carts

./gradlew run

The API will be available at http://localhost:8081

./gradlew test

./gradlew build

The application comes with sample data including:

Products:

• Tomatoes, Mozzarella, Basil, Olive Oil
• Pasta, Garlic, Chicken Breast, Onion, Bell Pepper, Rice

Recipes:

• Margherita Pizza (Tomatoes, Mozzarella, Basil, Olive Oil)
• Chicken Stir Fry (Chicken Breast, Onion, Bell Pepper, Rice)
• Pasta Aglio e Olio (Pasta, Garlic, Olive Oil)

Sample Carts:

• 3 empty carts (IDs: 1, 2, 3)

curl http://localhost:8081/recipes

curl http://localhost:8081/carts/1

curl -X POST http://localhost:8081/carts/1/add_recipe \
  -H "Content-Type: application/json" \
  -d '{"recipe_id": 1, "quantity": 1}'

curl -X DELETE http://localhost:8081/carts/1/recipes/1

src/
├── main/
│   ├── kotlin/me/andreaiacono/
│   │   ├── controller/          # REST controllers
│   │   ├── dto/                 # Data transfer objects
│   │   ├── model/               # Domain models
│   │   ├── repository/          # Data repositories
│   │   ├── service/             # Business logic
│   │   └── Application.kt       # Main application class
│   └── resources/
│       ├── application.yml      # Application configuration
│       └── db/migration/        # Database migrations
└── test/
    ├── kotlin/me/andreaiacono/
    │   ├── controller/          # Controller tests
    │   └── service/             # Service tests
    └── resources/
        └── application-test.yml # Test configuration

I used Claude Code for creating the project and then I re-arranged quite some things here and there for improving it.