@fedify/fedify@1.10.1

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An activity transformer that dehydrates the actor property of an activity so that it only contains the actor's URI. For example, suppose we have an activity like this:

import { Follow, Person } from "@fedify/fedify/vocab";
const input = new Follow({
  id: new URL("http://example.com/activities/1"),
  actor: new Person({
    id: new URL("http://example.com/actors/1"),
    name: "Alice",
    preferredUsername: "alice",
  }),
  object: new Person({
    id: new URL("http://example.com/actors/2"),
    name: "Bob",
    preferredUsername: "bob",
  }),
});

The result of applying this transformer would be:

import { Follow, Person } from "@fedify/fedify/vocab";
const output = new Follow({
  id: new URL("http://example.com/activities/1"),
  actor: new URL("http://example.com/actors/1"),
  object: new Person({
    id: new URL("http://example.com/actors/2"),
    name: "Bob",
    preferredUsername: "bob",
  }),
});

As some ActivityPub implementations like Threads fail to deal with inlined actor objects, this transformer can be used to work around this issue.