Set proxy for some fetch request (not all)

[tamaina]

I apologize if this has already been implemented or issue created, but I could not find this usage in the documentation.

This would solve...

I would like to specify a proxy for each fetch run.

The implementation should look like...

Deno implements as follows PR:
denoland/deno#10907

In undici, it would become as follows...?

import { ProxyAgent } from 'undici';

const client = new ProxyAgent('localhost:3000');
const response = await fetch("https://myserver.com", { client });

(Is ProxyAgent better than Client?)

[mcollina]

cc @ronag

[KhafraDev]

import { ProxyAgent } from 'undici';

const client = new ProxyAgent('localhost:3000');
const response = await fetch("https://myserver.com", {
    dispatcher: client
});

If you are using node v18.2.0 or above, this will work using node's fetch. Otherwise, you need to import fetch from undici on v5.2.0 or above.

[1999]

@KhafraDev sorry for reviving this thread, but is this a standard thing? I couldn't find any "dispatcher" in Fetch API docs. It also isn't listed in Typescript "lib" types for "RequestInit":

[KhafraDev]

It's a node-specific extension. I wouldn't recommend using the dom types in node; @types/node will be more correct.

https://github.com/nodejs/undici?tab=readme-ov-file#undicifetchinput-init-promise