refactor: code cleanups

[poolifier.git] / examples / typescript / http-server-pool / express-cluster / src / worker.ts

diff --git a/examples/typescript/http-server-pool/express-cluster/src/worker.ts b/examples/typescript/http-server-pool/express-cluster/src/worker.ts
index da1066c4a7d997e044af5731596ca08c36a251ed..4659e00aee4acb7a91ada465a294fa4fafc7b5db 100644 (file)
--- a/examples/typescript/http-server-pool/express-cluster/src/worker.ts
+++ b/examples/typescript/http-server-pool/express-cluster/src/worker.ts
@@ -1,23 +1,31 @@
-import type { Server } from 'http'
-import type { AddressInfo } from 'net'
-import { ClusterWorker } from 'poolifier'
+import type { Server } from 'node:http'
+import type { AddressInfo } from 'node:net'
+
 import express, { type Express, type Request, type Response } from 'express'
-import { type WorkerData, type WorkerResponse } from './types.js'
+import { ClusterWorker } from 'poolifier'
 
-const factorial: (n: number) => number = n => {
-  if (n === 0) {
-    return 1
-  }
-  return factorial(n - 1) * n
-}
+import type { WorkerData, WorkerResponse } from './types.js'
 
 class ExpressWorker extends ClusterWorker<WorkerData, WorkerResponse> {
   private static server: Server
 
+  private static readonly factorial = (n: number | bigint): bigint => {
+    if (n === 0 || n === 1) {
+      return 1n
+    } else {
+      n = BigInt(n)
+      let factorial = 1n
+      for (let i = 1n; i <= n; i++) {
+        factorial *= i
+      }
+      return factorial
+    }
+  }
+
   private static readonly startExpress = (
     workerData?: WorkerData
   ): WorkerResponse => {
-    const { port } = workerData as WorkerData
+    const { port } = workerData!
 
     const application: Express = express()
 
@@ -30,18 +38,23 @@ class ExpressWorker extends ClusterWorker<WorkerData, WorkerResponse> {
 
     application.get('/api/factorial/:number', (req: Request, res: Response) => {
       const { number } = req.params
-      res.send({ number: factorial(parseInt(number)) }).end()
+      res
+        .send({
+          number: ExpressWorker.factorial(Number.parseInt(number)).toString()
+        })
+        .end()
     })
 
+    let listenerPort: number | undefined
     ExpressWorker.server = application.listen(port, () => {
+      listenerPort = (ExpressWorker.server.address() as AddressInfo).port
       console.info(
-        // eslint-disable-next-line @typescript-eslint/restrict-template-expressions
-        `⚡️[express server]: Express server is started in cluster worker at http://localhost:${port}/`
+        `⚡️[express server]: Express server is started in cluster worker at http://localhost:${listenerPort}/`
       )
     })
     return {
       status: true,
-      port: (ExpressWorker.server.address() as AddressInfo)?.port ?? port
+      port: listenerPort ?? port
     }
   }