multiFile type is not able to use with the error: type "multiFile" could not be found

[nabe1653]

I uses log4js v6.9.1 in TypeScript project with esbuild.
Already I'm using console and dateFile type logging there.

And I tried to use multiFile type then logger shows below error.

Error: Problem with log4js configuration: ({
  appenders: {
    batchLog: {
      type: 'multiFile',
      base: 'logs/',
      property: 'categoryName',
      extension: '.log'
    }
  },
  categories: { batchLog: { appenders: [ 'batchLog' ], level: 'debug' } }
}) - appender "batchLog" is not valid (type "multiFile" could not be found)

I tried to copy some appenders from other issues so maybe config itself is not missed.
How can I use multiFile option?

[Xalaphs]

Same issue here, did you find a solution ?

[nabe1653]

No, I gave up to use this log-type at that time.

But still using this lib for other log-type so I'm waiting answer too.

[lamweili]

Can you provide a sample index.js with your log4js configuration so that I can replicate it?

I created a typescript.zip project which works fine.

Code:

import * as log4js from "log4js";
log4js.configure({
  appenders: {
    cheese: { type: "file", filename: "cheese.log" },
    batchLog: {
      type: 'multiFile',
      base: 'logs/',
      property: 'categoryName',
      extension: '.log'
    }
  },
  categories: { 
    default: { appenders: ["cheese"], level: "error" },
    batchLog: { appenders: [ 'batchLog' ], level: 'debug' }
  }
});

const logger = log4js.getLogger();
logger.level = "debug";
logger.debug("Some debug messages");

const logger2 = log4js.getLogger("batchLog");
logger2.level = "debug";
logger2.debug("Some debug messages");

console.log('Hello World!');

Command:

npx tsc index.ts && node index.js

Output:

Hello World!

Directory listing:

│   cheese.log
│   index.js
│   index.ts
│   package-lock.json
│   package.json
│
├───logs
│       batchLog.log
│
└───node_modules

[nabe1653]

Hi @lamweili , sorry about late to reply.
In my environment, I feel esbuild may have problem to use only multiple file.

This sample installed esbuild and add npm script to reproduce: esbuild.zip

> npm i
> npm start
Hello World!
> npm run esbuild
}) - appender "batchLog" is not valid (type "multiFile" could not be found)

And I tried to grep node_modules but not found "multiFile" word even there's option name and multiFile.js file.
So I feel esbuild, webpack or some bundle tool may cut off about multiFile.js as no imported.

It may be not your support range but I would be glad if you help us.

[nabe1653]

Hi @lamweili

I may have identified a potential source of the issue and have created a PR to fix it. Could you please review it and merge it if it is satisfactory?