Support for Bun + Socket.io + Hono Integration (Works on Node.js, not Bun)

[calebeaires]

What is the feature you are proposing?

Describe the feature request

I’d like to request support (or guidance) for integrating Socket.io with Hono when running on Bun. Currently, using Socket.io with Hono works seamlessly on Node.js, but the same approach does not function as expected on Bun.

Is your feature request related to a problem? Please describe.

Yes. When trying to use Socket.io with Hono on Bun, the server either fails to start, or WebSocket connections do not establish properly. This is a blocker for projects that want to use the performance of Bun with real-time features provided by Socket.io and the simplicity of Hono.

Describe the solution you’d like

• An example of integrating Socket.io with Hono on Bun and/or If there are technical blockers in Bun or Hono, a roadmap or explanation would be helpful
• Using other WebSocket libraries, but Socket.io is preferred for its features and ecosystem

Additional context

Node.js: Works fine with Socket.io and Hono
Bun: Fails to integrate with Socket.io and Hono

[yusukebe]

@calebeaires

I've never used Socket.io well. Can you share an example project?

[hunterwilhelm]

Possibly related to oven-sh/bun#10441