@stack-hq/logger

Structured logging with levels, JSON or pretty output, child loggers, automatic redaction of sensitive fields, and a time() helper.

Install

npm install @stack-hq/logger

Usage

import { Logger } from "@stack-hq/logger";

const log = new Logger({ name: "api", level: "info", format: "json" });
log.info("server started", { port: 3000 });

const requestLog = log.child({ requestId: req.id });
requestLog.warn("slow query", { durationMs: 820 });

await log.time("db.query", () => db.users.findMany());

Sensitive fields (password, token, secret, authorization by default) are automatically redacted from logged objects — configure via redactKeys.

License

MIT