change author of mp3 file - node.js

Question

I'd like to set the author of a mp3 file based on the data sent by the user.
So far, I managed to get the data sent by the user (hardly an exploit anyway), but I can't manage to change the author of the file. I've tried using both node-id3 package and ffmetadata package, as suggested by this answer, but none of this worked.
The node-id3 approach
Here is a part of code that I wrote for the node-id3 approach, and whille the tags shown in readTags are indeed the ones that I added in the update method, it doesn't change the author of the file when I read it on my computer (with itunes) or on my android phone (with samsung music), which means this approach doesn't work.
const NodeID3 = require('node-id3')
//getting the filename and fileAuthor, as well as creating the file on the server
let tags = {
title: filename,
composer: fileAuthor,
artist: fileAuthor,
remixArtist: fileAuthor,
conductor: fileAuthor,
originalArtist: fileAuthor,
}
let success = NodeID3.update(tags, toBeDownloadedFilePath)
console.log(success)
let readTags = NodeID3.read(toBeDownloadedFilePath)
console.log(readTags)
the ffmetadata approach
Here is the same part written with the ffmetadata approach :
const ffmetadata = require("ffmetadata");
//getting the filename and fileAuthor, as well as creating the file on the server
let tags = {
artist: fileAuthor,
}
ffmetadata.write(toBeDownloadedFilePath, tags, function(err) {
if (err) console.error("Error writing metadata", err);
else console.log("Data written");
});
and with this approach, I'm getting the error :
[mp3 # 0x7f90f8000000] Format mp3 detected only with low score of 1, misdetection possible!
[mp3 # 0x7f90f8000000] Failed to read frame size: Could not seek to 1026.
music1.mp3: Invalid argument
(music1.mp3 being my filename), and my mp3 file is perfectly recognised by all audio reader with which I tested it.
Thank you very much for your help.

Answer 1

So I finally found where was the problem (at least with the node-id3 approach) :
to better understand it, I'll add some details to the creating the file on server step.
Here was my unfunctional code :
const NodeID3 = require('node-id3')
const fs = require('fs-extra'); // file system
fs.ensureFileSync(toBeDownloadedFilePath); //because I need to create the file if it doesn't exist
const toBeDownloadedFile = fs.createWriteStream(toBeDownloadedFilePath);
//the way the audio stream is created isn't relevant, but if you're interested, it's a youtube stream, as per https://www.npmjs.com/package/youtube-audio-stream
let fileWriteStream = audioStream.pipe(toBeDownloadedFile)
let tags = {
title: filename,
composer: fileAuthor,
artist: fileAuthor,
remixArtist: fileAuthor,
conductor: fileAuthor,
originalArtist: fileAuthor,
}
let success = NodeID3.update(tags, toBeDownloadedFilePath)
console.log(success)
let readTags = NodeID3.read(toBeDownloadedFilePath)
console.log(readTags)
And the problem was that my tags were written but immediately deleted by the audiostream.pipe
the solution was therefore quite simple, and I ended up with this code :
const NodeID3 = require('node-id3')
const fs = require('fs-extra'); // file system
fs.ensureFileSync(toBeDownloadedFilePath); //because I need to create the file if it doesn't exist
const toBeDownloadedFile = fs.createWriteStream(toBeDownloadedFilePath);
let fileWriteStream = audiSstream.pipe(toBeDownloadedFile)
fileWriteStream.on('finish', () => {
let tags = {
title: filename,
artist: fileAuthor,
}
NodeID3.update(tags, toBeDownloadedFilePath)
//any additional action, in my case, send the file for a download
})
Hope this helps people with similar problem.