redis retrieve data at suscribe when key expire

Question

I have the following code, to handle when a key expire in redis:

r.config_set('notify-keyspace-events', 'Ex')
    pubsub.psubscribe(**{"__keyevent@0__:expired": event_handler})
    pubsub.run_in_thread(sleep_time=0.01)

def event_handler(msg):
    try:
        print(msg)
        key = msg["data"].decode("utf-8")
        print(key)
    except Exception as e:
        print(e)

The problem is that I am only getting the key, and not the value from the expired key.

Is there anyway of get that data?

Thanks

No. There's no such option at this moment. – sazzad Jun 10 '22 at 23:47 — sazzad, Jun 10 '22 at 23:47

score 0 · Answer 1 · answered Feb 16 '23 at 22:37

0

create another key, like "mykey.shadow" which actually has the expiration. When it expires, retrieve the real key and the stored value and then delete it.

answered Feb 16 '23 at 22:37

1stSolo

1

Your answer could be improved with additional supporting information. Please [edit] to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – xlmaster Feb 21 '23 at 07:07

redis retrieve data at suscribe when key expire

1 Answers1