Snippet: Discord captcha verification

Discord captcha verification
onlyme — emmanyel368
This snippet will prevent any bot raid on your server. Just set the verify role and you are done! Run the command !verify and follow the steps!
const lib = require('lib')({token: process.env.STDLIB_SECRET_TOKEN});

let event = context.params.event;
//If you copied the code change the value to the role id
let VERIFY_ROLE = process.env.VERIFY_ROLE;

//user id who triggerd the command
let user = context.params.event.author.id;

//getting the key value of the user
let captcha = await lib.utils.kv['@0.1.16'].get({
  key: `captcha_${user}`,
});
if (!event.member.roles.includes(VERIFY_ROLE)) {
  //checking if does not have verify role
  if (!captcha) {
    //checking if the key isn't set already

    //all the random numbers
    var a = Math.ceil(Math.random() * 9) + '';
    var b = Math.ceil(Math.random() * 9) + '';
    var c = Math.ceil(Math.random() * 9) + '';
    var d = Math.ceil(Math.random() * 9) + '';
    var e = Math.ceil(Math.random() * 9) + '';

    //addinng them all into one var
    var all = a + b + c + d + e;

    //setting the key of the user to the captcha code
    await lib.utils.kv['@0.1.16'].set({
      key: `captcha_${user}`,
      value: `${all}`,
      ttl: 30, //this will make the key expire after 30 seconds so it's more secure. Change it if you want
    });

    //sending code to the user
    await lib.discord.channels['@0.3.0'].messages.create({
      channel_id: `${event.channel_id}`,
      content: ` Please enter this code -> \`${all}\` below \n\n example: \`!verify 12345\` you have 30 seconds`,
    });
  } else {
    //this code bellow gets triggered if the captcha key of the user is already set

    //getting the code after the !verify and making it a string
    let content = event.content.split(' ').slice(1).toString();

    if (content === captcha) {
      //if the code sent is equal to the captcha key of the user

      //giving verify role to user
      await lib.discord.guilds['@0.2.3'].members.roles.update({
        role_id: `${VERIFY_ROLE}`,
        user_id: `${user}`,
        guild_id: `${event.guild_id}`,
      });

      //sending confirmation msg
      await lib.discord.channels['@0.3.0'].messages.create({
        channel_id: `${event.channel_id}`,
        content: `succesfully verified <@${user}> ✅`,
      });

      //clearing the key of the user (so you save kv storage)
      await lib.utils.kv['@0.1.16'].clear({
        key: `captcha_${user}`,
      });
    } else {
      //if the code sent is wrong
      await lib.discord.channels['@0.3.0'].messages.create({
        channel_id: `${event.channel_id}`,
        content: `incorrect code! Please enter \`!verify ${captcha}\` \n\n you have less than 30 seconds!`,
      });
    }
  }
} else {
  //if user already has role
  await lib.discord.channels['@0.3.0'].messages.create({
    channel_id: `${event.channel_id}`,
    content: `You can't verify again :wink:`,
  });
}