Implementing Online/Offline Functionality in a Point of Sale System with Laravel

I developed a point of sale (POS) system called "ultimatepos" using Laravel and MySQL. Now I want to add the functionality of being usable online and offline. The goal is for the system to automatically detect the availability of the Internet connection. If a connection is available, it will operate in online mode; otherwise, it will switch to offline mode. However, once the connection is re-established, the system must synchronize data between the two modes. How can I implement this functionality with Laravel?

martinbean

2 years ago

Level 80

@khalidhaddou Well what have you actually tried…?

You need to build a PWA (progressive web app). Save any offline work to local storage, and then sync records once you detect network connectivity has been restored.

Reference: https://developer.mozilla.org/en-US/docs/Web/API/Navigator/onLine#listening_for_changes_in_network_status

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