How to log "catched" exceptions?

Question

When winston handles uncaught exceptions it prints a nice info of the uncaught exception.How can I do the same on "catched exceptions"?

if (err) {
 // winston. log the catched exception
}

I checked the source and there seems to be a logException method but I don't know how I could use it.

var logger = new winston.Logger({
  transports: [new winston.transports.Console({handleExceptions: true})]
})
var err = new Error('test error.')
logger.logException(err.message) //no method 'logException'

Answer 1

You can emit catched exception back to process, error will by catched by winston.Logger. Example:

process.emit('uncaughtException', err);