key expiration support for vercel-kv driver

[azophy]

Describe the feature

From what I found, current vercel-kv driver for unstorage does not provide ttl option. Meanwhile the @vercel/kv library does provide this option.

https://vercel.com/docs/storage/vercel-kv/kv-reference#set-example

I'm trying to follow the interface used by existing redis driver and implement it in vercel-kv driver. If there are no one working on this, I'm willing to help

my WIP: https://github.com/azophy/unstorage

Additional information

• Would you be willing to help implement this feature?

[pi0]

PR is welcome 💯