pino.multistream is not a function

[pavannarayan05]

I am not able to use pino.multistream in my nodejs/typescript project though I am using the latest version of Pino package (8.5.0). I am getting the error - pino.multistream is not a function. Also, when I hover over pino.multistream, I get a pop-up saying "Property 'multistream' does not exist on type 'typeof P'." Can someone please suggest.

---

Below is my code import pino from 'pino' pino.multistream() --> doesnt work.

However, I am getting following suggestion when I do pino. (dot) Not sure why only multistream doesnt work.

LOG_VERSION default destination extreme final levels stdSerializers stdTimeFunctions symbols version

[mcollina]

Thanks for reporting!

Can you provide steps to reproduce? We often need a reproducible example, e.g. some code that allows someone else to recreate your problem by just copying and pasting it. If it involves more than a couple of different file, create a new repository on GitHub and add a link to that.

[pavannarayan05]

Hi, Sure. Have posted the code below. pino.multistream is not being recognized as a valid function. I would like to display logs in console and simultaneously write the logs to a file, with a specific message display pattern

import pinoCaller from 'pino-caller'
import pino from 'pino'

const streams = [
  { stream: process.stdout },
  { stream: pino.destination('commonlogs.log') },]
export const setLog = (job_name: any) => {
  const pinoPretty = pino(
    {
      prettyPrint: {
        messageFormat: `{"job_name":${job_name}, "message":{msg}}`,
      },
    },
    pino.multistream(streams)
  )
  const logObj = process.env.NODE_ENV !== 'production' ? pinoCaller(pinoPretty) : pinoPretty
  return logObj
}

[mcollina]

The following code runs fine on my system:

import pino from 'pino'

console.log(pino.multistream)

[pavannarayan05]

Hi, Thanks. I was able to use multistream after I upgraded Pino npm package. However, I need help in formatting the log text that goes into the file. I was able to format the logs that appears on console using pino-pretty. But I am not sure how the same can be done for the content that goes into file.

Below is my code. I would like to add/remove fields in content writing into file. Any suggestion would be appreciated.

import pino from 'pino'
import pretty from 'pino-pretty'

const streams = [
    {stream: pino.destination('logfilePath')},
    {stream: pretty({
            colorize: true,
            sync: true,
            messageFormat: `{"job_name":${job_name}, "message":{msg}}`
        })}
  ]

  const logger = pino({level: 'info', timestamp: pino.stdTimeFunctions.isoTime}, pino.multistream(streams))
  logger.info("execution begins");

[climba03003]

Not tested, but it should works according to the code

const prettyOption = { colorize: true, sync: true, messageFormat: `{"job_name":${job_name}, "message":${msg}}` }
const streams = [
  // file
  { stream: pretty({ ...prettyOption, destination: 'logfilePath' }) },
  // stdout
  { stream: pretty(prettyOption) }
]

[pavannarayan05]

Thanks @climba03003 . Do you have any suggestion on how to include/exclude specific fields. Below is how my log looks. I would like to remove fields like 'level','pid'.

{"level":30,"time":"2022-09-22T08:59:50.026Z","pid":111,"hostname":"12abc34","caller":"Object.performcheck ([file:///app/server/jobs/trial/index.js:111:1)","msg":"Executing function"}

Below is the code I am using:

  const prettyOption = {   
    messageFormat: `{"job_name":${job_name}, "message":{msg}}` }

  const streams = [
    {stream: pretty({ ...prettyOption, destination: logfilePath })},
    {stream: pretty({
            colorize: true,
            sync: true,
            messageFormat: `{"job_name":${job_name}, "message":{msg}}`
        })}
  ]

const pinoLogger = pino({level: 'info', timestamp: pino.stdTimeFunctions.isoTime}, pino.multistream(streams))

const log = process.env.NODE_ENV !== 'production' ? pinoCaller(pinoLogger) : pinoLogger

log.info('Executing function');

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