nestjs8 min read
NestJS in 2026 — Advanced Patterns for Enterprise-Scale Applications
Master NestJS at scale using DDD principles, CQRS, interceptors, guards, and microservices. This guide covers patterns for enterprise production systems.
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1276 articles
backend5 min read
No Backpressure Mechanism — When Fast Producers Drown Slow Consumers
Your webhook processor receives 10,000 events/second. Your database can handle 500 inserts/second. Without backpressure, your queue grows unbounded, memory fills up, the process crashes, and you lose all the unprocessed events in memory.
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backend4 min read
No Observability Strategy — Flying Blind in Production
Something is wrong in production. Response times spiked. Users are complaining. You SSH into a server and grep logs. You have no metrics, no traces, no dashboards. You''re debugging a distributed system with no instruments — and you will be for hours.
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backend5 min read
No Rate Limiting — One Angry User Can Take Down Your API
A user sends 10,000 requests per minute to your API. No rate limiting. Your server CPU spikes to 100%. Your database runs out of connections. Every other user sees 503s. One script can take down your entire service — and it happens more often than you think.
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backend7 min read
No Rollback Strategy — The Deploy That Can't Be Undone
Error rate spikes after deploy. You need to roll back. But the migration already ran, the old binary can''t read the new schema, and "reverting the deploy" means a data loss decision. Rollback is only possible if you design for it before you deploy.
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