How to check if an arbitrary PID is running using Node.js?
You can call process.kill(pid, 0) and wrap it up in a try/catch.
http://nodejs.org/api/process.html#process_process_kill_pid_signal -
"Will throw an error if target does not exist, and as a special case, a signal of 0 can be used to test for the existence of a process."
Example:
function pidIsRunning(pid) { try { process.kill(pid, 0); return true; } catch(e) { return false; }}
I needed to check for running pid's in a project as well. I took this answer of using kill -0 <PID> and wrapped it up in a module called is-running https://npmjs.org/package/is-running
npm install is-running
I'm not an expert here, but could you not spawn a child process to check the status with a command line tool?