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

When building a NodeJs 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 NodeJs 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 NodeJs 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 NodeJs 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.

Connect LogSnag to NodeJs

Setting up LogSnag

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

NodeJs code snippets

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

Using NodeJs with Axios

const axios = require('axios');
let 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
});

let config = {
  method: 'post',
  maxBodyLength: Infinity,
  url: 'https://api.logsnag.com/v1/log',
  headers: { 
    'Content-Type': 'application/json', 
    'Authorization': 'Bearer YOUR_API_TOKEN'
  },
  data : data
};

axios.request(config)
.then((response) => {
  console.log(JSON.stringify(response.data));
})
.catch((error) => {
  console.log(error);
});

Using NodeJs with Native

var https = require('follow-redirects').https;
var fs = require('fs');

var options = {
  'method': 'POST',
  'hostname': 'api.logsnag.com',
  'path': '/v1/log',
  'headers': {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_TOKEN'
  },
  'maxRedirects': 20
};

var req = https.request(options, function (res) {
  var chunks = [];

  res.on("data", function (chunk) {
    chunks.push(chunk);
  });

  res.on("end", function (chunk) {
    var body = Buffer.concat(chunks);
    console.log(body.toString());
  });

  res.on("error", function (error) {
    console.error(error);
  });
});

var postData = 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
});

req.write(postData);

req.end();

Using NodeJs with Request

var request = require('request');
var options = {
  'method': 'POST',
  'url': 'https://api.logsnag.com/v1/log',
  'headers': {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_TOKEN'
  },
  body: 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
  })

};
request(options, function (error, response) {
  if (error) throw new Error(error);
  console.log(response.body);
});

Using NodeJs with Unirest

var unirest = require('unirest');
var req = unirest('POST', 'https://api.logsnag.com/v1/log')
  .headers({
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_TOKEN'
  })
  .send(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
  }))
  .end(function (res) { 
    if (res.error) throw new Error(res.error); 
    console.log(res.raw_body);
  });

NodeJs 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 NodeJs 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 NodeJs 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

View all common use-cases with NodeJs

Setting up LogSnag

NodeJs code snippets

NodeJs integration details

Other use-cases for LogSnag

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