Node JS spawn input text when prompted

I'm using the Node JS Child Process to run a command, I need to somehow automatically enter some text when prompted and press enter automatically from within my stdout, not sure how to do that...

var child = spawn('COMMAND-TO-RUN', {
  shell: true
});

child.stdout.on('data', function (data) {
  // when prompted in the terminal, need to input something automatically from here...
  console.log(data)
  console.log("STDOUT:", data.toString());
});

UPDATE

I've already tried to use child.stdin.write and this didn't work in the context of my problem where the terminal is prompting for a SSH password since I'm trying to automate inputting a password into the terminal through the JS, not sure why this doesn't work.

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