Monitor when a user is being rate limited in your JavaScript application

LogSnag makes it easy to monitor your JavaScript application and to detect when a user is being rate limited.

When building a JavaScript application, you often have to deal with throttling. Throttling is a way to limit the number of requests that a user can make to your application. This is a common problem when building applications that are used by a lot of users. For example, let's say you're building a JavaScript application that allows users to upload files. You may want to limit the number of files a user can upload to 10 per minute. Again, this is a common problem and a great way to prevent users from abusing your service.

It is important to monitor when a throttle is being hit in your JavaScript application. It can signify a problem with your implementation or that a user may be trying to take advantage and abuse your service. Therefore, it's vital to set up a system to properly monitor when the throttle is being hit and let you and your team know when something is wrong.

LogSnag is an excellent tool for this problem as it trivializes tracking events in your JavaScript application and monitoring when the throttle is being hit. For example, you can use LogSnag to track an event when a user uploads a file. You can then set up a rule to notify you when a user has uploaded ten files. This way, you will know when a user has reached their limit, allowing you to take further action if needed.


Setting up LogSnag

  1. Sign up for a free LogSnag account.
  2. Create your first project from the dashboard.
  3. Head to settings and copy your API token.

JavaScript code snippets

Copy and paste the following code into your JavaScript project. You are required to replace the YOUR_API_TOKEN with your API token and update the project and channel names.

Using JavaScript with Fetch
var myHeaders = new Headers();
myHeaders.append("Content-Type", "application/json");
myHeaders.append("Authorization", "Bearer YOUR_API_TOKEN");

var raw = JSON.stringify({
  "project": "my-saas",
  "channel": "limits",
  "event": "User is being rate limited",
  "description": "User has uploaded more than the allowed amount of files",
  "icon": "⏱",
  "notify": true
});

var requestOptions = {
  method: 'POST',
  headers: myHeaders,
  body: raw,
  redirect: 'follow'
};

fetch("https://api.logsnag.com/v1/log", requestOptions)
  .then(response => response.text())
  .then(result => console.log(result))
  .catch(error => console.log('error', error));
Using JavaScript with jQuery
var settings = {
  "url": "https://api.logsnag.com/v1/log",
  "method": "POST",
  "timeout": 0,
  "headers": {
    "Content-Type": "application/json",
    "Authorization": "Bearer YOUR_API_TOKEN"
  },
  "data": JSON.stringify({
    "project": "my-saas",
    "channel": "limits",
    "event": "User is being rate limited",
    "description": "User has uploaded more than the allowed amount of files",
    "icon": "⏱",
    "notify": true
  }),
};

$.ajax(settings).done(function (response) {
  console.log(response);
});
Using JavaScript with XHR
// WARNING: For POST requests, body is set to null by browsers.
var data = JSON.stringify({
  "project": "my-saas",
  "channel": "limits",
  "event": "User is being rate limited",
  "description": "User has uploaded more than the allowed amount of files",
  "icon": "⏱",
  "notify": true
});

var xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener("readystatechange", function() {
  if(this.readyState === 4) {
    console.log(this.responseText);
  }
});

xhr.open("POST", "https://api.logsnag.com/v1/log");
xhr.setRequestHeader("Content-Type", "application/json");
xhr.setRequestHeader("Authorization", "Bearer YOUR_API_TOKEN");

xhr.send(data);

JavaScript integration details

When designing LogSnag, we aimed to create the most simple yet flexible event tracking tool possible. We wanted to make it easy for developers to integrate with their JavaScript applications and to start tracking events in no time.

Today, LogSnag is what we believe to be the next generation of event tracking. It works excellent with JavaScript and provides powerful features such as real-time event tracking, cross-platform push notifications, event filtering, user and product journeys, charts and analytics, and much more.

LogSnag provides a free plan to get you started with event tracking, and we can't wait to see how you use it. So please give it a try, and don't hesitate to reach out to us if you have any questions or feedback!

Other use-cases for LogSnag

  1. Track payment events via JavaScript

  2. Track user signup events via JavaScript

  3. Track your JavaScript cron jobs

  4. Track waitlist signup events via JavaScript

  5. Track user sign in events in JavaScript

  6. Get a notification when your JavaScript code is done executing

  7. Monitor when a user exceeds the usage limit for your JavaScript service

  8. Monitor when a new feature is used in your JavaScript application

  9. Monitor suspicious activity in your JavaScript application

  10. Monitor when database goes down in your JavaScript application

  11. Monitor your CPU usage in your JavaScript application

  12. Monitor memory usage in your JavaScript application

  13. Monitor high disk usage in your JavaScript application

  14. Track when a file is uploaded to your JavaScript application

  15. Track when a form is submitted to your JavaScript application

  16. Track canceled subscriptions in your JavaScript application

  17. Monitor failed payments for your JavaScript application

  18. Monitor your CI/CD build status for your JavaScript application

  19. Monitor when a user changes their email address in your JavaScript application

  20. Monitor Redis downtime in your JavaScript application

    View all common use-cases with JavaScript