What is disk space monitoring in Node.js

Monitoring disk space means checking how much storage your server uses.
This helps you prevent crashes or slowdowns.

You can monitor diskspace using packages like systeminformation or hack your own.

For example, if log files grow too large, your service may stop working. .npm cache is a big offender.

And since most VPS instances have low default disk space, you’re better off implementing this early on.

Tracking disk usage in your Node.js app lets you send alerts before these issues occur.

Using Operational to track disk space

Operational is an open-source event tracking tool.
You can record custom events from your app and view them in a dashboard.
Use Operational to record disk space events with minimal code.

Setting up Operational

1. Go to app.operational.co and sign up for an account.
2. Create a new project and copy the API key.
3. Keep the API key for use in your Node.js app.

Code example: sending disk space alerts

import Operational from "@operational.co/sdk"

const ops = new Operational("YOUR_API_KEY")

// Function to get disk usage percentage
// Use `systeminformation` or something similar
function getDiskUsage() {
  // Example logic to calculate disk usage
  return 85
}

const used = getDiskUsage()

if (used > 80) {
  const payload = {
    name: "disk space low",
    avatar: "💾",
    content: `Server disk space at ${used}% usage`
  }

  await ops.events.ingest(payload)
}

This code checks disk usage and sends an alert event to Operational when usage exceeds 80%.

Conclusion

Operational can save time by handling event storage and dashboards.
You get alerts for disk space issues without building your own system, and also receive push alerts for these events.

Learn more at https://operational.co
Try the playground for ready-to-paste code snippets: https://operational.co/playground