1 import { ClusterWorker
} from
'poolifier'
2 import { type RawData
, WebSocketServer
} from
'ws'
11 const factorial
: (n
: number) => number = (n
) => {
15 return factorial(n
- 1) * n
18 class WebSocketServerWorker
extends ClusterWorker
<WorkerData
, WorkerResponse
> {
19 private static wss
: WebSocketServer
21 private static readonly startWebSocketServer
= (
22 workerData
?: WorkerData
23 ): WorkerResponse
=> {
24 const { port
} = workerData
as WorkerData
25 WebSocketServerWorker
.wss
= new WebSocketServer({ port
}, () => {
27 `⚡️[ws server]: WebSocket server is started in cluster worker at ws://localhost:${port}/`
31 WebSocketServerWorker
.wss
.on('connection', (ws
) => {
32 ws
.on('error', console
.error
)
33 ws
.on('message', (message
: RawData
) => {
34 const { type, data
} = JSON
.parse(
35 // eslint-disable-next-line @typescript-eslint/no-base-to-string
37 ) as MessagePayload
<DataPayload
>
39 case MessageType
.echo
:
42 type: MessageType
.echo
,
47 case MessageType
.factorial
:
50 type: MessageType
.factorial
,
51 data
: { number: factorial(data
.number as number) }
60 port
: WebSocketServerWorker
.wss
.options
.port
64 public constructor () {
65 super(WebSocketServerWorker
.startWebSocketServer
, {
67 WebSocketServerWorker
.wss
.close()
73 export const webSocketServerWorker
= new WebSocketServerWorker()