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72855e92 JB |
1 | import { ClusterWorker } from 'poolifier' |
2 | import { type RawData, WebSocketServer } from 'ws' | |
3 | import { | |
4 | type DataPayload, | |
5 | type MessagePayload, | |
6 | MessageType, | |
7 | type WorkerData, | |
8 | type WorkerResponse | |
9 | } from './types.js' | |
10 | ||
8ebe6c30 | 11 | const factorial: (n: number) => number = (n) => { |
72855e92 JB |
12 | if (n === 0) { |
13 | return 1 | |
14 | } | |
15 | return factorial(n - 1) * n | |
16 | } | |
17 | ||
3d49c6d2 JB |
18 | class WebSocketServerWorker extends ClusterWorker<WorkerData, WorkerResponse> { |
19 | private static wss: WebSocketServer | |
20 | ||
21 | private static readonly startWebSocketServer = ( | |
22 | workerData?: WorkerData | |
23 | ): WorkerResponse => { | |
24 | const { port } = workerData as WorkerData | |
25 | WebSocketServerWorker.wss = new WebSocketServer({ port }, () => { | |
26 | console.info( | |
27 | `⚡️[ws server]: WebSocket server is started in cluster worker at ws://localhost:${port}/` | |
28 | ) | |
29 | }) | |
72855e92 | 30 | |
8ebe6c30 | 31 | WebSocketServerWorker.wss.on('connection', (ws) => { |
3d49c6d2 JB |
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 | |
36 | message.toString() | |
37 | ) as MessagePayload<DataPayload> | |
38 | switch (type) { | |
39 | case MessageType.echo: | |
40 | ws.send( | |
41 | JSON.stringify({ | |
42 | type: MessageType.echo, | |
43 | data | |
44 | }) | |
45 | ) | |
46 | break | |
47 | case MessageType.factorial: | |
48 | ws.send( | |
49 | JSON.stringify({ | |
50 | type: MessageType.factorial, | |
51 | data: { number: factorial(data.number as number) } | |
52 | }) | |
53 | ) | |
54 | break | |
55 | } | |
56 | }) | |
72855e92 | 57 | }) |
3d49c6d2 JB |
58 | return { |
59 | status: true, | |
60 | port: WebSocketServerWorker.wss.options.port | |
61 | } | |
72855e92 | 62 | } |
72855e92 | 63 | |
72855e92 | 64 | public constructor () { |
e8f1b611 JB |
65 | super(WebSocketServerWorker.startWebSocketServer, { |
66 | killHandler: () => { | |
67 | WebSocketServerWorker.wss.close() | |
68 | } | |
69 | }) | |
72855e92 JB |
70 | } |
71 | } | |
72 | ||
73 | export const webSocketServerWorker = new WebSocketServerWorker() |