Preventing Duplicate Requests in Laravel: The AtomicLockMiddleware
How to Handle Multiple Request Collisions and Keep Your Laravel App Running Smoothly
If you ever developed a web app in Laravel, you must have faced one such problem which is rather common: handling of duplicate requests currently being processed. It’s that trivial problem, but it may lead to data inconsistency, a failed transaction, or-what’s worse-a poor user experience. Imagine your application handling some form submission twice. You’d end up with duplicate records or maybe even duplicated payments, which would be a huge headache both for you and your users.
For this, we need to ensure each request should be processed one at a time, especially when the action is sensitive, such as making any payment or updating something. One of the solutions is by using an atomic lock. In this post, I am going to walk you through how I implemented a simple a middleware in Laravel to handle such scenarios. This middleware will allow processing of only one request from any particular user at one time for specific actions.
Let’s take a closer look into how it works and why you might want to use it in your projects.
