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

When building a OCaml 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 OCaml 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 OCaml 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 OCaml 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.

OCaml code snippets

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

open Lwt
open Cohttp
open Cohttp_lwt_unix

let postData = ref "{\"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 reqBody = 
  let uri = Uri.of_string "https://api.logsnag.com/v1/log" in
  let headers = Header.init ()
    |> fun h -> Header.add h "Content-Type" "application/json"
    |> fun h -> Header.add h "Authorization" "Bearer YOUR_API_TOKEN"
  in
  let body = Cohttp_lwt.Body.of_string !postData in

  Client.call ~headers ~body `POST uri >>= fun (_resp, body) ->
  body |> Cohttp_lwt.Body.to_string >|= fun body -> body

let () =
  let respBody = Lwt_main.run reqBody in
  print_endline (respBody)

OCaml 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 OCaml 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 OCaml 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. Monitor your CI/CD build status for your OCaml application
2. Monitor your CPU usage in your OCaml application
3. Monitor when database goes down in your OCaml application
4. Monitor high disk usage in your OCaml application
5. Monitor when a user changes their email address in your OCaml application
6. Monitor failed logins in your OCaml application
7. Monitor failed payments for your OCaml application
8. Monitor memory usage in your OCaml application
9. Monitor MySQL downtime in your OCaml application
10. Monitor when a new feature is used in your OCaml application
11. Monitor your Postgres downtime in your OCaml application
12. Monitor Redis downtime in your OCaml application
13. Monitor suspicious activity in your OCaml application
14. Monitor when a user exceeds the usage limit for your OCaml service
15. Get a notification when your OCaml code is done executing
16. Send push notifications to your phone or desktop using OCaml
17. Track canceled subscriptions in your OCaml application
18. Track your OCaml cron jobs
19. Track when a file is uploaded to your OCaml application
20. Track when a form is submitted to your OCaml application
21. Track payment events via OCaml
22. Track user sign in events in OCaml
23. Track user signup events via OCaml
24. Track waitlist signup events via OCaml