Discord.js - How do you log role changes?

Question

I'm setting up server logs on my Discord bot on Discord.js v12.2.0 and I'm currently trying to set up role logging. I've rummaged around on the internet a bit and I can only find solutions for this on older versions of Discord.js, which obviously don't work on v12.2.0. I've set up the guildMemberUpdate event to log nickname changes, but I simply don't know how to do it for roles. It might just be super simple but I'm not sure how I would go about it.

Here's my code so far:

client.on('guildMemberUpdate', (oldMember, newMember) => {
  if (!oldMember.nickname && newMember.nickname) {
    const membernewnicklog = new Discord.MessageEmbed()
      .setAuthor(`${newMember.user.tag}`, `${newMember.user.displayAvatarURL({ format: "png", dynamic: true })}`)
      .setDescription(`**${newMember} nickname added**`)
      .setFooter(`${newMember.user.username}'s ID: ${newMember.id}`)
      .setTimestamp()
      .setColor('#ffff00')
      .addField("New nickname", newMember.nickname)
    client.channels.cache.get('736996028787589201').send(membernewnicklog);
    return;
  }
  if (oldMember.nickname && !newMember.nickname) {
    const memberremovenicklog = new Discord.MessageEmbed()
      .setAuthor(`${oldMember.user.tag}`, `${oldMember.user.displayAvatarURL({ format: "png", dynamic: true })}`)
      .setDescription(`**${oldMember} nickname removed**`)
      .setFooter(`${oldMember.user.username}'s ID: ${oldMember.id}`)
      .setTimestamp()
      .setColor('#f04747')
      .addField("Old nickname", oldMember.nickname)
    client.channels.cache.get('736996028787589201').send(memberremovenicklog);
    return;
  }
  if (oldMember.nickname && newMember.nickname) {
    const memberchangednicklog = new Discord.MessageEmbed()
      .setAuthor(`${newMember.user.tag}`, `${newMember.user.displayAvatarURL({ format: "png", dynamic: true })}`)
      .setDescription(`**${newMember} nickname changed**`)
      .setFooter(`${newMember.user.username}'s ID: ${newMember.id}`)
      .setTimestamp()
      .setColor('#ff4500')
      .addField("Before", oldMember.nickname)
      .addField("After", newMember.nickname);
    client.channels.cache.get('736996028787589201').send(memberchangednicklog);
    return;
  }
});

And here's what I'm going for: https://i.sstatic.net/DkHqt.jpg (an example from another bot)

Any help would be super appreciated. Thanks!

Answer 1

client.on("guildMemberUpdate", (oldMember, newMember) => {
    // Old roles Collection is higher in size than the new one. A role has been removed.
    if (oldMember.roles.cache.size > newMember.roles.cache.size) {
        // Creating an embed message.
        const Embed = new discord.MessageEmbed();
        Embed.setColor("RED");
        Embed.setAuthor(newMember.user.tag, newMember.user.avatarURL());
        
        // Looping through the role and checking which role was removed.
        oldMember.roles.cache.forEach(role => {
            if (!newMember.roles.cache.has(role.id)) {
                Embed.addField("Role Removed", role);
            }
        });

        client.channels.cache.get("ChannelID").send(Embed);
    } else if (oldMember.roles.cache.size < newMember.roles.cache.size) {
        const Embed = new discord.MessageEmbed();
        Embed.setColor("GREEN");
        Embed.setAuthor(newMember.user.tag, newMember.user.avatarURL());
        
        // Looping through the role and checking which role was added.
        newMember.roles.cache.forEach(role => {
            if (!oldMember.roles.cache.has(role.id)) {
                Embed.addField("Role Added", role);
            }
        });
        client.channels.cache.get("ChannelID").send(Embed);
    }
});