chaning logging level of a multistream element at runtime

[LiamFry]

Is it possible to change the logging level of a multistream element at runtime? Consider the multistream example ...

var pino = require('pino')
var pretty = require('pino-pretty')
var streams = [
  {stream: fs.createWriteStream('/tmp/info.stream.out')},
  {stream: pretty() },
  {level: 'debug', stream: fs.createWriteStream('/tmp/debug.stream.out')},
  {level: 'fatal', stream: fs.createWriteStream('/tmp/fatal.stream.out')}
]

var log = pino({
  level: 'debug' // this MUST be set at the lowest level of the
                 // destinations
}, pino.multistream(streams))

log.debug('this will be written to /tmp/debug.stream.out')
log.info('this will be written to /tmp/debug.stream.out and /tmp/info.stream.out')
log.fatal('this will be written to /tmp/debug.stream.out, /tmp/info.stream.out and /tmp/fatal.stream.out')

Could I at some point - while running - do something like streams[3].level = 'warn' and expect log.error( ... ) to now also write to /tmp/fatal.stream.out going forward? (I tried this, exactly, and it didn't work; I was wondering if I'm missing some API call to do this properly.)

[mcollina]

I don't think that's supported but I would love to see a PR to add that functionality.

[jsumners]

https://github.com/pinojs/pino-arborsculpture was written long before multistream or in-process transports.