Cluster.worker - cluster - Node documentation

property Cluster.worker

A reference to the current worker object. Not available in the primary process.

import cluster from 'node:cluster';

if (cluster.isPrimary) {
  console.log('I am primary');
  cluster.fork();
  cluster.fork();
} else if (cluster.isWorker) {
  console.log(`I am worker #${cluster.worker.id}`);
}

Type

Worker | undefined