wisp-server-node

October 28, 2025 ยท View on GitHub

A wisp protocol server implementation, written in NodeJS.

Warning

wisp-server-node is deprecated due to security and stability issues. Please use wisp-js/server instead.

Old Documentation:

Usage โœจ

You can integrate it into your existing node:http server pretty easily by just adding this to your code

httpServer.on("upgrade", (req, socket, head) => {
    wisp.routeRequest(req, socket, head);
});

Migrating while dual wielding bare-server-node ๐Ÿคบ

If you're migrating from bare server but want to retain both, simply use

httpServer.on("upgrade", (req, socket, head) => {
    if (bare.shouldRoute(req)) {
        bare.routeUpgrade(req, socket, head);
    } else {
        wisp.routeRequest(req, socket, head);
    }
});

wisp-server-node doesn't need to handle regular requests, just upgrade events.

Is it fast? ๐Ÿš€

It's good enough for testing, it's easy to integrate into your existing app, and maybe it's good enough for light prod usage, but chances are if you're at the scale where you're running a reverse proxy, you should use epoxy-server which will deliver better performance at a lower memory footprint

Is it API stable? ๐ŸŽ

I don't personally plan on breaking api compatibility, so unless a serial killer is holding my family at gun point under the condition of breaking wisp-server-node's API, probably.

Is it stable stable? ๐ŸŽ๐ŸŽ

No. I'm sure you can make it crash given enough effort, but it's pretty okay stability wise for your average TCP request coming from epoxy client or libcurl.js.