How to enable permessage-deflate compression on the sever side

[bshahrok]

I have a website that uses EnginIO on both JS client and Java server. Permessage-deflate compression is enabled by default on the client but to get the compression working I need to I want to enable it on the server-side as well. I have been looking into documentation but I could not find any instruction on how to negotiate with the java server which uses EnginIO to enable permessage-deflate extension Any help is greatly appreciated.

[trinopoty]

Hi,
Please refer to this resource to enable it on the server: https://stackoverflow.com/questions/43655827/switch-spring-websocket-to-use-compression
As for engine.io/server.io, as long as the compression is transparent, it will work out of the box.