from fastapi import FastAPI
from isbnlib import meta

app = FastAPI()


@app.get('/')
async def root():
    return {"message": "Hello World"}

@app.post('/checkin/{isbn}')
async def checkin(isbn):
    return{"Checked in": isbn}

@app.get('/checkout/{isbn}')
async  def checkout(isbn):
    return{"Checked Out": isbn}

@app.put('/lookup/{isbn}')
async  def lookup(isbn):
    info = meta(isbn, service='Default')
    return{"Title": info['Title']}