fastify/one-line-logger

one-line-logger is a plugin for Fastify, a popular web framework for Node.js. It takes the raw, hard-to-read JSON that Fastify normally spits out when logging requests and reformats it into a clean, single-line message that's easy to scan at a glance. When you build an app with Fastify, it automatically logs details about incoming requests as JSON. That format is great for computers, but tough for humans to parse quickly. This tool transforms that messy block of data into a simple, readable format like: "2022-08-11 01:08:02 - info - GET / - incoming request." You just plug it into your existing Fastify setup, and it handles the formatting automatically. This is built for developers who run Fastify apps and prefer reading their server logs in plain text. If you're staring at a terminal trying to debug why a specific route is failing, scrolling through walls of JSON can be frustrating. With this, you get a clean, chronological list of what hit your server and when, making it much easier to spot problems. The tool includes a few practical options to customize the output. It adds color to your logs by default to help different parts of the message stand out, which is useful when you're scanning a long file. You can also turn the colors off, display only the time instead of the full date, or provide a custom pattern for how the timestamp should look. Beyond the standard log levels like "info" and "error," you can set up your own custom levels with their own colors. For example, if you wanted a specific log type called "foo" highlighted in yellow, the setup makes that straightforward. These options let you tweak the output to fit exactly what you need to see when monitoring your application.