Development of a price and stock update module for OpenCart 3

The client needed a commercial module for automatic price and stock updates on OpenCart 3.0. The task involved working with large data arrays, validating files, implementing security measures, and ensuring stable execution of updates in CRON mode.

I developed the module from scratch: I designed the architecture, added several levels of checks, security mechanisms, logging, error management, and notifications. I optimized the import for handling large files and ensured full compatibility with the client's template.

Result: the module reliably updates data without operator intervention, works quickly and without failures, and exceeded the initial requirements of the technical specification in terms of quality and functionality.

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Client's feedback:
"The work was done excellently. The module for OpenCart 3.0 fully meets the standards of commercial development, and in some aspects even exceeds the requirements of the technical specification. The programmer took care of security, implemented additional protection mechanisms, and approached all technical details very responsibly. All corrections were made quickly, communication was at a high level. I definitely recommend collaborating!"