Added app startup file

src/app.ts

@@ -0,0 +1,31 @@
+import consola from "consola";
+import "reflect-metadata";
+import { createExpressServer } from "routing-controllers";
+import { config, e as errors } from './config';
+import loaders from "./loaders/index";
+import AuthChecker from './middlewares/AuthChecker';
+import { ErrorHandler } from './middlewares/ErrorHandler';
+
+const CONTROLLERS_FILE_EXTENSION = process.env.NODE_ENV === 'production' ? 'js' : 'ts';
+const app = createExpressServer({
+    middlewares: [ErrorHandler],
+    authorizationChecker: AuthChecker,
+    development: config.development,
+    cors: true,
+    controllers: [`${__dirname}/controllers/*.${CONTROLLERS_FILE_EXTENSION}`],
+});
+
+async function main() {
+    await loaders(app);
+    app.listen(config.internal_port, () => {
+        consola.success(
+            `⚡️[server]: Server is running at http://localhost:${config.internal_port}`
+        );
+    });
+}
+if (errors === 0) {
+    main();
+} else {
+    consola.error("error");
+    // something's wrong
+}