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David David - 10 months ago 376
Node.js Question

How to wait for a child process to finish in Node.js?

I'm running a Python script through a child process in Node.js, like this:

require('child_process').exec('python', function (error, stdout, stderr) {

but Node doesn't wait for it to finish. How can I wait for the process to finish?

EDIT: Is it possible to do this by running the child process in a module I call from the main script?


You should use exec-sync

That allow your script to wait that you exec is done

really easy to use:

var execSync = require('exec-sync');

var user = execSync('python');

Take a look at: