setup application, server, and configs

src/application.ts

@@ -0,0 +1,48 @@
+import { serverConfig } from "@/configs/server.config";
+import compression from "compression";
+import cors from "cors";
+import express from "express";
+import helmet from "helmet";
+
+export class Application {
+	private readonly _app: express.Application;
+
+	public constructor() {
+		this._app = express();
+	}
+
+	public initializeMiddlewares() {
+		this._app.use(helmet());
+		this._app.use(cors());
+		this._app.use(compression());
+		this._app.use(express.json());
+		this._app.use(express.urlencoded());
+	}
+
+	public initializeRouters() {
+		// this._app.use("/countries");
+		// this._app.use("/cities");
+		// this._app.use("/airlines");
+		// this._app.use("/airports");
+		// this._app.use("/flights");
+		// this._app.use("/hotel-facilities");
+		// this._app.use("/hotels");
+		// this._app.use("/transportations");
+		// this._app.use("/packages");
+	}
+
+	public initializeErrorHandlers() {}
+
+	public run() {
+		const port = serverConfig.port;
+		const host = serverConfig.host;
+
+		this._app.listen(port, host, (err) => {
+			if (err) {
+				console.log(`Failed to listen server: ${err.message}`);
+			} else {
+				console.log(`Server listening at ${host}:${port}`);
+			}
+		});
+	}
+}

src/configs/_env.ts

@@ -0,0 +1,20 @@
+import z from "zod";
+
+export const _env = z
+	.object({
+		SERVER_HOST: z.string("Must be string."),
+		SERVER_PORT: z.coerce
+			.number("Must be number.")
+			.int("Must be integer.")
+			.min(0, "Min 0."),
+
+		DATABASE_HOST: z.string("Must be string.").nonempty("Must not empty."),
+		DATABASE_PORT: z.coerce
+			.number("Must be number.")
+			.int("Must be integer.")
+			.min(0, "Min 0."),
+		DATABASE_USERNAME: z.string("Must be string.").nonempty("Must not empty."),
+		DATABASE_PASSWORD: z.string("Must be string.").nonempty("Must not empty."),
+		DATABASE_NAME: z.string("Must be string.").nonempty("Must not empty."),
+	})
+	.parse(Bun.env);

src/configs/database.config.ts

@@ -0,0 +1,9 @@
+import { _env } from "@/configs/_env";
+
+export const databaseConfig = {
+	host: _env.DATABASE_HOST,
+	port: _env.DATABASE_PORT,
+	username: _env.DATABASE_USERNAME,
+	password: _env.DATABASE_PASSWORD,
+	name: _env.DATABASE_NAME,
+} as const;

src/configs/server.config.ts

@@ -0,0 +1,6 @@
+import { _env } from "@/configs/_env";
+
+export const serverConfig = {
+	host: _env.SERVER_HOST,
+	port: _env.SERVER_PORT,
+} as const;

src/main.ts

@@ -1,11 +0,0 @@
-import express from "express";
-
-const app = express();
-
-app.listen(3000, "localhost", (err) => {
-	if (err) {
-		console.log("Error starting server:", err);
-	} else {
-		console.log("Server is running at http://localhost:3000");
-	}
-});

src/server.ts

@@ -0,0 +1,20 @@
+import { Application } from "@/application";
+
+process.on("uncaughtException", (err) => {
+	let message = `Uncaught exception: ${err.message || err}`;
+	if (err.stack) {
+		message += `\n- Stack: ${err.stack}`;
+	}
+
+	console.warn(message);
+});
+
+process.on("unhandledRejection", (reason) => {
+	console.warn(`Unhandled rejection: ${reason}`);
+});
+
+const application = new Application();
+application.initializeMiddlewares();
+application.initializeRouters();
+application.initializeErrorHandlers();
+application.run();