Monitor Memory Usage in NodeJS

monitor-memory-usage.ts

function formatMemoryUsage(data: number) {
  return `${Math.round((data / 1024 / 1024) * 100) / 100} MB`;
}

function getCurrentMemoryUsage(): Object {
  const memoryData = process.memoryUsage();

  return {
    rss: `${formatMemoryUsage(memoryData.rss)} -> Resident Set Size - total memory allocated for the process execution`,
    heapTotal: `${formatMemoryUsage(memoryData.heapTotal)} -> total size of the allocated heap`,
    heapUsed: `${formatMemoryUsage(memoryData.heapUsed)} -> actual memory used during the execution`,
    external: `${formatMemoryUsage(memoryData.external)} -> V8 external memory`,
  };
}