Getting Started

Installation

bun

bun add @zocket/core @zocket/server @zocket/client zod

npm

npm install @zocket/core @zocket/server @zocket/client zod

For React integration, also add @zocket/react:

bun add @zocket/react

1. Define an Actor

Actors are stateful units with typed methods, events, and lifecycle hooks.

chat.ts

import { z } from "zod";
import { actor, createApp } from "@zocket/core";

const ChatRoom = actor({
  state: z.object({
    messages: z.array(z.object({
      from: z.string(),
      text: z.string(),
    })).default([]),
  }),

  methods: {
    sendMessage: {
      input: z.object({ from: z.string(), text: z.string() }),
      handler: ({ state, input }) => {
        state.messages.push(input);
      },
    },
  },
});

export const app = createApp({ actors: { chat: ChatRoom } });

2. Serve It

server.ts

import { serve } from "@zocket/server/bun";
import { app } from "./chat";

const server = serve(app, { port: 3000 });
console.log(`Zocket on ws://localhost:${server.port}`);

3. Connect a Client

client.ts

import { createClient } from "@zocket/client";
import type { app } from "./chat";

const client = createClient<typeof app>({ url: "ws://localhost:3000" });

// Get a typed handle for a specific actor instance
const room = client.chat("general");

// Call methods — fully typed
await room.sendMessage({ from: "Alice", text: "Hello!" });

// Subscribe to state changes
room.state.subscribe((state) => {
  console.log("Messages:", state.messages);
});

// Clean up when done
room.meta.dispose();

4. Use with React

zocket.ts

import { createClient } from "@zocket/client";
import { createZocketReact } from "@zocket/react";
import type { app } from "./chat";

export const client = createClient<typeof app>({ url: "ws://localhost:3000" });
export const { ZocketProvider, useActor, useActorState } = createZocketReact<typeof app>();

App.tsx

import { ZocketProvider, useActor, useActorState, client } from "./zocket";

function Chat() {
  const room = useActor("chat", "general");
  const messages = useActorState(room, (s) => s.messages);

  return (
    <ul>
      {messages?.map((m, i) => (
        <li key={i}>{m.from}: {m.text}</li>
      ))}
    </ul>
  );
}

export function App() {
  return (
    <ZocketProvider client={client}>
      <Chat />
    </ZocketProvider>
  );
}

Next Steps

• Actors — full API for state, methods, events, and lifecycle hooks
• Middleware — auth, context enrichment, gating
• React Hooks — useActor, useActorState, useEvent
• Multiplayer Draw — complete example walkthrough