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Kemal: Fast, Effective, Simple web framework for Crystal Website: http://kemalcr.com/

P.S: I'm the author of Kemal :)

So cool! I really enjoy working with Kemal. :)

The State of Crystal at v0.21 article (https://crystal-lang.org/2017/02/24/state-of-crystal-at-0.21...) stated that multithreading with work stealing was coming "soon" and that you already managed to run kemal in parallel. Can you share anything about the current state of that project?

Even though it's experimental I've successfully compiled Kemal with multi-thread support. The throughput was OK. It's promising and will definitely help CPU bound apps :)

You can check the wiki for more info https://github.com/crystal-lang/crystal/wiki/Threads-support

Is it possible to pass a cookie (session id) using websockets with kemal? or do I have to manage authentication manually?

I use to send my JWT token to check validity of the user's session

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