#ActivityPub developers: which of these HTTP caching headers does your software publish or consume?

[evan@cosocial.ca]

#ActivityPub developers: which of these HTTP caching headers does your software publish or consume?

#EvanPoll #poll

[james@bne.social]

@evan My systems export both Etag and Last-Modified. I have no idea how the computers looking at my stuff know which to prioritise, and typically on my browser I still need to refresh the page manually to see any changes. Caching really is quite hard.

[julian@activitypub.space]

@evan@cosocial.ca all four, but only for contexts. It's how NodeBB's topic synchronization logic works, although there isn't an FEP for it yet

[rimu@piefed.social]

Cache-Control and Vary

[evan@cosocial.ca]

@julian hmmm. With a reverse chron collection you can do pretty well with `totalItems` and the first item on the first page.

If there were net items added or deleted, `totalItems` will be different.

If the same number of items were added and deleted, the most recent item will be different.

So you can check synch with a couple of hits.