Articles by Saurav Kumar

Learn how Argo CD sync waves and resource hooks control Kubernetes deployment order, including PreSync jobs for database migrations and post-deployment validation.

Learn how Firebase App Check uses attestation tokens to protect Firebase services and custom backends from unauthorized clients, alongside authentication and security rules.

Learn how Interaction to Next Paint (INP) measures web responsiveness, how to diagnose slow interactions in Chrome DevTools, and how to reduce JavaScript and rendering delays.

Learn how to use Playwright screenshot assertions for visual regression testing, configure comparison thresholds, manage baselines, and test responsive UI layouts.

Learn how CSP nonces restrict inline scripts to reduce XSS risk, including secure nonce generation, CSP headers, and ASP.NET Core integration.

Learn how to detect containers running as root, inspect Docker and Kubernetes settings, and enforce non-root execution with least-privilege security checks.

Learn how to build resumable C# file-processing jobs using durable checkpoints, batch commits, idempotency, leases, and retry-safe recovery after worker crashes.

Learn how to test ASP.NET Core webhook delivery during receiver outages, including retries, duplicate events, timeouts, idempotent processing, and recovery.

Learn how to test payment API retries safely using idempotency keys, simulated network failures, and C# examples to prevent duplicate charges.

Learn how to prevent duplicate file processing in C# background workers using reliable file identity, atomic claims, idempotency, durable status tracking, and failure recovery.

Learn how to test distributed workflows when workers crash, including failure injection, process termination, durable state checks, idempotency, and safe recovery.

Learn how to test ASP.NET Core APIs when database operations are slow or unavailable, including timeouts, connection pooling, cancellation, concurrency, and recovery.

Learn how to model API success and error responses with TypeScript discriminated unions, narrow response types safely, and enforce exhaustive switch handling.

Learn to diagnose Java TLS handshake failures by inspecting certificate chains, truststores, expiry dates, hostname validation, and OpenSSL output.

Learn how to enable Azure Managed Identity for an ASP.NET Core app, grant Key Vault access with Azure RBAC, and retrieve secrets using DefaultAzureCredential.

Learn how to create Azure Blob Storage SAS tokens in C#, set short expiry times, restrict permissions, and use user delegation keys for secure temporary blob access.

Learn how to acquire and release Redis distributed locks safely in C#, using expiration times, unique lock tokens, and atomic Lua scripts to prevent stuck or deleted locks.

Learn how EF Core ExecuteUpdate performs bulk database updates without loading entities, and when it is preferable to modifying tracked entities with SaveChanges.

Learn how to configure and apply ASP.NET Core rate limiting policies, choose limiter algorithms, and return HTTP 429 responses for excessive API requests.

Learn to generate Azure Blob Storage SAS tokens in .NET with expiration times, scoped permissions, HTTPS-only access, and user delegation SAS security practices.