javascript - Discord Bot - Can I use guildMember to create a 'personal' variable?

Question

I'm trying to make a level bot in Discord. Basically, what I want to do is to assign a "pts" variable to every person in the server. I have an event handler and command handler in my bot.

Here is my event_handler.js:

const fs = require('fs');

module.exports = (client, Discord) =>{
    const load_dir = (dirs) =>{
        const event_files = fs.readdirSync(`./events/${dirs}`).filter(file => file.endsWith('.js'));
        
        for (const file of event_files) {
            const event = require(`../events/${dirs}/${file}`);
            const event_name = file.split('.')[0];
            client.on(event_name, event.bind(null, Discord, client));
        }
    }

    ['client', 'guild'].forEach(e => load_dir(e));
}

And here is my command_handler.js:

const fs = require('fs');

module.exports = (client, Discord) =>{
    const command_files = fs.readdirSync('./commands/').filter(file => file.endsWith('.js'))

    for(const file of command_files){
        const command = require(`../commands/${file}`);
        if(command.name){
            client.commands.set(command.name, command);
        } else {
            continue;
        }
    }
}

I also have a guildMemberAdd event, which has a guildMember variable, adds a Member role to the guildMember, and say a welcome message. Here it is (it's called guildMemberAdd.js):

module.exports = (Discord, client, guildMember) =>{
    let welcomeRole = guildMember.guild.roles.cache.find(role => role.name === 'Member');

    guildMember.roles.add(welcomeRole);
    guildMember.guild.channels.cache.get(MYCHANNELID).send(`Welcome, <@${guildMember.user.id}>, to our server! ... Check out the rules-cmd channel!`);
}

I was thinking maybe when somebody joins the server I can give them a variable. For example:

module.exports = (Discord, client, guildMember) =>{
    var pts = new guildMember;
    let welcomeRole = guildMember.guild.roles.cache.find(role => role.name === 'Member');

    guildMember.roles.add(welcomeRole);
    guildMember.guild.channels.cache.get(MYCHANNELID).send(`Welcome, <@${guildMember.user.id}>, to our server! ... Check out the rules-cmd channel!`);
}

...but I'm really bad with javaScript and that, I know, will DEFINITELY not work.

Is there a way to do this? If there, is, how do I change it based on a command? (My commands are stored in another folder.)

If you guys need it, here is my ... um ... ordering of files and folders. I'm not really sure what that's called.

HELP IS GREATLY APPRECIATED!!

I don't think you guys need the node module files, right? If you do, please comment.

MY EDIT 1 (BY TYRCNEX): Some of you viewing this question might be saying, "Well there should be other Stack Overflow questions like this, right?" Yes, there is. However, I am a COMPLETE beginner with JS, as I mentioned above. I could spend a year trying to learn the basics of js...

...but I don't have that much time on my hands. I need help with my SPECIFIC problem, and I can't really understand other answers. This is why I'm asking the question. Thank you.

question from:https://stackoverflow.com/questions/66062947/discord-bot-can-i-use-guildmember-to-create-a-personal-variable

Answer 1

First of all you need some type of storage where you can save the lvl's and id's of GuildMembers, I recommend you some of that:

Easy to use: QuickDb, Json DB

The problem with that db's is that they have poor scalability and more they weight more time the queries take to execute.

For your current level that databases will give you the understanding of how it all works, when you have the understanding of how databases work you should look forward for some db's like:Mongo, postgres, etc.

Maybe you don't even need database and you want to save it as object in app's cache I will give you a quick example of how it's done:

var members = {}
//You should know that for level's you shouldn't save all the members on guildmembersJoin 
//Some the members won't last long on the server and even maybe leave right after and you will have 
//a useless row in you db. 
//Your message event
  module.exports = (Discord, client, message) =>{
    members = {
      ...members,
      [message.member.id] : {
        level: members[message.member.id] ? members[message.member.id].level : 0,
        exp: members[message.member.id] ? members[message.member.id].exp : 0 + expformessage
      }
    }
}

Example with quick.db:

const db = require('quick.db');
  module.exports = (Discord, client, message) =>{
    if(!db.get(message.member.id))
      db.set(message.member.id, {'level': 0, 'exp': expformessage})
    else
      db.set(`${message.member.id}.exp`, db.get(`${message.member.id}.exp`) + expformessage )
}