How to use middleware in socket.io-client

[JaLe29]

How can I print every payload in outgoing/ingoing requests through socket.io-client?

I don't want to use any third party library, it is possible? And how?

I didn't find any examples of this.

I am using socket.io-client

import io from 'socket.io-client'
const socket = io('http://localhost:4200')

[darrachequesne]

For future readers, catch-all listeners were added in Socket.IO v3:

socket.onAny((eventName, ...args) => {
  // ...
});

Documentation: https://socket.io/docs/v3/listening-to-events/#Catch-all-listeners

[RixInGithub]

For future readers, catch-all listeners were added in Socket.IO v3:

socket.onAny((eventName, ...args) => {
  // ...
});

Documentation: https://socket.io/docs/v3/listening-to-events/#Catch-all-listeners

What if I'm using lower versions than v3? I'm using v2 due to an outdated server Socket.IO version.

[darrachequesne]

@RixInGithub unfortunately, the feature was not backported to v2, which is in maintenance mode.