def put_book()

in bookstore/books/main.py [0:0]


def put_book(event):
    try:
        req = json.loads(event['body'])
        book = Book(
            title=req['title'],
            author=req['author'],
            publisher=req['publisher'],
            year=int(req['year'])
        ) 
        logger.debug(f"Inserting: {book}")
        session.add(book)
        session.commit()

        return {
            "statusCode": 200
        }
    except Exception as e:
        logger.debug(e)
        return {
            "statusCode": 500,
            "error": f"Error: {e}"
        }