winston-rollbar-transport

A winston logger transport for Rollbar.

Install

npm install --save winston-rollbar-transport winston

Requires Node v6+

Usage

import winston from 'winston'
import RollbarTransport from 'winston-rollbar-transport'
 
const logger = new winston.Logger({
  transports: [
    new RollbarTransport({
      // required
      rollbarAccessToken: process.env.ROLLBAR_ACCESS_TOKEN,
      rollbarConfig: {
        // optional
        // see https://github.com/rollbar/node_rollbar#configuration-reference
      },
      level: 'info', // log level. defaults to 'info'
    }),
  ],
})
 
// regular logging
logger.info('some message')
 
// logging with custom metadata
logger.info('some message', {
  // req and err are special keys, see below
  somekey: 'somevalue',
})
 
// logging with request data
logger.info('some message', { req })
 
// logging an error
// Important: the second parameter is not optional (see below)
logger.error(err, { err })

Error handling

Since Winston log messages are converted to strings, winston-rollbar-transport will only see a string if logger.error(new Error()) is called and can't therefore report the exception propoerly to Rollbar with rollbar.handleErrorWithPayloadData.

Therefore, to correctly report exceptions, use the err key on the meta field in addition to the message. For example:

logger.error(err, { err })

See ./test directory for usage examples.