Enumerating all keys in a Redis database in Python is useful for debugging, administration, and maintenance tasks.
It's also used when you want to perform operations on all keys or a subset of keys in the datastore.
Here's how to get all keys from a Redis database using python's
In this code snippet, we're connecting to the Redis server, then using the
scan_iter() function to iteratively access each key in the database. Each key is printed to the console.
scan_iter()method for such cases as it doesn't block the server.
*Why should I avoid 'KEYS '?
'KEYS *' is a blocking operation that can cause performance issues especially with larger datasets. Use
scan_iter() instead which is non-blocking.
Can I filter keys when retrieving them?
Yes, you can use pattern matching inside
scan_iter(). For example,
scan_iter('user:*') will return all keys that start with 'user:'.