Capturing console output in node.js with out editing server code

Question

First stackoverflow question! I am trying to capture all console.log() output from a node.js server. Assume I am on a linux machine and I cannot edit the server's code, (project leader's request). I can, however change how I start the server (node --debug server.js) and I can attach shell scripts. My intent is to pipe the console output into another socket.io server.

I am thinking the only obvious solutions are to either write a linux command to pipe output of the server into something or node.js has a tricky --debug method to output the information.

End result, I want to be able to run the server and pipe the console output to a API testing server. That way, a tester would be able to see, streaming, the output of the server in correlation to the response JSON objects from the API end points.

Thanks, I would love to hear your solutions...

shesek · Accepted Answer · 2013-02-27 00:09:13Z

2

Answered over IRC, if anyone's interested:

<shesek> patrickm, can't you just pipe the output to another script? <shesek> node server.js | node send-logs-to-somewhere.js <shesek> patrickm, in send-logs-to-somewhere.js, you can just read from process.stdin <patrickm> :) <patrickm> thats easy

answered Feb 27, 2013 at 0:09

shesek

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2 Comments

Rudie Over a year ago

That's awesome, I didn't know that was possible. send-logs-to-somewhere.js just keeps listening for input?

mclenithan Over a year ago

yea it works beautifully. i open a socket.io connection, open stdin, let the magic happen.

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