80 lines
1.7 KiB
TypeScript
80 lines
1.7 KiB
TypeScript
// eslint-disable-next-line @eslint-community/eslint-comments/disable-enable-pair
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/* eslint-disable n/no-process-exit, unicorn/no-process-exit */
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import http from 'node:http'
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import Debug from 'debug'
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import exitHook from 'exit-hook'
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import { app } from '../app.js'
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import * as configFunctions from '../helpers/functions.config.js'
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const debug = Debug(`lot-occupancy-system:wwwProcess:${process.pid}`)
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interface ServerError extends Error {
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syscall: string
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code: string
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}
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function onError(error: ServerError): void {
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if (error.syscall !== 'listen') {
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throw error
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}
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// handle specific listen errors with friendly messages
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switch (error.code) {
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// eslint-disable-next-line no-fallthrough
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case 'EACCES': {
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debug('Requires elevated privileges')
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process.exit(1)
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// break;
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}
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// eslint-disable-next-line no-fallthrough
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case 'EADDRINUSE': {
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debug('Port is already in use.')
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process.exit(1)
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// break;
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}
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// eslint-disable-next-line no-fallthrough
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default: {
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throw error
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}
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}
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}
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function onListening(server: http.Server): void {
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const addr = server.address()
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if (addr !== null) {
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const bind =
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typeof addr === 'string' ? `pipe ${addr}` : `port ${addr.port.toString()}`
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debug(`HTTP Listening on ${bind}`)
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}
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}
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/*
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* Initialize HTTP
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*/
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process.title = `${configFunctions.getProperty(
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'application.applicationName'
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)} (Worker)`
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const httpPort = configFunctions.getProperty('application.httpPort')
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const httpServer = http.createServer(app)
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httpServer.listen(httpPort)
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httpServer.on('error', onError)
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httpServer.on('listening', () => {
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onListening(httpServer)
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})
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exitHook(() => {
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debug('Closing HTTP')
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httpServer.close()
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})
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