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I have application on node it has steam-bots and socket.io server, during initialization bots they receive an instance socket.io and send to the admin panel requests about the status of trades When I need to update the server's socket.io code, I have to restart the application completely. How to make the bots not reboot when changing the server's socket.io code? Or - how can I organize data exchange between two nodejs applications?

If I want to connect my website and node.js server I would need to put the ip of the server in my source code but isn't this unsafe because everyone is able to see this if you use javascript, and people could like attack it or something? Also is using socket.io generally the 'best' way to connect a bot and a website or would using socket.io be called 'non-proffesional' and what other options exist? I also haven't seen a big site using socket.io so that makes me wondering, or do they hide it somehow?