(4.1.0) InnertubeError: Something went wrong at PlayerCaptionsTracklist!

[wukko]

Steps to reproduce

i'm using getBasicInfo function with ANDROID client. no idea which videos in particular cause this error to occur, it seems to happen once in a while without ties to any specific video.

code snippet:

import { Innertube } from 'youtubei.js';
const yt = await Innertube.create();

try {
    info = await yt.getBasicInfo('video id here', 'ANDROID');
} catch (e) {
    console.log(e);
}

Failure Logs

InnertubeError: Something went wrong at PlayerCaptionsTracklist!
This is a bug, please report it at https://github.com/LuanRT/YouTube.js/issues
    at Parser._Parser_printError (node_modules/youtubei.js/dist/src/parser/parser.js:405:18)
    at Parser.parseItem (node_modules/youtubei.js/dist/src/parser/parser.js:242:77)
    at Parser.parseResponse (node_modules/youtubei.js/dist/src/parser/parser.js:185:31)
    at new MediaInfo (node_modules/youtubei.js/dist/src/core/MediaInfo.js:34:29)
    at new VideoInfo (node_modules/youtubei.js/dist/src/parser/youtube/VideoInfo.js:53:9)
    at Innertube.<anonymous> (node_modules/youtubei.js/dist/src/Innertube.js:111:20)
    at Generator.next (<anonymous>)
    at fulfilled (node_modules/youtubei.js/dist/src/Innertube.js:4:58)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5) {
  info: {
    stack: "TypeError: Cannot read properties of undefined (reading 'map')\n" +
      '    at new PlayerCaptionsTracklist (node_modules/youtubei.js/dist/src/parser/classes/PlayerCaptionsTracklist.js:23:64)\n' +
      '    at Parser.parseItem (node_modules/youtubei.js/dist/src/parser/parser.js:237:32)\n' +
      '    at Parser.parseResponse (node_modules/youtubei.js/dist/src/parser/parser.js:185:31)\n' +
      '    at new MediaInfo (node_modules/youtubei.js/dist/src/core/MediaInfo.js:34:29)\n' +
      '    at new VideoInfo (node_modules/youtubei.js/dist/src/parser/youtube/VideoInfo.js:53:9)\n' +
      '    at Innertube.<anonymous> (node_modules/youtubei.js/dist/src/Innertube.js:111:20)\n' +
      '    at Generator.next (<anonymous>)\n' +
      '    at fulfilled (node_modules/youtubei.js/dist/src/Innertube.js:4:58)\n' +
      '    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)'
  },
  date: 2023-03-26T01:24:42.567Z,
  version: '4.1.0'
}

Expected behavior

i expect getBasicInfo to either handle such errors by itself, or emit an error event for me to handle it

Current behavior

getBasicInfo crashes the entire project by throwing an uncatchable error :(

Version

Default

Anything else?

No response

Checklist

• I am running the latest version.
• I checked the documentation and found no answer.
• I have searched the existing issues and made sure this is not a duplicate.
• I have provided sufficient information.

[LuanRT]

getBasicInfo crashes the entire project by throwing an uncatchable error :(

Are you sure this throws an error? These parser warnings are not supposed to crash your program. The only thing that should be affected is the PlayerCaptionsTracklist node, unless you rely on data this node holds somewhere else in your code.

You should still get most of the data (try logging the info object and remove the try-catch to verify this), but the captions prop will be null.

Relevant bits of code:

YouTube.js/src/parser/youtube/VideoInfo.ts

Line 44 in ade5feb

captions?: PlayerCaptionsTracklist;

YouTube.js/src/parser/youtube/VideoInfo.ts

Line 96 in ade5feb

this.captions = info.captions;

YouTube.js/src/parser/parser.ts

Line 471 in ade5feb

static #printError({ classname, classdata, err }: ParserError) {

Affected node:
https://github.com/LuanRT/YouTube.js/blob/main/src/parser/classes/PlayerCaptionsTracklist.ts

Anyway, thanks for reporting! I'll look into fixing it this week.