55 articles tagged #Backend Development
Experiencing unexplained CPU spikes in your Node.js service? Learn how to use Clinic.js Flame to identify performance bottlenecks, interpret flame graphs, optimize hot code paths, and improve application responsiveness without relying on guesswork.
ChatGPT-generated queue consumer code looks clean until a malformed message traps your worker in an infinite retry loop and silently starves everything else. Here's how to prompt for the dead-letter, visibility-timeout, and backoff logic that actually makes consumers production-safe.
Your partial index exists, VACUUM has run, and EXPLAIN still shows a sequential scan. The culprit is almost always a type mismatch between your query's WHERE clause and the index predicate. Here's how to diagnose and fix it fast.
Temporal and Inngest both promise durable, fault-tolerant workflows — but they take wildly different approaches to pricing, infrastructure, and developer experience. Here's what actually happens when you put both under real load.
Your INSERT ... ON CONFLICT DO UPDATE is firing on every row, stamping updated_at even when nothing changed. Here's why that happens and exactly how to fix it with a conditional DO UPDATE clause.
Database branching sounds like a solved problem until you try to ship it in a real PR workflow. Here's how PlanetScale and Neon actually behave on branching speed, cost, and day-to-day developer friction.
Your PostgreSQL rank is returning unexpected numbers when multiple rows share the same value in a partition. Here's exactly why RANK(), DENSE_RANK(), and ROW_NUMBER() behave differently on ties — and how to pick the right one.
Team account creation is where SaaS onboarding flows quietly fall apart. Invite emails get lost, roles default wrong, and new members land in broken states. Here's how to find and fix every failure point before it kills activation.
Your user upgraded to Pro, paid the prorated charge, and then quietly got downgraded back to Free by your own billing logic. Here's how to find the bug, trace the cascade, and make sure it never silently strips a paid user's access again.
Supabase Auth is fast to ship but ties you to their platform. Lucia gives you full control but demands you write more plumbing yourself. Here's how each actually performs on DX, flexibility, and real-world lock-in risk.
ChatGPT can scaffold transaction code in seconds, but it routinely gets isolation levels wrong — leaving you exposed to phantom reads you won't catch until production. Here's how to prompt it correctly.
Free-tier users quietly blowing past API call limits or storage caps is a revenue leak that's easy to miss until month-end. Here's how to find the bugs in your quota enforcement logic and close them for good.