New extension idea for voting: Optimistic locking (Redis)

We’ve got a new extension idea for you to vote on: Optimistic Locking for Redis.

Thanks to everyone who wrote in suggesting this! You can now vote on this here :

This extension will build upon the stages in the “Transactions” extension.

Here’s the idea description for reference:

In this challenge extension you’ll add support for optimistic locking to your Redis implementation.

Along the way you’ll learn about the WATCH command, how it interacts with transactions and more.