Hook to uppercase the 'level'

[raboof]

I like how bunyan-logstash-tcp converts the integer loglevel to a string.

I'd like to have uppercase loglevels in logstash, though. Is there a way to do this, perhaps by pre-processing the log object somehow? I've briefly looked at serializers but that doesn't seem to be helpful here.

If not, could we somehow make the translation of the 'level' field configurable in bunyan-logstash-tcp?

[raboof]

I've monkey-patched around it like this for now:

var levels = {
  10: 'TRACE',
  20: 'DEBUG',
  30: 'INFO',
  40: 'WARN',
  50: 'ERROR',
  60: 'FATAL'
};

logstashStream.originalWrite = logstashStream.write
logstashStream.write = function patchedLogstashWrite(entry) {
  if (levels.hasOwnProperty(entry.level)) {
    entry.level = levels[entry.level];
  }
  this.originalWrite(entry);
}

.. but I'm not proud of it :)