books.py

from fastapi import FastAPI
from fastapi import Body

app = FastAPI()


BOOKS = [
    {'title': "Title One", 'author': "Author One", 'category': "science"},
    {'title': "Title Two", 'author': "Author Two", 'category': "science"},
    {'title': "Title Three", 'author': "Author Three", 'category': "history"},
    {'title': "Title Four ", 'author': "Author Four", 'category': "math"},
    {'title': "Title Five", 'author': "Author Five", 'category': "math"},
    {'title': "Title Six", 'author': "Author Two", 'category': "math"},
]


@app.get("/books")
async def read_all_books():
    return BOOKS


@app.get('/books/{book_title}')
async def read_book(book_title: str):
    for book in BOOKS:
        if book.get('title').casefold() == book_title.casefold():
            return book


@app.get('/books/')
async def read_category_by_query(category: str):
    books_to_return = []
    for book in BOOKS:
        if book.get('category').casefold() == category.casefold():
            books_to_return.append(book)
    return books_to_return


@app.get('/books/{book_author}/')
async def read_author_category_by_query(book_author: str, category: str):
    books_to_return = []
    for book in BOOKS:
        if (
            book.get('author').casefold() == book_author.casefold()
            and book.get('category').casefold() == category.casefold()
        ):
            books_to_return.append(book)
    return books_to_return


@app.post('/books/create_book')
async def create(new_book=Body()):
    BOOKS.append(new_book)
    return new_book


@app.put('/books/update_book')
async def update_book(updated_book=Body()):
    for i in range(len(BOOKS)):
        if BOOKS[i].get('title').casefold() == updated_book.get('title').casefold():
            BOOKS[i] = updated_book
            return BOOKS[i]


@app.delete('/books/delete_book/{book_title}')
async def delete_book(book_title: str):
    for book in BOOKS:
        if book.get('title').casefold() == book_title.casefold():
            BOOKS.remove(book)
            return book