Wanted to start a convo with @johnonolan@mastodon.xyz from Ghost and @angus@socialhub.activitypub.rocks from Discourse about AP resource discovery.
A common use case from fediverse users is to be linked out to a site, and attempt to "bring it in" to their local instance/app of choice. This is done by taking the browser URL and pasting it into their site/app's search bar, or equivalent.
For example:
For context, last night I discovered that Ghost's latest blog post didn't make it into NodeBB, due to a bug on my end. I attempted to resolve it via URL but there was no AP resource at that URL. I ended up having to query the instance actor (which I happened to already know), and looking at the outbox.
To my knowledge there is no way to find a Discourse post or topic's AP resource ID without having a local Discourse account.
Would it be possible for you to send back an HTTP 301 Moved Permanently (or similar) if the Accepts header contains one of the AP-related types?
N.B. This probably has some overlap with @evan@cosocial.ca's HTTP Discovery Task Force, a 308 is recommended there.
@rimu@piefed.social yes, that's right. I'm specifically referring to object urls though, which tend to be more user facing.
You could save yourself some hassle and make urls and IDs the same value. But you do you :)