shadowfacts.net/lib/activitypub/followers.ts

import express, { Router } from "express";
import {getConnection} from "typeorm";
import Actor from "../entity/Actor";

const domain = process.env.DOMAIN;

export default function followers(router: Router) {
	router.get("/ap/actor/followers", async (req, res) => {
		const followers = await getConnection().getRepository(Actor).find({where: {isFollower: true}});
		res.json({
			"@context": [
				"https://www.w3.org/ns/activitystreams"
			],
			"type": "OrderedCollection",
			"id": `https://${domain}/ap/actor/followers`,
			"totalItems": followers.length,
			"items": followers.map(it => it.id)
		});
		res.end();
	});
}