TypeORM Connection "default" was not found when using a routes file and repository pattern - node.js

Question

I have a TS project where I'm using TypeORM. I'm using Repository pattern so I have layers: Controller -> Service -> Repository.
The Controller constructor initialize the Service class which initialize Repository class, where the constructor is:
constructor(){
this.ormRepository = getRepository(TypeormEntity)
}
This works fine when I create the routes in the index.ts like this:
createConnection().then(() => {
const controller = new MyController()
app.get('/', controller.getSomething);
})
The connection is created and then I initialize the class using new MyController().
The problem is when I want to get the routes in another file. I want to get this structure folder:
src
|--> index.ts
|--> routes
|--> v1
|--> router.ts
|--> value
|--> value.route.ts
|--> v2
|--> ...
So, to achieve this, the index.ts import the routes. But the problem is, as the import is done, the MyController() constructor is executed and the execution fails.
So I want to have something like this in index.ts
import * as express from 'express'
import { createConnection } from "typeorm";
import Router from './routes/v1/router'
const app = express()
createConnection().then(() => {
app.use('/', Router)
app.listen(port)
})
Also, following the import call, the file router.ts in routes/v1 is:
import { json, Router } from 'express'
import valueRouter from './value/value.route'
const router = Router()
router.use(json())
router.use('/value', valueRouter)
export default router
This is to add a "prefix" to all routes depending the resource they call.
And value.route.ts is where the controller is initialized and fails.
import { Router } from "express";
import ValueController from '../../../controller/value.controller'
const router = Router()
const vc = new ValueController()
router.get('/',vc.getSomething)
export default router
I've tested deleting the constructor and the project intializes ok, so the problem is the repository initialization accross Controller & Service.
How can I achieve this?
Thanks in advance.

Answer 1

Finally I solved my own issue using dynamic imports.
Now my index.ts looks like this:
createConnection().then(() => {
import('./routes/v1/router').then((router: any) => {
app.use('/', router.default)
app.listen(port)
})
})
Which I think is much cleaner than having all routes added in this file. Calling routes in an external file I can manage a huge amount and maintain a clean structure.