# 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, response_model=BookResponse) async def create_book(book_data: BookCreate, db: Session = Depends(get_db)): """ Create a new book in the database. Parameters: - book_data: BookCreate (Pydantic model with book data) Returns: - BookResponse (Pydantic model with book data and id) """ new_book = Book(**book_data.dict()) db.add(new_book) db.commit() db.refresh(new_book) return new_book ``` This endpoint defines a `POST` route at `/books` using the `@router.post` decorator. It takes a `book_data` parameter of type `BookCreate` (a Pydantic model representing the data needed to create a new book). The `db` parameter is a SQLAlchemy database session obtained using the `get_db` dependency. The endpoint function `create_book` does the following: 1. Creates a new `Book` model instance using the data from `book_data`. 2. Adds the new book instance to the database session. 3. Commits the changes to the database. 4. Refreshes the `new_book` instance to get the generated ID. 5. Returns the `new_book` instance as a `BookResponse` Pydantic model. The response status code is set to `HTTP_201_CREATED` to indicate successful creation of a new resource. The `response_model` parameter specifies that the response should be serialized using the `BookResponse` Pydantic model. Note that you will need to define the `Book`, `BookCreate`, and `BookResponse` models (or import them from the appropriate module) for this code to work correctly.