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Latest Articles
6 articles
A practical guide to debugging in modern development
Debugging gets faster when you stop treating it as guessing and start treating it as evidence collection, isolation and verification.
Debugging a 500 error without guessing
A 500 status tells you where the failure surfaced, not what caused it. Use a disciplined sequence to shorten the search.
API design principles that survive framework changes
Stable APIs are built around contracts, predictable failure modes and careful change management — not whichever framework is fashionable this year.
“Authorization code already used”: what OAuth and SSO are telling you
An authorization code is intentionally short-lived and single-use. Reusing it usually means the application is retrying the callback incorrectly or exchanging it more than once.
How to process 5,000 image downloads without crashing your server
Large download jobs fail when they are treated like one browser request. Use queues, bounded concurrency, retries and resumable progress instead.
MySQL HY093: what “Invalid parameter number” actually means
HY093 usually means the SQL placeholders and bound values do not match. The fastest fix is to compare the final SQL contract, not stare at the exception.