@glowing-fishstick/logger

Pino-based structured logging module for glowing-fishstick applications. Provides a configured Pino logger with dev/prod modes and an Express request-logging middleware.

Install

npm install @glowing-fishstick/logger

In development mode, logs are pretty-printed using pino-pretty. Install it as a dev dependency in your project:

npm install -D pino-pretty

pino-pretty is declared as an optional peer dependency. Package managers may not warn if it is missing, but createLogger expects it to be installed in development; to avoid runtime errors and get pretty-printed logs, ensure pino-pretty is present in your devDependencies.

Usage

Application logger

import { createLogger } from '@glowing-fishstick/logger';

const logger = createLogger({ name: 'my-api', logLevel: 'info' });

logger.info('Server starting');
logger.error({ err }, 'Something went wrong');

In development, logs are pretty-printed to stdout and written to logs/<name>.log. In production (NODE_ENV=production), JSON is written to stdout only.

Express request middleware

import express from 'express';
import { createLogger, createRequestLogger } from '@glowing-fishstick/logger';

const logger = createLogger({ name: 'my-api' });
const app = express();

app.use(createRequestLogger(logger));

Each request logs method, path, and response status with duration. Request IDs are read from x-request-id or auto-generated.

License

MIT