NodeJs how to make a script run automatically on time?

Question

Node.js

Good day.
- There is a nodejs server, I run the server.js input file on the server through forever start
- There is a script that parses information from the donor site
I wanted to make the parsing happen every half an hour, I used the 'node-schedule' package
But I realized that I did it wrong by putting the code in server.js i.e. each user who came to the site ran the parsing script.
The question is - how to do it right?
Do I understand correctly that you need to run separate processes with parsing and with the site. If possible, please share an example.
Thanks in advance

Answer 1

Feng shui: set up cron and run node parser.js
If there is nothing to do: setInterval(function(){/*parse*/}, 30*60*1000)

Answer 2

For example like this:

function parser() {
  // request get
  return Promise.delay(500).then(() => ({ results: [] }));
}

function* sequence() {
  while (true) {
    yield parser();
    // other throwns
  }
}

(async () => {
  for (let parserPromise of sequence()) {
    const parserResults = await parserPromise;
    await Promise.delay(30 * 60 * 1000);
  }
})();