Built-in module auto porting

[Artrix9095]

I have a scenario. So, lets say your using node-fetch for your NodeJS version of your library, but you want to use the built-in fetch module in deno. Or lets say you use ws for nodejs and the built-in websocket module in deno. I currently have a very hacky solution

const isDeno = () => {
    // @ts-ignore
    try {
        window.fetch; 
        return true
    } catch { return false }
}
// @ts-ignore
const WebSocket = isDeno() ? window.WebSocket : require('ws')


...

Cons of this method is... I no longer get intellisense for the WebSocket variable.

I think something like this would be nice in ports

{
    "ports": {
        "ws": "builtins://WebSocket"
    }
}

IF this is possible this would be a huge help to me and my team.

Thanks!

[garronej]

Hi @Artrix9095,

Thanks for reaching out. I think there is something in Denoify already that will fit your needs.
Do you know about the .deno.ts files?

In my_dummy_npm_and_deno_module

• hash.ts
• hash.deno.ts

In your cas you could have a file for node:
tools/WebSocket.ts

import WebSocket from 'ws';
export { WebSocket };

And a file for deno
tools/WebSocket.deno.ts

export const { WebSocket } = window;

And then whenever you need WebSocket import it just like:

import { WebSocket } from "../tools/WebSocket";

If you are running on Deno it will import WebSocket.deno.ts, on node it will be WebSocket.ts

Hopes it fit your needs.

Best regards,

[Artrix9095]

Thanks for the fast reply, this should work. Thanks!