Await Buffer.from(String) turns out to numbers (Javascript) - arrays

Question

i am trying desperately to solve the following problem. I researched a lot already but nothing really solved the problem (the used language is Javascript with Node.js and react-bootstrap library).
I want to write the following Array to Buffer and save it to IPFS in a way, that i can read it out later.
Nevertheless, the IPFS.Add() Method demand a buffer object, so i struggle to create the buffer object.
Here the array:
const line_supplier = new Array({
Lieferant: "Yello" ,
Postleitzahl: "13752" ,
Arbeitspreis: "5" ,
Grundpreis: "10" ,
Email: "email"
});
Sounds pretty easy, i know. If i do it like this, the console shows me a an empty buffer.
const line_buffer = await Buffer.from(line_supplier);
console.log(line_buffer);
I also tried ..line_supplier[0], or the recommendations with ..'UTF-8' as offset. I also declared the array directly in Buffer.from(declaration).
Either way, i get an error or just a couple of numbers out. Maybe this is already the mistake. I expect the buffer to be readable like a string?
So i converted the line supplier to a string with
const line_string = JSON.stringify(line_supplier);
But even with this string injected in Buffer.from(), i only get a Uint8Array(84) Object out with a lot of numbers.
I dont know what i am missing. It must be something very small. I read all the description of the methods already, but cant find it.
Thanks in advance!!!

Answer 1

The solution is, the following:
const line_string = JSON.stringify(line_supplier);
console.log(line_string);
const line_buffer = await Buffer.from(line_string);
console.log(line_buffer);
await ipfs.add(line_buffer, (err, ipfsHash) => {
console.log(err,ipfsHash);
Hence you get an array saved the way you want!