How to Get Node.js Logging Right
FreeBest practices for Node.js logging in modules, apps, and microservices
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About How to Get Node.js Logging Right
This guide from RisingStack Engineering explains how to implement proper logging in Node.js applications, modules, and distributed systems. It covers built-in console logging, the debug module for development, and the winston library for production logging, along with best practices for timestamps, log formatting, destinations, and log levels. Originally published as part of RisingStack's Node.js monitoring platform Trace (now merged with Keymetrics APM).
Key Features
Covers built-in console.log and console.error
Explains the debug module for namespaced logging in modules
Introduces winston library for production logging
Discusses logging requirements: timestamps, format, destinations, log levels
Provides advice for distributed systems and microservice architectures
Pros & Cons
Pros
- Covers both development and production logging strategies
- Provides practical code examples for debug and winston
- Explains why console logging is insufficient for serious applications
Cons
- Article is a tutorial rather than an interactive tool
- Some references to Trace are outdated (merged with Keymetrics in 2017)
Best For
Debugging Node.js modules during developmentConfiguring production logging for Node.js applicationsImplementing structured logging in microservices
FAQ
What is the recommended logging library for Node.js production?
The article recommends the winston library for production logging, as it supports log levels, multiple transports, and structured output.