Summary The problem revolves around validating arrays with varying validation rules for each element using Yup in a React project with React Final Form and Final Form Arrays. The challenge is to make some elements in the array required while keeping others optional, which seems impossible with Yup’s built-in array validation. Root Cause The root … Read more
Summary Generating ZATCA-compliant e-invoices in Flutter/Dart is a complex task that involves XML generation, QR code creation, and digital signing. To achieve this, developers can utilize a combination of packages and libraries. The dart_xml package can be used for XML invoice generation, while the qr_code package can handle QR code creation. For digital signing, the … Read more
Summary The issue manifests as a NullReferenceException in the authorization module when accessing the Power BI Report Server (PBIRS) API endpoint powerbiserver/reports/api/v2.0/reports (or specific CatalogItems) with a non-admin user. This results in an HTTP 500 Internal Server Error and an OData exception. The error disappears when the user is granted Full Admin rights to the … Read more
Summary A developer observed a mysterious stack trace while profiling a large C++ service with AddressSanitizer (ASan). The trace showed massive memory consumption (259 MB) attributed solely to malloc called from operator new, with no visible user code in the call stack. This indicates that standard stack trace introspection is insufficient for allocations triggered by … Read more
Summary The question revolves around whether it’s acceptable for Application Command Handlers to depend directly on Symfony framework interfaces in a CQRS (Command Query Responsibility Segregation) and Hexagonal Architecture. Two approaches are presented: Option 1 (Pragmatic Symfony), where command handlers depend on Symfony interfaces, and Option 2 (Strict Hexagonal / Port + Adapter), which introduces … Read more
Summary The issue at hand is the limited storage capacity of Google Colab T4 instances, which poses a significant challenge when working with large datasets like the NIH Chest X-ray 14 dataset. The dataset’s size (~42GB compressed) exceeds the available disk space on a standard T4 instance, causing storage issues during the extraction process. Root … Read more
Summary A PrestaShop 8.2.3 deployment triggered security alerts for outdated JavaScript libraries (Moment.js, GSAP, jQuery UI, Bootstrap) bundled with core/modules. These dependencies cannot be directly modified without risking system stability due to PrestaShop’s dependency management constraints. Updating them requires controlled strategies to avoid breaking core functionality while mitigating vulnerabilities. Root Cause Tight coupling with core/modules: … Read more
Summary The question revolves around the release date of Single SPA versions compatible with Angular 19 and Angular 20 for developing new pages in a Single SPA project. Understanding the compatibility and release timeline is crucial for planning and executing the development of new pages. Root Cause The root cause of the inquiry is the … Read more
Production Postmortem: Service Outage Caused by Database Deadlock Summary A cascading database deadlock condition caused a critical API outage for our payment processing service during peak traffic. System downtime lasted 47 minutes with 100% failure rate on checkout requests with incorrect optimistic locking logic as the primary trigger. Root Cause Failure occurred due to: Non-sequential … Read more
Summary The architectural design review process in Sharjah, UAE involves several key standards and regulations to ensure compliance, safety, and coordination between different design aspects. These standards are crucial for a successful project outcome. Root Cause The root cause of a successful design review lies in understanding and adhering to the required local and international … Read more