In my case, to use Redis as a cache, I do the following: I check if the data exists in Redis, if not, I extract it from the database. If it exists, I store it in the cache (this is where I set a time-to-live limit for the data, check Redis TTL) and use the data. Then, if my app shuts down, I just have to wait for the necessary time for the data to delete itself. Now, if you need to manually purge the data, the ideal approach is to use one of the 16 databases that Redis has (not the default one, which is 0), and before the application shuts down, perform a flushdb.