Programmatic Integration as a transport fails

[altearius]

The Programmatic Integration section currently contains this code example:

const pino = require('pino')
const logger = pino({
  transport: {
    target: 'pino-pretty'
  },
})

logger.info('hi')

The sample currently fails when executed with pino@8.14.1 and pino-pretty@10.0.0 on node 18.16.0:

$ node
Welcome to Node.js v18.16.0.
Type ".help" for more information.
> const pino = require('pino')
undefined
> const logger = pino({
...   transport: {
...     target: 'pino-pretty'
...   },
... })
Uncaught Error: unable to determine transport target for "pino-pretty"
    at fixTarget (/home/...redacted.../node_modules/pino/lib/transport.js:140:13)
    at transport (/home/...redacted.../node_modules/pino/lib/transport.js:114:22)
    at normalizeArgs (/home/...redacted.../node_modules/pino/lib/tools.js:311:16)
    at pino (/home/...redacted.../node_modules/pino/pino.js:87:28)

[mcollina]

Good spot! It seems it does not work from the node.js REPL. Run it from a script.

[mcollina]

Transfered to pino proper because it’s a bug there.

[mcollina]

A PR to fix this would be very welcomed. Supporting the REPL is low priority.

[nemanjahifolks]

I am experiencing exact same issue with exact same versions, I run it from code, not from REPL. Is there a way around this?

error - Error: unable to determine transport target for "pino-pretty"
    at fixTarget (/home/username/Desktop/folks/node_modules/pino/lib/transport.js:140:13)
    at /home/username/Desktop/folks/node_modules/pino/lib/transport.js:93:17
    at Array.map (<anonymous>)
    at Function.transport (/home/username/Desktop/folks/node_modules/pino/lib/transport.js:90:31)
    at eval (webpack-internal:///(api)/./lib/server/logger/logger.ts:52:60)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5) {
  digest: undefined
}

[mcollina]

I cannot reproduce it by running as a script. Did you npm i pino-pretty?

[altearius]

I investigated this further and found I was able to fix the immediate problem by modifying the for loop in the fixTarget function of the lib/transport.js file in this way:

for (const filePath of callers) {
  try {
    const context = filePath === 'node:repl'
      ? process.cwd() + path.sep
      : filePath

    fixTarget = createRequire(context).resolve(origin)
    break
  } catch (err) {
    // Silent catch
    continue
  }
}

If you think this fix is a good one, I can turn it into a PR. I am not sure how to write a unit test for something like this.

[mcollina]

Go ahead and send a PR, we'll chat about the unit test there.

[manireddy4u]

Hello community,

I am using latest node 20.5.1, pino 18.5.0 and pinno-pretty 10.2.0. Here is the snippet for logger.

const logger = require('pino')
({
level: 'debug',
transport: {
target: 'pino-pretty'
},
})

When I am running the package executable which is .exe(created by nexe) I am getting below exception when I run on local the logger works fine. Looking for suggestions. TIA.

Error stack trace:
C:\xxx\LAppMockServer\node_modules\pino\lib\tools.js:311
stream = transport({ caller, ...opts.transport, levels: customLevels })
^^^

SyntaxError: Unexpected token ...
at createScript (vm.js:74:10)
at Object.runInThisContext (vm.js:116:10)
at Module._compile (module.js:533:28)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:503:32)
at tryModuleLoad (module.js:466:12)
at Function.Module._load (module.js:458:3)
at Module.require (module.js:513:17)
at require (internal/module.js:11:18)
at Object. (C:\xxx\LAppMockServer\node_modules\pino\lib\levels.js:11:26)

[github-actions]

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