Articles by Vivek Kumar

Learn how to detect and fix N+1 database queries in GraphQL APIs using batching, DataLoader, EF Core logging, and request-level metrics.

Learn how to test .NET WebSocket clients for message handling, fragmented frames, network failures, server shutdowns, and reconnection behavior using unit and integration tests.

Learn how to capture and inspect Playwright traces to diagnose flaky browser tests, investigate timing and network issues, and improve test reliability.

Learn how to use uv to manage Python dependencies, generate uv.lock files, and install reproducible project environments in development and CI/CD.

Learn how cache stampedes occur in C# applications and how to prevent duplicate cache rebuilds with IMemoryCache, HybridCache, semaphores, and distributed coordination.

Learn how to test payment retry logic in C# using idempotency keys, explicit payment states, and simulated timeout scenarios to prevent duplicate charges.

Learn how record changes cause offset pagination duplicates and gaps, and implement stable cursor-based pagination in ASP.NET Core with Entity Framework Core.

Learn how database transactions and Entity Framework Core prevent partial batch updates, handle rollbacks, and maintain data consistency in SQL Server.

Learn how to divide retry responsibility between ASP.NET Core applications and database providers, configure EF Core execution strategies, and avoid duplicate operations.

Learn how to test Entity Framework Core database migrations against production-like data, including representative datasets, integration tests, data-quality checks, and deployment risks.

Learn how OpenTelemetry trace and span IDs connect requests across ASP.NET Core services, including W3C trace context, instrumentation, and OTLP export configuration.

Learn how to use Docker multi-stage builds to publish ASP.NET Core applications with smaller runtime images that exclude SDKs, source files, and build tools.

Learn how Google's Gemini agent coordinates work across Gmail, Drive, Docs, Calendar, and other Workspace apps, including permissions, governance, and project-status reporting workflows.

Compare standard and free-threaded CPython in Python 3.15, check whether the GIL is active, and benchmark CPU-bound threaded workloads.

Learn how CodeQL 2.27.2 models Comdb2 C API statement functions as SQL injection sinks, improving detection of unsafe query construction in C and C++ applications.

Learn how to validate Apigee proxy bundles locally, detect XML and policy-reference issues, run tests, and automate checks with GitHub Actions.

Learn how Node.js BoundSocket can transfer bound network sockets to worker threads, including ownership, lifecycle planning, runtime checks, and worker coordination.

Learn how to prepare projects for Python 3.15 by testing dependencies, native extensions, virtual environments, application behavior, and lazy imports before release.

Learn how to safely adopt Node.js 26.11 by aligning local, CI, and production runtimes, testing dependencies and native modules, and avoiding unrelated upgrades.