mirror of
https://gitlab.com/openstapps/openstapps.git
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114 lines
2.9 KiB
TypeScript
114 lines
2.9 KiB
TypeScript
/*
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* Copyright (C) 2019 StApps
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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import {Logger} from '@openstapps/logger';
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import express from 'express';
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import http from 'http';
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import {configureApp} from './app';
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import {Elasticsearch} from './storage/elasticsearch/elasticsearch';
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const app = express();
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/**
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* Get port from environment and store in Express.
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*/
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// tslint:disable-next-line: strict-boolean-expressions
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const port = normalizePort(process.env.PORT || '3000');
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/**
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* Create HTTP server.
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*/
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const server = http.createServer(app);
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/**
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* Define server handling for specific events
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*/
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server.on('error', onError);
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server.on('listening', onListening);
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/**
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* Normalize a port into a number, string, or false.
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*/
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function normalizePort(value: string) {
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const portNumber = parseInt(value, 10);
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if (isNaN(portNumber)) {
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// named pipe
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return value;
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}
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if (portNumber >= 0) {
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// port number
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return portNumber;
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}
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return false;
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}
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/**
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* Event listener for HTTP server "error" event.
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*/
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// tslint:disable-next-line: completed-docs
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async function onError(error: { code: string; syscall: string; }) {
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if (error.syscall !== 'listen') {
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throw error;
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}
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const bind = typeof port === 'string'
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? `Pipe ${port}`
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: `Port ${port}`;
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// handle specific listen errors with friendly messages
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switch (error.code) {
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case 'EACCES':
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await Logger.error(`${bind} requires elevated privileges`);
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process.exit(1);
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break;
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case 'EADDRINUSE':
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await Logger.error(`${bind} is already in use`);
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process.exit(1);
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break;
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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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* Event listener for HTTP server "listening" event.
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*/
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function onListening() {
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const addr = server.address();
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if (addr !== null) {
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const bind = typeof addr === 'string'
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? `pipe ${addr}`
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: `port ${addr.port}`;
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Logger.ok(`Listening on ${bind}`);
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} else {
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// tslint:disable-next-line: no-floating-promises
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Logger.error(`Failed to start binding`);
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}
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}
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configureApp(app, {elasticsearch: Elasticsearch})
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.then(() => {
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Logger.ok('Successfully configured express server');
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// After app setup listen on provided port, on all network interfaces
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server.listen(port);
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})
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.catch((err) => {
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throw err;
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});
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