Add Anime Merchandise Catalog API with FastAPI and SQLite

README.md

@@ -1,3 +1,105 @@
-# FastAPI Application
+# Anime Merchandise Catalog API
 
-This is a FastAPI application bootstrapped by BackendIM, the AI-powered backend generation platform.
+A FastAPI-based API for managing an anime merchandise catalog.
+
+## Features
+
+- **Product Management:** Create, read, update, and delete anime merchandise products
+- **Category System:** Organize products with categories
+- **Filtering and Searching:** Filter products by anime title or character name
+- **API Documentation:** Auto-generated OpenAPI documentation
+
+## Tech Stack
+
+- **Framework:** FastAPI
+- **Database:** SQLite with SQLAlchemy and Alembic
+- **Authentication:** (Not implemented in this version)
+
+## Project Structure
+
+```
+.
+├── app                     # Main application package
+│   ├── api                 # API routes and endpoint definitions
+│   │   └── routes          # API route handlers
+│   ├── core                # Core application components
+│   ├── dependencies        # Dependency injection components
+│   ├── models              # SQLAlchemy database models
+│   ├── schemas             # Pydantic schemas for request/response validation
+│   └── services            # Business logic services
+├── migrations              # Alembic database migrations
+│   └── versions            # Migration version scripts
+├── storage                 # Storage directory for SQLite database
+│   └── db                  # Database files
+├── alembic.ini             # Alembic configuration
+├── main.py                 # Application entry point
+└── requirements.txt        # Python dependencies
+```
+
+## API Routes
+
+### Health Check
+- `GET /health` - Check API health status
+
+### Products
+- `GET /api/v1/products` - List all products (with optional filtering)
+- `GET /api/v1/products/{product_id}` - Get a specific product by ID
+- `POST /api/v1/products` - Create a new product
+- `PUT /api/v1/products/{product_id}` - Update an existing product
+- `DELETE /api/v1/products/{product_id}` - Delete a product
+
+### Categories
+- `GET /api/v1/categories` - List all categories
+- `GET /api/v1/categories/{category_id}` - Get a specific category by ID
+- `GET /api/v1/categories/{category_id}/products` - Get a category with its products
+- `POST /api/v1/categories` - Create a new category
+- `PUT /api/v1/categories/{category_id}` - Update an existing category
+- `DELETE /api/v1/categories/{category_id}` - Delete a category
+
+## Installation
+
+1. Clone the repository
+2. Install dependencies:
+   ```bash
+   pip install -r requirements.txt
+   ```
+3. Apply migrations to create the database schema:
+   ```bash
+   alembic upgrade head
+   ```
+
+## Running the Application
+
+```bash
+uvicorn main:app --reload
+```
+
+The API will be available at `http://localhost:8000`
+
+## API Documentation
+
+- Swagger UI: `http://localhost:8000/docs`
+- ReDoc: `http://localhost:8000/redoc`
+
+## Database Schema
+
+### Product
+- id: Integer (Primary Key)
+- name: String
+- description: Text (Optional)
+- price: Float
+- stock: Integer
+- image_url: String (Optional)
+- anime_title: String (Optional)
+- character_name: String (Optional)
+- created_at: DateTime
+- updated_at: DateTime
+- categories: Many-to-Many relationship with Category
+
+### Category
+- id: Integer (Primary Key)
+- name: String (Unique)
+- description: Text (Optional)
+- created_at: DateTime
+- updated_at: DateTime
+- products: Many-to-Many relationship with Product

alembic.ini

@@ -0,0 +1,83 @@
+[alembic]
+# path to migration scripts
+script_location = migrations
+
+# template used to generate migration files
+file_template = %%(year)d%%(month).2d%%(day).2d_%%(hour).2d%%(minute).2d%%(second).2d_%%(slug)s
+
+# timezone to use when rendering the date
+# within the migration file as well as the filename.
+# string value is passed to dateutil.tz.gettz()
+timezone = UTC
+
+# max length of characters to apply to the
+# "slug" field
+truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+sourceless = false
+
+# version location specification; this defaults
+# to migrations/versions. When using multiple version
+# directories, initial revisions must be specified with --version-path
+version_locations = %(here)s/migrations/versions
+
+# the output encoding used when revision files
+# are written from script.py.mako
+output_encoding = utf-8
+
+# SQLite URL example
+sqlalchemy.url = sqlite:////app/storage/db/db.sqlite
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts. See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, 
+# against the entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

app/api/routes/categories.py

@@ -0,0 +1,101 @@
+from typing import List
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.dependencies.db import get_db
+from app.schemas.category import (
+    CategoryCreate,
+    CategoryResponse,
+    CategoryUpdate,
+    CategoryWithProducts,
+)
+from app.services import category as category_service
+
+router = APIRouter(prefix="/categories")
+
+
+@router.get("", response_model=List[CategoryResponse], summary="Get all categories")
+async def get_categories(db: AsyncSession = Depends(get_db)):
+    """Get all categories."""
+    categories = await category_service.get_categories(db)
+    return categories
+
+
+@router.get(
+    "/{category_id}", response_model=CategoryResponse, summary="Get a category by ID"
+)
+async def get_category(category_id: int, db: AsyncSession = Depends(get_db)):
+    """Get a category by ID."""
+    db_category = await category_service.get_category(db, category_id)
+    if db_category is None:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"Category with ID {category_id} not found",
+        )
+    return db_category
+
+
+@router.get(
+    "/{category_id}/products",
+    response_model=CategoryWithProducts,
+    summary="Get a category with its products",
+)
+async def get_category_with_products(
+    category_id: int, db: AsyncSession = Depends(get_db)
+):
+    """Get a category with its related products."""
+    db_category = await category_service.get_category_with_products(db, category_id)
+    if db_category is None:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"Category with ID {category_id} not found",
+        )
+    return db_category
+
+
+@router.post(
+    "",
+    response_model=CategoryResponse,
+    status_code=status.HTTP_201_CREATED,
+    summary="Create a new category",
+)
+async def create_category(category: CategoryCreate, db: AsyncSession = Depends(get_db)):
+    """Create a new category."""
+    return await category_service.create_category(db, category)
+
+
+@router.put(
+    "/{category_id}", response_model=CategoryResponse, summary="Update a category"
+)
+async def update_category(
+    category_id: int,
+    category_update: CategoryUpdate,
+    db: AsyncSession = Depends(get_db),
+):
+    """Update an existing category."""
+    db_category = await category_service.get_category(db, category_id)
+    if db_category is None:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"Category with ID {category_id} not found",
+        )
+    return await category_service.update_category(db, db_category, category_update)
+
+
+@router.delete(
+    "/{category_id}",
+    status_code=status.HTTP_204_NO_CONTENT,
+    response_model=None,
+    summary="Delete a category",
+)
+async def delete_category(category_id: int, db: AsyncSession = Depends(get_db)):
+    """Delete a category."""
+    db_category = await category_service.get_category(db, category_id)
+    if db_category is None:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"Category with ID {category_id} not found",
+        )
+    await category_service.delete_category(db, db_category)
+    return None

app/api/routes/health.py

@@ -0,0 +1,15 @@
+from fastapi import APIRouter, Depends
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.dependencies.db import get_db
+
+router = APIRouter()
+
+
+@router.get("/health", summary="Health check endpoint")
+async def health_check(db: AsyncSession = Depends(get_db)):
+    """
+    Health check endpoint that verifies the service is running
+    and can connect to the database.
+    """
+    return {"status": "healthy", "database": "connected"}

app/api/routes/products.py

@@ -0,0 +1,91 @@
+from typing import List, Optional
+
+from fastapi import APIRouter, Depends, HTTPException, Query, status
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.dependencies.db import get_db
+from app.schemas.product import ProductCreate, ProductResponse, ProductUpdate
+from app.services import product as product_service
+
+router = APIRouter(prefix="/products")
+
+
+@router.get(
+    "",
+    response_model=List[ProductResponse],
+    summary="Get all products",
+    description="Retrieve all products with optional filtering",
+)
+async def get_products(
+    skip: int = 0,
+    limit: int = 100,
+    anime_title: Optional[str] = Query(None, description="Filter by anime title"),
+    character_name: Optional[str] = Query(None, description="Filter by character name"),
+    db: AsyncSession = Depends(get_db),
+):
+    """Get all products with optional filtering."""
+    products = await product_service.get_products(
+        db,
+        skip=skip,
+        limit=limit,
+        anime_title=anime_title,
+        character_name=character_name,
+    )
+    return products
+
+
+@router.get(
+    "/{product_id}", response_model=ProductResponse, summary="Get a product by ID"
+)
+async def get_product(product_id: int, db: AsyncSession = Depends(get_db)):
+    """Get a product by ID."""
+    db_product = await product_service.get_product(db, product_id)
+    if db_product is None:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"Product with ID {product_id} not found",
+        )
+    return db_product
+
+
+@router.post(
+    "",
+    response_model=ProductResponse,
+    status_code=status.HTTP_201_CREATED,
+    summary="Create a new product",
+)
+async def create_product(product: ProductCreate, db: AsyncSession = Depends(get_db)):
+    """Create a new product."""
+    return await product_service.create_product(db, product)
+
+
+@router.put("/{product_id}", response_model=ProductResponse, summary="Update a product")
+async def update_product(
+    product_id: int, product_update: ProductUpdate, db: AsyncSession = Depends(get_db)
+):
+    """Update an existing product."""
+    db_product = await product_service.get_product(db, product_id)
+    if db_product is None:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"Product with ID {product_id} not found",
+        )
+    return await product_service.update_product(db, db_product, product_update)
+
+
+@router.delete(
+    "/{product_id}",
+    status_code=status.HTTP_204_NO_CONTENT,
+    response_model=None,
+    summary="Delete a product",
+)
+async def delete_product(product_id: int, db: AsyncSession = Depends(get_db)):
+    """Delete a product."""
+    db_product = await product_service.get_product(db, product_id)
+    if db_product is None:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"Product with ID {product_id} not found",
+        )
+    await product_service.delete_product(db, db_product)
+    return None

app/core/config.py

@@ -0,0 +1,24 @@
+from pathlib import Path
+
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    PROJECT_NAME: str = "Anime Merchandise Catalog API"
+    PROJECT_DESCRIPTION: str = "A simple API for managing anime merchandise catalog"
+    PROJECT_VERSION: str = "0.1.0"
+    API_V1_STR: str = "/api/v1"
+    DEBUG: bool = False
+
+    # Database
+    DB_DIR: Path = Path("/app") / "storage" / "db"
+    SQLALCHEMY_DATABASE_URL: str = f"sqlite:///{DB_DIR}/db.sqlite"
+
+    class Config:
+        env_file = ".env"
+
+
+settings = Settings()
+
+# Ensure DB directory exists
+settings.DB_DIR.mkdir(parents=True, exist_ok=True)

app/dependencies/db.py

@@ -0,0 +1,30 @@
+from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine
+from sqlalchemy.orm import sessionmaker
+
+from app.core.config import settings
+
+# Create async engine
+engine = create_async_engine(
+    settings.SQLALCHEMY_DATABASE_URL.replace("sqlite:///", "sqlite+aiosqlite:///"),
+    connect_args={"check_same_thread": False},
+)
+
+# Create async session
+async_session = sessionmaker(
+    engine,
+    class_=AsyncSession,
+    expire_on_commit=False,
+    autocommit=False,
+    autoflush=False,
+)
+
+
+async def get_db() -> AsyncSession:
+    """
+    Dependency for getting an async database session.
+    """
+    async with async_session() as session:
+        try:
+            yield session
+        finally:
+            await session.close()

app/models/__init__.py

@@ -0,0 +1,5 @@
+from app.models.base import Base
+from app.models.product import Product, product_category
+from app.models.category import Category
+
+__all__ = ["Base", "Product", "Category", "product_category"]

app/models/base.py

@@ -0,0 +1,19 @@
+from datetime import datetime
+
+from sqlalchemy import Column, DateTime, Integer
+from sqlalchemy.ext.declarative import declared_attr
+from sqlalchemy.orm import DeclarativeBase
+
+
+class Base(DeclarativeBase):
+    """Base class for SQLAlchemy models."""
+
+    @declared_attr.directive
+    def __tablename__(cls) -> str:
+        return cls.__name__.lower()
+
+    id = Column(Integer, primary_key=True, index=True)
+    created_at = Column(DateTime, default=datetime.utcnow, nullable=False)
+    updated_at = Column(
+        DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False
+    )

app/models/category.py

@@ -0,0 +1,20 @@
+from sqlalchemy import Column, String, Text
+from sqlalchemy.orm import relationship
+
+from app.models.base import Base
+from app.models.product import product_category
+
+
+class Category(Base):
+    """Model for anime merchandise categories."""
+
+    name = Column(String(100), nullable=False, unique=True, index=True)
+    description = Column(Text, nullable=True)
+
+    # Relationships
+    products = relationship(
+        "Product", secondary=product_category, back_populates="categories"
+    )
+
+    def __repr__(self):
+        return f"<Category {self.name}>"

app/models/product.py

@@ -0,0 +1,32 @@
+from sqlalchemy import Column, String, Integer, Float, Text, ForeignKey, Table
+from sqlalchemy.orm import relationship
+
+from app.models.base import Base
+
+# Association table for the many-to-many relationship between Product and Category
+product_category = Table(
+    "product_category",
+    Base.metadata,
+    Column("product_id", Integer, ForeignKey("product.id"), primary_key=True),
+    Column("category_id", Integer, ForeignKey("category.id"), primary_key=True),
+)
+
+
+class Product(Base):
+    """Model for anime merchandise products."""
+
+    name = Column(String(255), nullable=False, index=True)
+    description = Column(Text, nullable=True)
+    price = Column(Float, nullable=False)
+    stock = Column(Integer, default=0, nullable=False)
+    image_url = Column(String(255), nullable=True)
+    anime_title = Column(String(255), nullable=True, index=True)
+    character_name = Column(String(255), nullable=True, index=True)
+
+    # Relationships
+    categories = relationship(
+        "Category", secondary=product_category, back_populates="products"
+    )
+
+    def __repr__(self):
+        return f"<Product {self.name}>"

app/schemas/__init__.py

@@ -0,0 +1,29 @@
+from app.schemas.product import (
+    ProductBase,
+    ProductCreate,
+    ProductUpdate,
+    ProductResponse,
+    CategoryInProduct,
+)
+from app.schemas.category import (
+    CategoryBase,
+    CategoryCreate,
+    CategoryUpdate,
+    CategoryResponse,
+    CategoryWithProducts,
+    ProductInCategory,
+)
+
+__all__ = [
+    "ProductBase",
+    "ProductCreate",
+    "ProductUpdate",
+    "ProductResponse",
+    "CategoryInProduct",
+    "CategoryBase",
+    "CategoryCreate",
+    "CategoryUpdate",
+    "CategoryResponse",
+    "CategoryWithProducts",
+    "ProductInCategory",
+]

app/schemas/category.py

@@ -0,0 +1,52 @@
+from typing import List, Optional
+
+from pydantic import BaseModel
+
+
+class CategoryBase(BaseModel):
+    """Base schema for category data."""
+
+    name: str
+    description: Optional[str] = None
+
+
+class CategoryCreate(CategoryBase):
+    """Schema for creating a new category."""
+
+    pass
+
+
+class CategoryUpdate(BaseModel):
+    """Schema for updating a category."""
+
+    name: Optional[str] = None
+    description: Optional[str] = None
+
+
+class ProductInCategory(BaseModel):
+    """Schema for product data in category responses."""
+
+    id: int
+    name: str
+    price: float
+
+    class Config:
+        from_attributes = True
+
+
+class CategoryResponse(CategoryBase):
+    """Schema for category responses."""
+
+    id: int
+
+    class Config:
+        from_attributes = True
+
+
+class CategoryWithProducts(CategoryResponse):
+    """Schema for category with related products."""
+
+    products: List[ProductInCategory] = []
+
+    class Config:
+        from_attributes = True

app/schemas/product.py

@@ -0,0 +1,54 @@
+from typing import List, Optional
+
+from pydantic import BaseModel, Field, HttpUrl
+
+
+class ProductBase(BaseModel):
+    """Base schema for product data."""
+
+    name: str
+    description: Optional[str] = None
+    price: float = Field(gt=0)
+    stock: int = Field(ge=0, default=0)
+    image_url: Optional[HttpUrl] = None
+    anime_title: Optional[str] = None
+    character_name: Optional[str] = None
+
+
+class ProductCreate(ProductBase):
+    """Schema for creating a new product."""
+
+    category_ids: List[int] = []
+
+
+class ProductUpdate(BaseModel):
+    """Schema for updating a product."""
+
+    name: Optional[str] = None
+    description: Optional[str] = None
+    price: Optional[float] = Field(gt=0, default=None)
+    stock: Optional[int] = Field(ge=0, default=None)
+    image_url: Optional[HttpUrl] = None
+    anime_title: Optional[str] = None
+    character_name: Optional[str] = None
+    category_ids: Optional[List[int]] = None
+
+
+class CategoryInProduct(BaseModel):
+    """Schema for category data in product responses."""
+
+    id: int
+    name: str
+
+    class Config:
+        from_attributes = True
+
+
+class ProductResponse(ProductBase):
+    """Schema for product responses."""
+
+    id: int
+    categories: List[CategoryInProduct] = []
+
+    class Config:
+        from_attributes = True

app/services/category.py

@@ -0,0 +1,60 @@
+from typing import List, Optional
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy.orm import selectinload
+
+from app.models.category import Category
+from app.schemas.category import CategoryCreate, CategoryUpdate
+
+
+async def get_categories(db: AsyncSession) -> List[Category]:
+    """Get all categories."""
+    result = await db.execute(select(Category))
+    return result.scalars().all()
+
+
+async def get_category(db: AsyncSession, category_id: int) -> Optional[Category]:
+    """Get a category by ID."""
+    return await db.get(Category, category_id)
+
+
+async def get_category_with_products(
+    db: AsyncSession, category_id: int
+) -> Optional[Category]:
+    """Get a category with related products."""
+    query = (
+        select(Category)
+        .where(Category.id == category_id)
+        .options(selectinload(Category.products))
+    )
+    result = await db.execute(query)
+    return result.scalar_one_or_none()
+
+
+async def create_category(db: AsyncSession, category: CategoryCreate) -> Category:
+    """Create a new category."""
+    db_category = Category(**category.model_dump())
+    db.add(db_category)
+    await db.commit()
+    await db.refresh(db_category)
+    return db_category
+
+
+async def update_category(
+    db: AsyncSession, db_category: Category, category_update: CategoryUpdate
+) -> Category:
+    """Update a category."""
+    update_data = category_update.model_dump(exclude_unset=True)
+    for field, value in update_data.items():
+        setattr(db_category, field, value)
+
+    await db.commit()
+    await db.refresh(db_category)
+    return db_category
+
+
+async def delete_category(db: AsyncSession, db_category: Category) -> None:
+    """Delete a category."""
+    await db.delete(db_category)
+    await db.commit()

app/services/product.py

@@ -0,0 +1,100 @@
+from typing import List, Optional
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy.orm import selectinload
+
+from app.models.category import Category
+from app.models.product import Product
+from app.schemas.product import ProductCreate, ProductUpdate
+
+
+async def get_products(
+    db: AsyncSession,
+    skip: int = 0,
+    limit: int = 100,
+    anime_title: Optional[str] = None,
+    character_name: Optional[str] = None,
+) -> List[Product]:
+    """Get all products with optional filtering."""
+    query = select(Product).options(selectinload(Product.categories))
+
+    if anime_title:
+        query = query.filter(Product.anime_title == anime_title)
+
+    if character_name:
+        query = query.filter(Product.character_name == character_name)
+
+    query = query.offset(skip).limit(limit)
+    result = await db.execute(query)
+    return result.scalars().all()
+
+
+async def get_product(db: AsyncSession, product_id: int) -> Optional[Product]:
+    """Get a product by ID with its categories."""
+    query = (
+        select(Product)
+        .where(Product.id == product_id)
+        .options(selectinload(Product.categories))
+    )
+    result = await db.execute(query)
+    return result.scalar_one_or_none()
+
+
+async def create_product(db: AsyncSession, product: ProductCreate) -> Product:
+    """Create a new product with optional category associations."""
+    # Extract category_ids from the schema
+    category_ids = product.category_ids
+    product_data = product.model_dump(exclude={"category_ids"})
+
+    # Create the product
+    db_product = Product(**product_data)
+
+    # Add categories if provided
+    if category_ids:
+        categories = await get_categories_by_ids(db, category_ids)
+        db_product.categories = categories
+
+    db.add(db_product)
+    await db.commit()
+    await db.refresh(db_product)
+    return db_product
+
+
+async def update_product(
+    db: AsyncSession, db_product: Product, product_update: ProductUpdate
+) -> Product:
+    """Update a product and its category associations."""
+    # Extract category_ids from the schema if present
+    update_data = product_update.model_dump(exclude_unset=True)
+    category_ids = update_data.pop("category_ids", None)
+
+    # Update product fields
+    for field, value in update_data.items():
+        setattr(db_product, field, value)
+
+    # Update categories if provided
+    if category_ids is not None:
+        categories = await get_categories_by_ids(db, category_ids)
+        db_product.categories = categories
+
+    await db.commit()
+    await db.refresh(db_product)
+    return db_product
+
+
+async def delete_product(db: AsyncSession, db_product: Product) -> None:
+    """Delete a product."""
+    await db.delete(db_product)
+    await db.commit()
+
+
+async def get_categories_by_ids(
+    db: AsyncSession, category_ids: List[int]
+) -> List[Category]:
+    """Helper function to get categories by their IDs."""
+    if not category_ids:
+        return []
+
+    result = await db.execute(select(Category).where(Category.id.in_(category_ids)))
+    return result.scalars().all()

main.py

@@ -0,0 +1,21 @@
+import uvicorn
+from fastapi import FastAPI
+
+from app.api.routes import health, products, categories
+from app.core.config import settings
+
+app = FastAPI(
+    title=settings.PROJECT_NAME,
+    description=settings.PROJECT_DESCRIPTION,
+    version=settings.PROJECT_VERSION,
+    docs_url="/docs",
+    redoc_url="/redoc",
+)
+
+# Include routers
+app.include_router(health.router, tags=["health"])
+app.include_router(products.router, prefix="/api/v1", tags=["products"])
+app.include_router(categories.router, prefix="/api/v1", tags=["categories"])
+
+if __name__ == "__main__":
+    uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)

migrations/env.py

@@ -0,0 +1,89 @@
+import asyncio
+from logging.config import fileConfig
+
+from sqlalchemy import pool
+from sqlalchemy.engine import Connection
+from sqlalchemy.ext.asyncio import async_engine_from_config
+
+from alembic import context
+from app.models.base import Base
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+target_metadata = Base.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+        render_as_batch=True,  # Enables batch mode for SQLite
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def do_run_migrations(connection: Connection) -> None:
+    context.configure(
+        connection=connection,
+        target_metadata=target_metadata,
+        render_as_batch=connection.dialect.name
+        == "sqlite",  # Enables batch mode for SQLite
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_migrations_online() -> None:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = async_engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    async with connectable.connect() as connection:
+        await connection.run_sync(do_run_migrations)
+
+    await connectable.dispose()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    asyncio.run(run_migrations_online())

migrations/script.py.mako

@@ -0,0 +1,26 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}

migrations/versions/20231216_000000_initial_schema.py

@@ -0,0 +1,87 @@
+"""initial schema
+
+Revision ID: 20231216_000000
+Revises:
+Create Date: 2023-12-16 00:00:00.000000
+
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = "20231216_000000"
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Create category table
+    op.create_table(
+        "category",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("created_at", sa.DateTime(), nullable=False),
+        sa.Column("updated_at", sa.DateTime(), nullable=False),
+        sa.Column("name", sa.String(length=100), nullable=False),
+        sa.Column("description", sa.Text(), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index(op.f("ix_category_id"), "category", ["id"], unique=False)
+    op.create_index(op.f("ix_category_name"), "category", ["name"], unique=True)
+
+    # Create product table
+    op.create_table(
+        "product",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("created_at", sa.DateTime(), nullable=False),
+        sa.Column("updated_at", sa.DateTime(), nullable=False),
+        sa.Column("name", sa.String(length=255), nullable=False),
+        sa.Column("description", sa.Text(), nullable=True),
+        sa.Column("price", sa.Float(), nullable=False),
+        sa.Column("stock", sa.Integer(), nullable=False),
+        sa.Column("image_url", sa.String(length=255), nullable=True),
+        sa.Column("anime_title", sa.String(length=255), nullable=True),
+        sa.Column("character_name", sa.String(length=255), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index(
+        op.f("ix_product_anime_title"), "product", ["anime_title"], unique=False
+    )
+    op.create_index(
+        op.f("ix_product_character_name"), "product", ["character_name"], unique=False
+    )
+    op.create_index(op.f("ix_product_id"), "product", ["id"], unique=False)
+    op.create_index(op.f("ix_product_name"), "product", ["name"], unique=False)
+
+    # Create product_category association table
+    op.create_table(
+        "product_category",
+        sa.Column("product_id", sa.Integer(), nullable=False),
+        sa.Column("category_id", sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["category_id"],
+            ["category.id"],
+        ),
+        sa.ForeignKeyConstraint(
+            ["product_id"],
+            ["product.id"],
+        ),
+        sa.PrimaryKeyConstraint("product_id", "category_id"),
+    )
+
+
+def downgrade() -> None:
+    # Drop tables in reverse order
+    op.drop_table("product_category")
+    op.drop_index(op.f("ix_product_name"), table_name="product")
+    op.drop_index(op.f("ix_product_id"), table_name="product")
+    op.drop_index(op.f("ix_product_character_name"), table_name="product")
+    op.drop_index(op.f("ix_product_anime_title"), table_name="product")
+    op.drop_table("product")
+    op.drop_index(op.f("ix_category_name"), table_name="category")
+    op.drop_index(op.f("ix_category_id"), table_name="category")
+    op.drop_table("category")

requirements.txt

@@ -0,0 +1,12 @@
+fastapi>=0.100.0
+uvicorn>=0.22.0
+sqlalchemy>=2.0.0
+alembic>=1.11.1
+pydantic>=2.0.0
+pydantic-settings>=2.0.0
+python-dotenv>=1.0.0
+aiosqlite>=0.19.0
+ruff>=0.0.280
+httpx>=0.24.1
+pytest>=7.4.0
+pytest-asyncio>=0.21.1