What is @types/winston?
@types/winston provides TypeScript type definitions for the winston logging library, enabling developers to use winston with TypeScript and benefit from type checking and autocompletion.
What are @types/winston's main functionalities?
Basic Logging
This feature allows you to create a basic logger that logs messages to the console. The logger is configured with a logging level and a format.
const winston = require('winston');
const logger = winston.createLogger({
level: 'info',
format: winston.format.json(),
transports: [
new winston.transports.Console()
]
});
logger.info('Hello, Winston!');
File Transport
This feature allows you to log messages to a file. The logger is configured with a file transport that writes logs to 'combined.log'.
const winston = require('winston');
const logger = winston.createLogger({
level: 'info',
format: winston.format.json(),
transports: [
new winston.transports.File({ filename: 'combined.log' })
]
});
logger.info('Logging to a file!');
Custom Formats
This feature allows you to create custom log formats. The logger is configured with a custom format that includes a timestamp and a custom message format.
const winston = require('winston');
const { combine, timestamp, printf } = winston.format;
const myFormat = printf(({ level, message, timestamp }) => {
return `${timestamp} [${level}]: ${message}`;
});
const logger = winston.createLogger({
format: combine(
timestamp(),
myFormat
),
transports: [
new winston.transports.Console()
]
});
logger.info('Custom format log message');
Other packages similar to @types/winston
bunyan
Bunyan is another logging library for Node.js that provides a simple and fast JSON logging mechanism. It is similar to winston in terms of functionality but focuses more on JSON logging and has a different API design.
pino
Pino is a fast and low-overhead logging library for Node.js. It is designed to be extremely performant and provides a simple API for logging. Pino is similar to winston but is optimized for speed and efficiency.
log4js
Log4js is a logging library inspired by the Java log4j library. It provides a flexible and configurable logging framework for Node.js applications. Log4js is similar to winston in terms of flexibility and configurability but has a different configuration style.