log4js-node/docs/redis.md

Redis Appender

Stores log events in a Redis database. You will need to include the redis package in your application's dependencies to use this appender.

Configuration

• type - redis
• host - string (optional, defaults to 127.0.0.1) - the location of the redis server
• port - integer (optional, defaults to 6379) - the port the redis server is listening on
• pass - string (optional) - password to use when authenticating connection to redis
• channel - string - the redis channel that log events will be published to
• layout - object (optional, defaults to messagePassThroughLayout) - the layout to use for log events (see layouts).

The appender will use the Redis PUBLISH command to send the log event messages to the channel.

Example

log4js.configure({
  appenders: {
    redis: { type: 'redis', channel: 'logs' }
  },
  categories: { default: { appenders: ['redis'], level: 'info' } }
});

This configuration will publish log messages to the logs channel on 127.0.0.1:6379.