How can I create custom transports in Winston logging library?

How can I create custom transports in the Winston logging library?

To create custom transports in Winston, you can extend the TransportStreamOptions and implement the log method.

Can you show me a code example for a custom transport?

Sure! Here's a simple example:

const { TransportStreamOptions } = require('winston-transport');

class MyCustomTransport extends TransportStreamOptions {
  log(info, callback) {
    setImmediate(() => this.emit('logged', info));
    console.log(info.message);
    callback();
  }
}

const winston = require('winston');
const logger = winston.createLogger({
  transports: [new MyCustomTransport()]
});

What are some common use cases for custom transports?

Common use cases include logging to external services, databases, or custom file formats.