Blogs
Read published articles from MarkStack writers.
Master backend security by understanding the mechanics behind real-world attacks and their defenses. Explore SQL Injection, NoSQL Injection, XSS, CSRF, SSRF, BOLA/IDOR, JWTs, Sessions, Password Security, Race Conditions, API Security, and production hardening through practical examples.
Learn how a level-by-level BFS eliminates the N+1 query problem by batching database queries, making hierarchical tree traversal faster and more scalable.
Explore why backend services shouldn't stop abruptly. Learn how operating systems signal processes, how servers drain connections, clean up resources, and shut down safely with a real Node.js example.
Understand how modern backend teams use structured logging, metrics, distributed tracing, and production debugging with OpenTelemetry and modern observability tools.
Learn how production backends manage configuration from environment variables and secrets to feature flags, validation, and environment-specific settings.
How modern systems handle thousands of requests efficiently and the trade-offs behind the most common concurrency models.
Learn how production systems handle database failures, API outages, validation errors, and unexpected exceptions through centralized error handling, recovery strategies, monitoring, and graceful degradation.
Learn why traditional SQL searches slow down at scale, how inverted indexes work, why relevance scoring matters, and when to use PostgreSQL Full-Text Search v/s Elasticsearch for production search workloads.
Exploring application architectures, synchronization models, and the role of CRDTs in building collaborative local-first software
Understanding how local-first software enables offline-first experiences, real-time sync, and user-owned data.
Learn how caching works across hardware, networks, and backend applications, including CDNs, Redis, cache-aside patterns, eviction policies, and real-world scaling strategies.
Learn how producers, brokers, and workers power scalable backend systems with retries, DLQs, idempotency, and fault-tolerant asynchronous processing.
Learn database fundamentals, PostgreSQL, schema design, migrations, querying, indexing, and triggers for building scalable backend systems.
Build clean, predictable REST APIs with proper URL structure, HTTP methods, pagination, filtering, and scalable design patterns.
Learn how production backends structure requests using handlers, services, repositories, middleware, and request context to build clean, scalable, and maintainable systems.
From request validation to data transformation, learn the patterns that make APIs secure, maintainable, and resilient.
Learn how to build a scalable Redis-backed rate limiter with Express from connection handling and route-specific limits to fail-open strategies, monitoring, and production best practices.
Master authentication and authorization fundamentals: historical context, sessions, JWTs, OAuth 2.0, OpenID Connect, RBAC, and security best practices for building secure backend systems.
Master serialization fundamentals: JSON, data formats, cross-language communication, and OSI model context for robust backend systems.
Master HTTP routing: static and dynamic routes, path vs query parameters, nested resources, versioning, and catch-all handlers for scalable APIs.
Master HTTP fundamentals: methods, headers, status codes, CORS, caching & TLS to build reliable, scalable backend systems.
Learn what a backend is, how requests flow through DNS, firewalls & servers, and why backend logic can't live in the frontend.