https://takao.blog/en/tags/logging/Recent content in Logging on Commentary of TakaoHugo -- gohugo.ioenCommentary of TakaoSat, 13 Jun 2026 23:11:50 +0900https://takao.blog/en/web/nodejs-logging/Tue, 06 Aug 2024 00:00:00 +0900https://takao.blog/en/web/nodejs-logging/<img src="https://takao.blog/img/thumnail.webp" alt="Featured image of post Node.js Logging Best Practices: Structured and Scalable" /><p>Production-grade logging is one of the most overlooked aspects of Node.js application development. While <code>console.log</code> works for debugging locally, it falls apart in distributed environments where logs must be searchable, structured, and actionable. This article covers the essential patterns for building a logging strategy that scales.</p> <h2 id="why-structured-logging">Why Structured Logging </h2><p>Traditional unstructured logging outputs plain text that is difficult to parse programmatically. Consider <code>console.log(&quot;User logged in:&quot;, userId)</code>. Grepping this across hundreds of service instances is slow and error-prone. Structured logging outputs each log event as a JSON object, making it machine-readable and queryable by log aggregation systems.</p>