created app for node.js server

src/index.js

@@ -0,0 +1,69 @@
+import file from 'node:fs'
+import https from 'node:https'
+import path from 'node:path'
+import process from 'node:process'
+import dayjs from 'dayjs'
+import utc from 'dayjs/plugin/utc.js'
+import express from 'express'
+import config from './config/index.js'
+import routes from './routes/index.js'
+import { error404, errorHandler } from './utils/errors.js'
+import { getRoutes } from './utils/links.js'
+
+const app = express()
+dayjs.extend(utc)
+const { NODE_ENV } = process.env
+
+/**
+ * MIDDLEWARE------------------------------------------
+ */
+//parses incoming requests with JSON payloads
+app.use(express.json({
+    limit: process.env.APP_BODY_LIMIT || config.bodyLimit
+}));
+
+/**
+ * BODY PARSER------------------------------------------
+ */
+//parses incoming requests with urlencoded payloads
+//extended: false - parsing the URL-encoded data with the classic encoding algorithm 
+app.use(express.urlencoded({extended: false}));
+
+app.use((req, res, next) => {
+	res.header('Access-Control-Allow-Origin', '*')
+	res.header('Access-Control-Allow-Methods', 'GET,PATCH,POST,DELETE')
+	res.header('Access-Control-Allow-Headers', 'Content-Type, Authorization, Client-Version')
+	next()
+})
+
+// ROUTES --------------------------------------------------------------------------------
+const r1 = routes(config)
+
+const links1 = getRoutes({ prefix: '', routes: r1.stack })
+const linkRoutes = { ...links1 }
+
+app.use('/', r1)
+
+// APPLICATION LAUNCHER ------------------------------------------------------------------
+// 404 - Not found
+app.use((req, res) => {
+	const err = error404()
+	const error = errorHandler({ err, code: 'NOT_FOUND' }, config.environment)
+	res.status(error.code).json(error)
+})
+
+/*const httpsOptions = () => {
+	return {
+		key: file.readFileSync(path.join(__dirname, '..', 'key.pem')),
+		cert: file.readFileSync(path.join(__dirname, '..', 'cert.pem'))
+	}
+}*/
+
+const port = config.port || 3000
+
+const server = (NODE_ENV === 'development' ? app : https.createServer(httpsOptions(), app)).listen(port, () => {
+	// eslint-disable-next-line no-console
+	console.log(`Server listening on port ${port}`)
+})
+
+export { app, linkRoutes, server }