Typescript sdk subscribe event error on mainnet.

[KyrinCode]

Steps to Reproduce Issue

const { SuiClient, getFullnodeUrl, SuiHTTPTransport } = require("@mysten/sui.js/client")
const { WebSocket } = require('ws')

const client = new SuiClient({
	transport: new SuiHTTPTransport({
		url: getFullnodeUrl("mainnet"),
		WebSocketConstructor: WebSocket,
	}),
});

async function handleEvent() {
	const unsubscribe = await client.subscribeEvent({
		filter: {
			Package: '...',
		},
		onMessage(event) {
			console.log("event:", event)
		},
	})
}

handleEvent().catch((error) => {
    console.error(error)
    process.exitCode = 1
})

The exact same code works fine when the url is set 'testnet', but after switching to 'mainnet', It gives error like this.

JsonRpcError: Invalid params
    at /sui-script/node_modules/@mysten/sui.js/dist/cjs/client/rpc-websocket-client.js:103:15
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async RpcSubscription.subscribe (/sui-script/node_modules/@mysten/sui.js/dist/cjs/client/rpc-websocket-client.js:197:31)
    at async WebsocketClient.subscribe (/sui-script/node_modules/@mysten/sui.js/dist/cjs/client/rpc-websocket-client.js:111:5)
    at async SuiHTTPTransport.subscribe (/sui-script/node_modules/@mysten/sui.js/dist/cjs/client/http-transport.js:99:25)
    at async handleEvent (sui-script/grab.js:43:22) {
  code: -32602,
  type: 'InvalidParams'
}

System Information

• OS: Mac M1 OS version: 14.4.1
• Node version: v21.7.3

[stefan-mysten]

This is a known issue. The WS server is not very stable and it fails randomly. We'd recommend to use a polling method for whatever you need to do.
See also: #14355