From 9002a45fa87b271162dc191591e87e4f0aeaa1e4 Mon Sep 17 00:00:00 2001 From: Shadowfacts Date: Sun, 22 Sep 2019 17:54:52 -0400 Subject: [PATCH] Add ActivityPub Resources blog post --- .../posts/2019-09-22-activitypub-resources.md | 34 +++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 site/posts/2019-09-22-activitypub-resources.md diff --git a/site/posts/2019-09-22-activitypub-resources.md b/site/posts/2019-09-22-activitypub-resources.md new file mode 100644 index 0000000..8b8315e --- /dev/null +++ b/site/posts/2019-09-22-activitypub-resources.md @@ -0,0 +1,34 @@ +``` +metadata.title = "ActivityPub Resources" +metadata.category = "activitypub" +metadata.date = "2019-09-22 17:50:42 -0400" +metadata.shortDesc = "A compilation of resources I found useful in learning/implementing ActivityPub." +``` + +This isn't really going to be a blog most, but more of a collection of tidbits and resources I found helpful in implenting the [ActivityPub integration](/meta/2019/reincarnation/#activity-pub) for the new version of my blog. + +This post was last updated on Sep 22, 2019. + + + +### Specs +- The [ActivityStreams 2.0 spec](https://www.w3.org/TR/activitystreams-core/) is important, as it's what ActivityPub is built on top of. +- Similarly, the [AS 2.0 Vocabulary](https://www.w3.org/TR/activitystreams-vocabulary/) defines all the objects and activities that AP actually uses in practice (and many more that it doesn't). +- The [ActivityPub spec](https://www.w3.org/TR/activitypub/) itself is quite useful, despite its many omissions. +- There's also [LitePub](https://litepub.social/litepub/), which has some extensions to AP. +- The least useful by far spec is [JSON-LD](https://www.w3.org/TR/json-ld/) which defines how to use JSON to represent linked data and objects graphs. AS2 and AP are both built on this, but if you're going for a simple implementation (or even a complex one), you can entirely ignore this and treat JSON-LD as plain old JSON objects. + +[This](https://tinysubversions.com/notes/reading-activitypub/) is also a helpful resource about how to go about reading the AP specification. + +### Actually Federating +- Gargron's blog posts on [implementing a basic AP server](https://blog.joinmastodon.org/2018/06/how-to-implement-a-basic-activitypub-server/) and [implementing HTTP signatures](https://blog.joinmastodon.org/2018/07/how-to-make-friends-and-verify-requests/) are good guides for how to actually get federating with other servers in the wild. +- [Lain's blog post](https://blog.soykaf.com/post/activity-pub-in-pleroma/) on some of the weird quirks of how ActivityPub actually gets used. +- [Kaniini's blog post](https://blog.dereferenced.org/federation-what-flows-where-and-why) about how data actually moves through the fediverse. + +### Reference Material +- I used the [Pleroma source code](https://git.pleroma.social/pleroma/pleroma/) a great deal when working on my implementation, mainly just because I'm familiar with Elixir. +- I'd also like to think [my own implementation](https://git.shadowfacts.net/shadowfacts/shadowfacts.net/src/branch/master/lib/activitypub) is fairly approachable (it's about 700 lines of not-too-complicated TypeScript). +- Ted Unangst has a collection of [sample data](https://jawn.tedunangst.com/a/R526ZQ49MbYt5J4KpR) which is useful for comparing how different implementations represent things in AP. + +### Other +- Ted Unangst also has his own [compilation of AP-related links](https://flak.tedunangst.com/post/ActivityPub-as-it-has-been-understood).