Problem with using typescript in server code

when I want to use type script as server code I get Error

my .ts code

---

` import * as express from ‘express’;

class PostController { public router; public path = ‘/Post’;

constructor() {
    this.router = express.Router();
    this.initRoutes();
}

public initRoutes() {
    this.router.get(this.path, this.getPosts);
}

getPosts(request: express.Request, response: express.Response) {
    response.send('Posts list')
}

}

export default PostController; `

and when I wun " npm run ssr" I get this error can you please help me

` ERROR in ./ServerCode/post.controller.ts 4:11 Module parse failed: Unexpected token (4:11) You may need an appropriate loader to handle this file type, currently no loader s are configured to process this file. See https://webpack.js.org/concepts#loade rs | | class PostController {

public router;

| public path = ‘/Post’; | @ ./server.ts 73:0-57 74:21-35 `

[hofa77]

and I am using it in the server.ts like this

`import PostController from ‘./ServerCode/post.controller’

app.use(‘/postUser’, PostController); `

[Gorniv]

I recommendation separate scripts for universal and backend