How to use function from typescript file in custom server.js

[shahidcodes]

I've a next app which uses typescript, I need to use custom server in order to do some things. I created a server.js file in root and everything works. But I don't know how to use some functions written in typescript file in server.js since it does not go through babel.

What's the way to do it?
Basically, I want to use a function exported from bootstrap.ts in my server.js

[bobarros]

it's possible to convert server.js to server.ts or it's going to be too much trouble?

Because if it is simple, it will work by just importing the function inside server.ts

import express from 'express';
import function from 'otherfile';

[shahidcodes]

Don't think I can just rename the server to .ts as doc says it doesn't go through babel or webpack and the way to start next app when using server is to run server.js file through node.js directly.

https://nextjs.org/docs/advanced-features

[bobarros]

Most of the time you can't just rename a js file to a ts one. That's why I wrote convert.
Your link doesn't exist. It was suppose to be this one? https://nextjs.org/docs/advanced-features/custom-server

Anyway, I was asking if something like so was easier:

https://github.com/vercel/next.js/tree/canary/examples/custom-server-typescript

Because all your project would stay with typescript and seems more like it should be.
You can test yourself using:

[npx, yarn etc] create next-app --example custom-server-typescript custom-server-typescript-app

[shahidcodes]

I misunderstood, my bad. That'll work.

Thanks