55 articles tagged #Backend Development
ChatGPT can generate Nginx configs fast, but a single misplaced location block or wrong proxy_pass value silently breaks routing. Here's how to prompt it precisely and validate what comes back.
Stripe metered billing seems simple until your month-end revenue numbers don't add up. Here are the specific gotchas — from usage record timing to invoice finalization windows — that silently corrupt your MRR reports.
ChatGPT can scaffold Redis caching code fast, but it often skips the stampede problem entirely. Here's how to prompt it for production-safe logic that handles lock-based and probabilistic expiry patterns correctly.
You added an index, ran your query, and EXPLAIN ANALYZE still shows a sequential scan. Before you blame PostgreSQL, there are at least six specific reasons this happens — and each one has a clear fix.
A fetch call with no timeout will wait forever if the server stalls or drops the connection silently. Learn exactly why this happens and how to implement abort-based timeouts, retry logic, and proper error handling in JavaScript.
Bulk-inserting rows into PostgreSQL and watching foreign key violations disappear without an error? This guide explains exactly why that happens and how to force PostgreSQL to catch every violation reliably.
Your Django signal handler is running twice, three times, or more — and you have no idea why. This guide breaks down every common cause, from duplicate receiver registration to AppConfig mistakes, and shows you exactly how to stop it.
Your DigitalOcean Managed Postgres cluster starts throwing 'too many clients' errors the moment traffic spikes — and the fix isn't just bumping the pool size. Here's how to diagnose and resolve connection pool exhaustion for good.
ChatGPT can scaffold a webhook handler in seconds, but the result often skips signature verification, ignores retry storms, and silently swallows duplicate events. Here's how to prompt your way to production-ready code.
A misconfigured redirect URI in your OAuth 2.0 flow can hand an attacker a valid authorization code and complete control of any user account. Here's exactly how these attacks work and how to shut them down.
Neon and CockroachDB both promise serverless Postgres that scales to zero. But cold-start latency, free tier limits, and billing surprises differ dramatically. Here's what we found after running both under real workloads.
PostgreSQL's DISTINCT ON picks the first row per group — but 'first' is defined by ORDER BY, not your intuition. If you're getting the wrong row, here's exactly why it happens and how to fix it.