Automatically ban qBittorrent peers, based on client name, with JavaScript (Deno)

ban.ts

const endpoint = 'http://127.0.0.1:9876';
const mainDataUrl = new URL('/api/v2/sync/maindata', endpoint);
const torrentPeersUrl = new URL('/api/v2/sync/torrentPeers', endpoint);
const banPeers = new URL('/api/v2/transfer/banPeers', endpoint);

const f = async () => {
    const r = await fetch(mainDataUrl);
    const d = await r.json() as { torrents: {[hash: string]: { upspeed: number }} };
    for (const [hash, _o] of Object.entries(d.torrents).filter(([_hash, { upspeed }]) => upspeed != 0)) {
        torrentPeersUrl.search = `?hash=${hash}`;
        const r = await fetch(torrentPeersUrl);
        const d = await r.json() as { peers: {[socket: string]: {up_speed: number, client: string}} };
        const { peers } = d;
        for (const [socket, _o] of Object.entries(peers).filter(
            ([socket, { up_speed, client }]) => up_speed != 0 && (
                client.startsWith('hp/torrent') /* ||
                client.startsWith('hp/torrent') */
            )
        )) {
            const q = await fetch(banPeers, {
                body: new URLSearchParams({ hash, peers: socket }).toString(),
                method: "POST",
                headers: {
                    'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
                },
            });
            console.log(`Banning ${socket}. Status: ${q.status} ${await q.text()}`);
        }
    }
};

let running = true;

Deno.addSignalListener("SIGINT", () => { running = false; });

const wait = (ms: number) => new Promise(
    (resolve, _reject) => {
        setTimeout(() => { resolve(ms); }, ms);
    }
);

while (running) {
    const interval = await wait(1000);
    try {
        await f();
    } catch (e) {
        if (e instanceof Error) {
            console.log(e.message);
        }
    }
    await interval;
}