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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 | ||
3d49c6d2 JB |
11 | class WebSocketServerWorker extends ClusterWorker<WorkerData, WorkerResponse> { |
12 | private static wss: WebSocketServer | |
13 | ||
8538ea4c JB |
14 | private static readonly factorial = (n: number): number => { |
15 | if (n === 0) { | |
16 | return 1 | |
17 | } | |
18 | return WebSocketServerWorker.factorial(n - 1) * n | |
19 | } | |
20 | ||
3d49c6d2 JB |
21 | private static readonly startWebSocketServer = ( |
22 | workerData?: WorkerData | |
23 | ): WorkerResponse => { | |
67f3f2d6 | 24 | const { port } = workerData! |
30369cc0 | 25 | |
3d49c6d2 JB |
26 | WebSocketServerWorker.wss = new WebSocketServer({ port }, () => { |
27 | console.info( | |
28 | `⚡️[ws server]: WebSocket server is started in cluster worker at ws://localhost:${port}/` | |
29 | ) | |
30 | }) | |
72855e92 | 31 | |
041dc05b | 32 | WebSocketServerWorker.wss.on('connection', ws => { |
3d49c6d2 JB |
33 | ws.on('error', console.error) |
34 | ws.on('message', (message: RawData) => { | |
35 | const { type, data } = JSON.parse( | |
36 | // eslint-disable-next-line @typescript-eslint/no-base-to-string | |
37 | message.toString() | |
38 | ) as MessagePayload<DataPayload> | |
39 | switch (type) { | |
40 | case MessageType.echo: | |
41 | ws.send( | |
42 | JSON.stringify({ | |
43 | type: MessageType.echo, | |
44 | data | |
45 | }) | |
46 | ) | |
47 | break | |
48 | case MessageType.factorial: | |
49 | ws.send( | |
50 | JSON.stringify({ | |
51 | type: MessageType.factorial, | |
8538ea4c | 52 | data: { |
67f3f2d6 | 53 | number: WebSocketServerWorker.factorial(data.number!) |
8538ea4c | 54 | } |
3d49c6d2 JB |
55 | }) |
56 | ) | |
57 | break | |
58 | } | |
59 | }) | |
72855e92 | 60 | }) |
3d49c6d2 JB |
61 | return { |
62 | status: true, | |
63 | port: WebSocketServerWorker.wss.options.port | |
64 | } | |
72855e92 | 65 | } |
72855e92 | 66 | |
72855e92 | 67 | public constructor () { |
e8f1b611 JB |
68 | super(WebSocketServerWorker.startWebSocketServer, { |
69 | killHandler: () => { | |
70 | WebSocketServerWorker.wss.close() | |
71 | } | |
72 | }) | |
72855e92 JB |
73 | } |
74 | } | |
75 | ||
76 | export const webSocketServerWorker = new WebSocketServerWorker() |