Covid API mit Datum

covid.py

import falcon
from json import load, dumps
import datetime

with open('db.json') as f:
    db = load(f)["records"]

def trans(r):
    return {
        "Land": r["geoId"],
        "Datum": r["dateRep"],
        "Fälle": r["cases"],
    }

db = list(map( trans,db))

def alle(f):
    return lambda y: all([ x(y) for x in f])

class CovidApi:
    def on_get(self, req, resp):
        datum = req.params.get("datum", None)
        land = req.params.get("land", None)

        filters = []        
        if land:
            filters.append(lambda r: r["Land"] == land)
        if datum:
            filters.append(lambda r: r["Datum"] == datum)

        resp.media = { 
            "date": str(datetime.datetime.now()) , 
            "data": list(filter( alle(filters), db)) 
        }

api = falcon.API()
api.add_route('/covid/', CovidApi())