How to fix this.uuid is not a function discord.js - discord.js

Question

Hello actually I wanted to make minecraft playerinfo command but I wanted it and I got it on github it was a bit old but I tried to convert it to discord.js v14 code. But I got this error.
TypeError: this.getUuid is not a function
Can you help me please heres the original code: https://github.com/Jystro/Minecraft-info-bot/blob/master/commands/player.js
const mojang = require('mojang-api');
const https = require('https');
const {
EmbedBuilder
} = require('discord.js');
module.exports = {
name: 'playerinfo',
description: 'Diplays player\'s name, uuid, skin, cape and name history',
run: async (client, message, args) => {
//check that a value is sent
if(!args.length) {
message.reply('please specify the player\'s uuid');
return;
}
let uuid = args[0]
//get uuid
this.getUuid(args[0], (err, uuid) => {
if(err) {
message.channel.send('An error occurred. This might be because the player does not exist');
return;
}
//check that uuid exists
mojang.profile(uuid, (err, resp) => {
if(err) {
message.reply('that player\'s uuid does not exist');
return;
}
//get name history
mojang.nameHistory(uuid, (err, resp1) => {
if(err) {
message.reply('there was an error trying to retrieve the data');
console.log(err);
return;
}
let nameHistory = [];
resp1.forEach(element => {
nameHistory.push(element.name);
});
nameHistory = nameHistory.join(', ');
//create embed message
const embedMessage = new EmbedBuilder()
.setColor('Random')
.setTitle(resp.name)
.setDescription(resp.name + "'s profile")
.setThumbnail('https://crafatar.com/avatars/' + resp.id + '.png?overlay')
.addFields(
{
name: 'Name',
value: resp.name
},
{
name: 'UUID',
value: resp.id
},
{
name: 'Skin',
value: 'https://crafatar.com/skins/' + resp.id + '.png'
})
.setImage('https://crafatar.com/renders/body/' + resp.id + '.png?overlay')
//check if cape exists
let cape = 'https://crafatar.com/capes/' + resp.id + '.png';
const req = https.request(cape, res => {
if(res.statusCode == 200) {
embedMessage.fields.push({ name: 'Cape', value: cape });
}
embedMessage.fields.push({ name: 'Name history', value: nameHistory });
//send embed
message.channel.send({ embed: embedMessage });
});
req.on('error', err => {
console.log(err);
message.reply('there was an error while retrieving the cape');
})
req.end();
});
});
})
},
//function to get uuid from uuid/name
getUuid(value, cb) {
let error = false;
let regex = /^[a-f0-9]{32}$/i //regex for uuids
if(!value.match(regex)) {
mojang.nameToUuid(value, (err, resp) => {
if(err || !resp.length) {
error = true;
cb(error, null);
return;
}
cb(error, resp[0].id);
});
}
else { cb(error, value); }
}
}

Answer 1

The issue is your usage of the this keyword and arrow functions.
The main takeaway is this:
Arrow functions don't redeclare this, while anonymous functions do.
This means that when you call the run() method somewhere else in the code, the this keyword in the run method will refer to whatever this is in the current context of where it was executed, which isn't what you want.
To redeclare this to your object, you should rewrite your arrow function as an anonymous function.
module.exports = {
run: async function(client, message, args) {
// you can now safely use `this` in this method
}
}