# Entity: Book

from fastapi import APIRouter, Depends, HTTPException, status
from sqlalchemy.orm import Session
from app.api.db.database import get_db
# You'll need to add correct model and schema imports

router = APIRouter()

@router.post("/books", status_code=status.HTTP_201_CREATED)
async def create_book(
    book_data: BookSchema,  # Assuming BookSchema is the Pydantic model for book data
    db: Session = Depends(get_db)
):
    """
    Create a new book in the database.

    :param book_data: The book data to be saved.
    :param db: The database session.
    :return: The created book data.
    """
    book = Book(**book_data.dict())  # Assuming Book is the SQLAlchemy model
    db.add(book)
    db.commit()
    db.refresh(book)
    return book

```

This endpoint handles POST requests to the `/books` path. It expects the request body to contain the book data in the form of a `BookSchema` Pydantic model. The endpoint creates a new `Book` instance using the provided data, adds it to the database session, commits the changes, and returns the created book data.

Note that you'll need to import the appropriate `Book` model and `BookSchema` Pydantic model in your actual implementation.