Refreshing JWT

[ycd]

Is it possible to refresh tokens? In documentation, it provides an example of how to create a bearer token with a expire time but not how to refresh the token.

In flask it has a package for it: Flask-JWT-Extended

I looked up source code of FastAPI and Python-JOSE couldn't find anything.

[shidenko97]

As I can see - it's impossible now. But you can recreate token by the same data and it will work like update.

For example:

import datetime
from time import sleep

from jose import jwt
from jose.exceptions import ExpiredSignatureError


if __name__ == "__main__":

    data = {"bearer": "It's an example of bearer"}
    secret = "Secret key"
    expired = 5

    data["exp"] = datetime.datetime.utcnow() + datetime.timedelta(
        seconds=expired
    )

    token = jwt.encode(data, secret)

    print(token)

    sleep(expired + 1)

    try:
        decrypted = jwt.decode(token, secret)
    except ExpiredSignatureError:
        data["exp"] = datetime.datetime.utcnow() + datetime.timedelta(
            seconds=expired
        )
        token = jwt.encode(data, secret)

        print(token)

        decrypted = jwt.decode(token, secret)

    print(decrypted)

[tiangolo]

Thanks for the help @shidenko97 and thanks for closing the issue @ycd! 🍰

Sorry for the long delay! 🙈 I wanted to personally address each issue/PR and they piled up through time, but now I'm checking each one in order.