This project is part of the GoActivityPub library which helps with creating ActivityPub applications using the Go programming language.
It contains data types for most of the Activity Vocabulary and the ActivityPub extension. They are documented accordingly with annotations from these specifications.
You can find an expanded documentation about the whole library on SourceHut.
For discussions about the projects you can write to the discussions mailing list: ~mariusor/go-activitypub-discuss@lists.sr.ht
For patches and bug reports please use the dev mailing list: ~mariusor/go-activitypub-dev@lists.sr.ht
import vocab "github.com/go-ap/activitypub"follow:= vocab.Activity{
Type: vocab.FollowType,
Actor: vocab.IRI("https://example.com/alice"),
Object: vocab.IRI("https://example.com/janedoe"),
}The module contains helper functions which make it simpler to deal with the vocab.Item
interfaces and they come in two flavours: explicit OnXXX and ToXXX functions corresponding
to each type and, a generic pair of functions On[T] and To[T].
import (
"fmt"
vocab "github.com/go-ap/activitypub"
)
varit vocab.Item=...// an ActivityPub object unmarshaled from a requesterr:=vocab.OnActivity(it, func(act*vocab.Activity) error {
ifvocab.ContentManagementActivityTypes.Contains(act.Type) {
fmt.Printf("This is a Content Management type activity: %q", act.Type)
}
returnnil
})
err:=vocab.On[vocab.Activity](it, func(act*vocab.Activity) error {
ifvocab.ReactionsActivityTypes.Contains(act.Type) {
fmt.Printf("This is a Reaction type activity: %q", act.Type)
}
returnnil
})Before using the generic versions you should consider that they come with a pretty heavy performance penalty:
goos: linux
goarch: amd64
pkg: github.com/go-ap/activitypub
cpu: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
Benchmark_OnT_vs_On_T/OnObject-8 752387791 1.633 ns/op
Benchmark_OnT_vs_On_T/On_T_Object-8 4656264 261.8 ns/op
Benchmark_OnT_vs_On_T/OnActor-8 739833261 1.596 ns/op
Benchmark_OnT_vs_On_T/On_T_Actor-8 4035148 301.9 ns/op
Benchmark_OnT_vs_On_T/OnActivity-8 751173854 1.604 ns/op
Benchmark_OnT_vs_On_T/On_T_Activity-8 4062598 285.9 ns/op
Benchmark_OnT_vs_On_T/OnIntransitiveActivity-8 675824500 1.640 ns/op
Benchmark_OnT_vs_On_T/On_T_IntransitiveActivity-8 4372798 274.1 ns/op
PASS
ok github.com/go-ap/activitypub 11.350s