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Expose Undici's ProxyAgent and setGlobalDispatcher within Node #43187
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setGlobalDispatcheris exposed:global[Symbol.for('undici.globalDispatcher.1')] = yourDispatcher;
Reacted by Ari PerkkiöReplying to the last comment from @mcollina in the previous issue:
I would recommend opening up a separate issue about this topic and bringing it to the TSC. I don't think the whole of Undici has the stability guarantees needed to be part of the Node.js LTS cycle yet.
This makes sense! I'm not aware of Undici's process around stability guarantees like this, but I can understand how there are constraints there.
I do understand this isn't a top top priority since installing & importing Undici elsewhere is a usable workaround, so there's certainly no rush just would justify shipping an unstable API unnecessarily. I do think that the current situation isn't a good end state though, and there are good options we can aim for to fix this, so it would be great to find agreement to aim in that direction in the medium term.
I'm not sure how to take anything to the TSC, but very happy to be included on any discussion of this any time.
Reacted by aksjerglobal[Symbol.for('undici.globalDispatcher.1')] = yourDispatcher;
That's does work as a workaround, but it's not especially nice as the official API for this, and I think ProxyAgent needs to be available too to make this usable for global Fetch.
Reacted by Thayne McCombsI don't think we should expose
undicifurther until we want to considerfetchas stable.Reacted by Fonger@mcollina
I don't think we should exposeundicifurther until we want to considerfetchas stable.2022-11-14, Version 19.1.0
- drop fetch experimental warning (Matteo Collina) lib: drop fetch experimental warning #45287
That does not mark it stable, on purpose. It's the first step on that journey. This is something we might want to consider right now.
In the TSC meeeting of today, we decided that we are going to support HTTP_PROXY, HTTPS_PROXY and NO_PROXY env variables directly in Undici: nodejs/undici#1650.
Reacted by Moshe Atlow, Niko, Niek van der Maas, Kai Sellgren, Steven, silverwind, Théo LUDWIG, Daniel Bankhead, EVA (Entity Value Attribute), Wu Wenbin and 1 moreReacted by Tim Perry, David Kowis, Travis Fischer, Niko, Kai Sellgren, James Masters, aksjer, Steven, silverwind and Daniel BankheadHow is it going to handle different casing rules?
Reacted by 沈鸿飞- added 2 commits that reference this issue
on Mar 2, 2023 setGlobalDispatcheris exposed:global[Symbol.for('undici.globalDispatcher.1')] = yourDispatcher;
Is there a workaround to obtain
ProxyAgent?Reacted by silverwind48 remaining items
- added a commit that references this issue
on Oct 27, 2025 @mcollina is exposing some undici internals still in the plan? Couldn't find the tracking issue from the last collab summit
Is there currently any workaround to set proxy settings for specific requests that doesn't involve adding a dependency on undici?
Reacted by Arnold Hendriks, Jamie Birch and Vladislav PuzyrevThis issue has been marked as stale due to 210 days of inactivity.
It will be automatically closed in 30 days if no further activity occurs. If this is still relevant, please leave a comment or update it to keep it open.Would
http.setGlobalProxyFromEnv([env])solve this issue?@tmccombs I see. I just searched for the implementation of fetch dispatcher and found that the dispatcher was captured instantly on calling fetch, so in theory there's a hacky way to make proxy happen per fetch without adding a new dependency:
async function fetchWithTemporaryGlobalProxy(url, init, proxyEnv) { const restore = setGlobalProxyFromEnv(proxyEnv); try { return fetch(url, init); } finally { restore(); } }
This is bound to the implementation so not that stable.
This issue has been marked as stale due to 90 days of inactivity.
It will be automatically closed in 30 days if no further activity occurs. If this is still relevant, please leave a comment or update it to keep it open.nostale
Reacted by sosoba, Owen Buckley and Erik Rasmussen
Originally posted by @pimterry in #42814 (comment)