Every article tagged Logging, in one place.
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console.log("user " + id + " failed") is fine on a laptop. In production you need logs that machines can search and filter: JSON with consistent fields, levels and request IDs. Basic setup import pino from 'pino'; export const logger = pino({ level: process.en...
Plain text logs are hard to search at scale. Structured logs attach key-value fields to each message, so you can filter by user_id or status in your log platform. Go's standard library includes log/slog for this. Getting started import ( "log/slog" "os" ) func...
Two related OWASP risks are about what happens when things go wrong: whether your app fails safely, and whether anyone notices an attack in progress. Fail closed When an error happens during a security decision, the safe default is "deny". // Dangerous: an err...
