Can Node Use HTTP Response at Run Time?

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Making an HTTP POST call at run time, and the response has the info I need to continue. I can make the call with a CURL within an exec, and I assign the XML response to status.txt.

exec { 'barracuda-check-status': command => 'curl -o status.txt -d "..." http://barracudaURL', }

So now I have a file with the info I need. But can I use the contents file at run time on the node? Or because files are all compiled on the Master, if I try to load this at run time, will I actually always be looking at the original file ... (more)