Expose expires/max_age in Cookies.set

[Garrett-R]

Feature Request

The current signature of Cookies.set could be updated to allow passing in expires. Or even max_age which is a bit more user-friendly.

Use Case

I have this test utility function:

from uuid import UUID
from fastapi.testclient import TestClient

_ONE_DAY_IN_SECONDS = 24 * 60 * 60

def set_cookie_in_test(test_client: TestClient,
                       cookie_key: str,
                       cookie_value: str | UUID,
                       path: str = '/',
                       max_age: int = _ONE_DAY_IN_SECONDS) -> None:
    cookies = test_client.cookies
    cookies.set(
        cookie_key,
        str(cookie_value),
        path=path,
        max_age=max_age,  # Not an accepted arg!
    )
    test_client.cookies = cookies

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In the meantime, here's a workaround.