books.py

from typing import Dict, List

from fastapi import FastAPI

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 {"book_title": "My favourite Book"}


@app.get("/books/{book_title}")
async def read_all_books(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 = [
        book for book in BOOKS if book.get("category").casefold() == category.casefold()
    ]
    return books_to_return


@app.get("/books/{book_author}/")
async def read_author_category_by_query(book_author: str, category: str) -> List[Dict]:
    book_to_return = [
        book
        for book in BOOKS
        if book.get("author").casefold() == book_author.casefold()
        and book.get("category").casefold() == category.casefold()
    ]
    return book_to_return