JWT vs Sessions — The Part Nobody Tells You Until It's in Production
JWTs are stateless and fast — but you cannot revoke one. Here's what that costs in production, and when a session cookie is the better call
Jul 22, 202610 min read4
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#backend
Articles tagged with #backend
You Don't Need Redis, Elasticsearch and Kafka Yet — Postgres Does All Three
Most teams add six datastores before they need one. What Postgres already does for caching, search, queues and JSON — and when to actually split.
Jul 22, 202612 min read1
Your API Is Slow and It's Probably N+1 Queries
Your list endpoint runs 51 queries where 2 would do. What an N+1 actually is, why it survives code review, and how to fix it with eager loading.
Jul 22, 202611 min read1
Your Docker Image Is 1.2GB. Here's the 180MB Version.
Most Docker images are huge for three fixable reasons: no multi-stage build, a fat base image, no .dockerignore. Here's the fix, step by step.
Jul 21, 20268 min read
RabbitMQ vs Database Queues — Which One Should You Use?
If you've built backend systems long enough, sooner or later you run into queues. Sending emails, processing notifications, generating reports, syncing data with third-party APIs, handling background
Jun 12, 20265 min read2