New extension: Optimistic Locking (Redis)

Announcements
1

Hey everyone!

The next extension for the Redis challenge is now live: Optimistic Locking.

Optimistic Locking lets your Redis server handle concurrent updates safely by ensuring a transaction only succeeds if the data hasn’t changed since it was read.

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By the end of this extension, your Redis implementation will support:

  • Monitoring keys for changes using WATCH
  • Aborting transactions if watched keys change before EXEC
  • Watching multiple keys at once
  • Handling missing keys correctly
  • Clearing watches with UNWATCH
  • Automatically unwatching on EXEC and DISCARD

Here’s the stage breakdown:

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Please give this a try and let us know how it can be improved! @UdeshyaDhungana (author of this extension) and I will be available here to help out with any tester or instruction-related issues.