> ## Documentation Index
> Fetch the complete documentation index at: https://nexus.whatsgood.dog/llms.txt
> Use this file to discover all available pages before exploring further.

# Websockets

> Learn how to configure Nexus WebSocket support

## Introduction

`Nexus` has experimental support for WebSockets. This feature is currently only available for NodeJS. Cloudflare Workers currently only support http requests. Below is the minimal setup required to enable WebSocket support in your Nexus server.

```typescript theme={null}
import {
  Nexus,
  NodeProvider,
  CHAIN,
} from "@whatsgood/nexus";

const alchemyEthMainnetWsProvider = new NodeProvider({
  name: "alchemy-eth-mainnet-ws",
  chain: CHAIN.ETHEREUM_MAINNET,
  url: process.env.ALCHEMY_ETH_MAINNET_WS_URL,
});

const nexus = Nexus.create({
  nodeProviders: [alchemyEthMainnetWsProvider],
  //...
});

const server = createServer(nexus);
nexus.ws(server);

server.listen(nexus.port, () => {
  nexus.logger.info(`🚀 Server ready at http://localhost:${nexus.port}`);
});

```