PartyKit vs Pusher

// server.ts (PartyKit server)
import type * as Party from 'partykit/server';

export default class MyServer implements Party.Server {
  constructor(readonly room: Party.Room) {}

  onMessage(message: string, sender: Party.Connection) {
    this.room.broadcast(message, [sender.id]);
  }
}

// Server (Node.js)
import Pusher from 'pusher';

const pusher = new Pusher({
  appId: process.env.PUSHER_APP_ID!,
  key: process.env.PUSHER_KEY!,
  secret: process.env.PUSHER_SECRET!,
  cluster: 'us2',
  useTLS: true,
});

await pusher.trigger('my-channel', 'my-event', { message: 'Hello!' });

// Client
import Pusher from 'pusher-js';
const client = new Pusher(process.env.NEXT_PUBLIC_PUSHER_KEY!, { cluster: 'us2' });
const channel = client.subscribe('my-channel');
channel.bind('my-event', (data: any) => console.log(data));