Monitor failed payments for your OCaml application

These days, many OCaml applications are served via a subscription model where users pay a monthly or yearly fee to use the application. These applications are called SaaS or Software as a Service application. In these applications, users are usually charged a recurring monthly or yearly fee, or in some cases, a pay-as-you-go model where they are charged depending on their usage of the said OCaml application.

In either of these models, a common issue that the developers of the OCaml application usually face is when a user's payment fails. These commonly occur when the user's credit card information is invalid, when the user's credit card has expired, or when the user's credit card has been declined by the bank. In addition, in some cases, users use one-time credit cards only valid for a single payment and not recurring payments.

Whether the payment failure is intentional or unintentional, it can cause significant issues for the OCaml application and the user. For example, if the user is heavily dependent on the application and their payment fails, they may not be able to use it. As a result, they may be forced to cancel their subscription, commonly called churn. In addition, if the payment failure is unintentional, the user may not be aware of the issue and may not be able to use the application until they resolve it.

Therefore, tracking and monitoring failed payments in your OCaml application is essential to ensure that the user is aware of the issue and can resolve it before it causes any significant problems. Fortunately, here at LogSnag, we have created a powerful solution for this problem. LogSnag is a powerful, real-time event tracking tool that works seamlessly with any OCaml application. With LogSnag, you can set up event tracking for anything you want and track when a user's payment fails in your OCaml application in real time. You may also set up optional rules to notify you and your team when a user's payment fails.

LogSnag also allows you to track user journeys and create a timeline of their actions to monitor the users' payment history and any other activity they have done in your application. This way, you can always track the activity of a specific user, such as when their payment fails and any other activity they have done in your application.

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

Use the following code snippet to connect LogSnag to your OCaml application. Please don't forget 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\":\"billing\",\"event\":\"Payment Failed\",\"description\":\"A 19.99$ payment failed for john@example.com\",\"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

We strongly believe that event tracking should be simple and accessible to every developer and team. Hence, we have worked hard to create the next generation of event tracking tools.

LogSnag provides powerful features such as cross-platform push notifications, event filtering, user and product journeys, charts, insights, and more. In addition, LogSnag is flexible and easy to use, making it a great companion for your OCaml applications.

LogSnag provides a generous free plan to get you started with event tracking. You can also check out our pricing page to see our paid plans. So don't hesitate to give us a try and let us know what you think!

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 memory usage in your OCaml application
8. Monitor MySQL downtime in your OCaml application
9. Monitor when a new feature is used in your OCaml application
10. Monitor your Postgres downtime in your OCaml application
11. Monitor Redis downtime in your OCaml application
12. Monitor suspicious activity in your OCaml application
13. Monitor when a user exceeds the usage limit for your OCaml service
14. Monitor when a user is being rate limited in your OCaml application
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