How to make bot grab perma server invite link

Question

I'm working on a bot project that has invite feature, currently I'm having trouble with this command that allow bot to grab server perma invite link (that made by owner/admin) and send the invite link into channel where the command is executed or send the link into user dm after they do the command

Here's my code that I used

and here's the result I got https://i.stack.imgur.com/AkoV8.png

const db = require('quick.db');

module.exports = {
    config: {
        name: "addpermaserverinvite",
        category: "misc",
        description: "Get the permanent invite link of your server!",
        accessableby: ["moderators", "admins", "owner"],
        usage: "p!addpermaserverinvite",
        aliases: ["permaserverinvite"],
    }}[enter image description here][1]

    module.exports.run = async (bot, message, args) => {
        let invite = new MessageEmbed()
            .setColor('ORANGE')
            .setTitle('Here is your permanent invite link!')
            .setDescription(`${message.guild.name}'s permanent invite link is: ${message.guild.invite}`)
            .setFooter('PhoeniX Bot Invite Link')
            .setTimestamp()
        message.channel.send(invite)
    }

Answer 1

Assuming that there is only 1 invite created by the owner, you can use the below code. If there is more than one, this will not work

...
module.exports.run = async (bot, message, args) => {
    const owwerId = message.guild.ownerId
    const invite = await message.guild.invites.fetch().then(invites => invites.find(inv => inv.inviterId === owwerId))
    const inviteEmbed = new MessageEmbed()
        .setColor('ORANGE')
        .setTitle('Here is your permanent invite link!')
        .setDescription(`${message.guild.name}'s permanent invite link is: https://discord.gg/invite/${invite.code}`)
        .setFooter('PhoeniX Bot Invite Link')
        .setTimestamp()

// if using discord v12
    message.channel.send(inviteEmbed)

    // to DM it
    message.author.send(inviteEmbed)

// if using discord v13
    message.channel.send({
        embeds: [inviteEmbed]
    })

    // to DM it
    message.author.send({
        embeds: [inviteEmbed]
    })
}

Answer 2

Firstly, you can filter invites with option maxAge which is time expiration option and maxUses as how many uses should be. If you want to filter it by infinite expiration time, you can filter it as maxAge: 0.

For fetching invites, you should have "MANAGE_SERVERS" at least.

    let invites = await message.guild.invites.fetch()
    let infiniteInvite = invites.filter(invite => invite.maxAge === 0 && invite.maxUses === 0).first()
    if(infiniteInvite){
        message.channel.send({embeds: [new MessageEmbed().setDescription(`Your invite link for server **${message.guild.name}**: [Go!](https://discord.gg/${infiniteInvite.code})`)]})
    }