import requests

from chalk import realtime

from chalk.client import ChalkClient

from chalk.features import feature, features

@features

class User:

id: int

name: str

fico_score: int = feature(max_staleness="30d")

@realtime

def get_fico_score(name: User.name) -> User.fico_score:

return requests.get("https://experian.com").json()["score"]

if __name__ == "__main__":

# You can force cache invalidation by specifying a

# maximum staleness of 0 seconds at the time of making the query:

ChalkClient().query(

input={User.id: 1, User.name: "Katherine Johnson"},

output=[User.fico_score],

# Cache busting is a special case of providing an override

# max-staleness. See `4_override_max_staleness.py` for more information.

staleness={User.fico_score: "0s"},

)