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Discord.js || Can bot track ban list?

There are a lot of to ban a user in a server, you can do it manually or with another bot. I want my bot to scan a banlist, and if someone will get banned, it will send a message "user (id) has been banned
I started writing smt but now, I had no idea what can I do to check it.
EDIT: It's working now, but it still need to find this user id.
client.on('guildBanAdd', message => {
client.user.cache.find() //idk how to define it
const channel1 = client.channels.cache.find(channel => channel.id === "158751278127895");
channel1.send('12512');
})

You don't have to fetch bans because the guildBanAdd event parses a GuildBan object,which als includes a User object.
client.on('guildBanAdd', ban => {
console.log(ban.user.username); // Username
})
message.channel won't work because there isn't a message object.
If you want to get the executor (moderator) who performed the ban, kick etc.
There is a good guide for this Working with Audit Logs

Discord.js; why does this not add the role?

I'm quite new to Stack Overflow, so excuse me if I do something wrong.
I've been working on Discord bots lately, and for my server I want to make a verification bot. I've got a large piece of the code all done and dusted, but now the important part doesn't work, and I don't know why.
My code:
const Discord = require("discord.js");
const client = new Discord.Client({ partials: ["MESSAGE", "CHANNEL", "REACTION"]});
const prefix = "v!";
client.on("ready", async () => {
console.log(`Logged in as ${client.user.tag}`);
client.user.setActivity("v!verify | Verify in #🔐┃verify-here", {type: "LISTENING"});
});
client.on("message", async(msg) => {
const args = msg.content.slice(prefix.length).trim().split(' ');
const command = args.shift().toLowerCase();
if(command === 'svm') { // svm = send verification message
if (msg.member.id !== '434239200607600651') return;
const sEmbed = new Discord.MessageEmbed()
.setTitle("Welcome to **aSpiv's Network**!")
.setDescription("aSpiv's Network is a place to hang out, talk and have fun with friends, family and strangers. Our goal is to make this community as friendly and welcoming as possible. Please, remember the human.")
.addField("🎗 Community Guidelines", "TL;DR Use common sense. If you think you'll get a warning for it, don't do it!\n\nTreat everyone with respect. This is the #1 rule of this server. Absolutely no harassment, witch hunting, sexism, racism, or hate speech will be tolerated.\n\nNo spam or self-promotion (server invites, advertisements, etc) without permission from a staff member. This includes DMing fellow members.\n\nNo NSFW or obscene content. This includes text, images, or links featuring nudity, sex, hard violence, or other graphically disturbing content. (Except for the places where it's allowed; see at own risk!)\n\nTalk English. We want to make sure everyone can participate in all conversations, so no one feels left out.\n\nDon't earrape in the voice chats. It's annoying for people who actually want to talk.\n\nNo voice changers. If you don't want people to hear your voice, then don't talk at all.\n\nIf you see something against the rules or something that makes you feel unsafe, let staff know. We want this server to be a welcoming place!")
.addField("🔐 Getting Verified", "To agree to the rules and receive permission to view all of our channels and send messages, go to <#792391986799837224> and send \`v!verify\`. You are responsible for reading the contents of this channel before agreeing. By being in this server, you agree to all our rules. These rules are subject to change.\n\naSpiv's Network or aSpiv Staff can not and will not be held responsible for any damages or losses that result from the use of our server. We will help you out the best we can, but we are only humans, too.")
.setColor(Math.floor(Math.random()*16777215))
msg.channel.send(sEmbed)
msg.delete();
}
if(command === 'verify') {
let sEmbed = new Discord.MessageEmbed()
.setTitle("Get Verified")
.setDescription("Click on the emoji below to get verified! Make sure you've read the embed in <#791281485276905492>!")
.setColor(Math.floor(Math.random()*16777215))
let m = await msg.channel.send(sEmbed)
m.react('✅')
}
return;
});
client.on("messageReactionAdd", async(reaction, user) => {
if(reaction.message.partial) await reaction.message.fetch();
if(reaction.partial) await reaction.fetch();
if(user.client) return;
if(!reaction.message.guild) return;
if(reaction.emoji.name === '✅') {
await reaction.message.guild.members.cache.get(user.id).roles.add(r => r.id === "792395200676495371")
}
})
client.login("n0t.4-r3al_t0k3n")
Does anyone see the mistake here? It should send a message, react to that message with ✅ (That part works), but when I react with the message too, it should give me a role, but it doesn't.
Thanks in advance for your help!

The Problem
The issue is in your messageReactionAdd event handler, which I assume you must already know given the only part of your code that isn't working is the code's response to your reaction. In that part of your code, you are doing if (user.client) return;. This line is incorrect, and will always return (because user.client is always true).
I'm guessing you want to return if the user that reacted is a bot. But user.client doesn't return whether or not the user is a bot; it returns the Client that created the user variable. Essentially, it returns your client variable. And since the User object stored in the user variable is always created by your client, that if statement will always return and prevent your actual role-adding code from occurring (just like what if (true) return; would do).
The Solution
Here's how to fix it, such that it actually checks if the user is a bot or not instead of trying to check if the client exists or not:
client.on("messageReactionAdd", async(reaction, user) => {
if(reaction.message.partial) await reaction.message.fetch();
if(reaction.partial) await reaction.fetch();
if(user.bot) return;
if(!reaction.message.guild) return;
if(reaction.emoji.name === '✅') {
await reaction.message.guild.members.cache.get(user.id).roles.add(r => r.id === "792395200676495371")
}
})
Simply changing user.client to user.bot will solve your issue, or will at the very least allow your role-adding code to actually run and allow you to see if there are any additional errors.
Relevant Resources
https://discord.js.org/#/docs/main/stable/class/User?scrollTo=bot
https://discord.js.org/#/docs/main/stable/class/User?scrollTo=client

How to fix "Problem with Reactions (Restart bot)"

I've a problem with a reaction reply System.
I want that when a user adds a reaction, that replies to a message, except that when the bot reboots it is no longer detected by the bot.
Do you know how to fix this problem?
Here is my current code :
bot.on("messageReactionAdd", function(messageReaction, user){
if(messageReaction.message.content === "Message"){
if(user.bot){return}
messageReaction.message.reply("It works.")
}
})
bot.on("message", function(message){
if(message.content.startsWith(prefix + "test")){
message.delete()
message.member.createDM().then(m => m.send("Message").then(m => m.react("✅")))
}
}

on the latest version of discord.js, you can use the Partial Events to accomplish this.
According to the doc (https://discord.js.org/#/docs/main/master/topics/partials):
Partials allow you to receive events that contain uncached instances, providing structures that contain very minimal data. For example, if you were to receive a messageDelete event with an uncached message, normally Discord.js would discard the event. With partials, you're able to receive the event, with a Message object that contains just an ID.
What you need to do is
const Discord = require('discord.js');
// add "partials" in the bot options to enable partial events
const client = new Discord.Client({"partials": ['CHANNEL', 'MESSAGE']});
[...]
client.on("messageReactionAdd", async function(messageReaction, user){
// fetch message data if we got a partial event
if (messageReaction.message.partial) await messageReaction.message.fetch();
if(messageReaction.message.content === "Message"){
if(user.bot){return}
messageReaction.message.reply("It works.")
}
})
Doing this, you must be careful on your client.on("message", ...) calls, to avoid accessing data or method that are not available.
there is a boolean message.partial that you can use to discard partial message when you don't need them.

Strings/Arguments for a new person

I need help with a command, for example, if someone writes
" !report #user Spamming " How can I do so my discord account gets a message from the bot about =
Who reports who and for what reason
I've tried watching videos and posts but I can't get my head around it
client.on('message', async function(message) {
if (message.content.startsWith(prefix + "report")) {
const user = await client.fetchUser(args[1].match(/^<#!?(\d+)>$/)[1]);
if (!user) return message.channel.send('Oops! Please mention a valid user.');
const reason = args.slice(2).join(' ');
const me = await client.fetchUser('123456890'); //My id
me.send(`${message.author} reported ${user} for: \`${reason}\``)
.catch(err => console.error(err));
}
}
)
I want for example
In channel = !report #patrick#4245 He is spamming
Then The bot sends a message to me
#fadssa#2556 Reported #patrick#4245 Reason = He is spamming

Before just copying this code, let's actually think this through...
So, let's start by first getting everything we need for the message. First, we should retrieve a User from the argument provided. We do this by comparing the string to that of a mention and picking out the ID. If one doesn't exist, we return an error telling the user to mention someone.
Now, assuming you already have your arguments declared (if not, see this guide to help), we can simply put together the arguments used for the reason. To do so, we should use Array.slice() and then join those words with Array.join().
Then, since we want the bot to send you a DM, we'll have to find you in the Discord world. For this, we can use client.fetchUser().
Now, we can just send you the DM and you'll be alerted of all reports.
/*
* Should be placed within your command's code, after checking required arguments exist
* Assuming 'client' is the Discord Client and 'args' is the array of arguments
* Must be within an async function to use 'await'
*/
const user = await client.fetchUser(args[1].match(/^<#!?(\d+)>$/)[1]); // see below
if (!user) return message.channel.send('Oops! Please mention a valid user.');
const reason = args.slice(2).join(' ');
const me = await client.fetchUser('189855563893571595'); // replace with your ID
me.send(`${message.author} reported ${user} for: \`${reason}\``))
.catch(err => console.error(err));
Although it may look confusing, using regex is a much better option than message.mentions. There's plenty of whack examples where seemingly perfect code will not return the expected user, so this is why I would definitely choose retrieving the ID from a mention myself.

Sending private messages to user

I'm using the discord.js library and node.js to create a Discord bot that facilitates poker. It is functional except the hands are shown to everyone, and I need to loop through the players and send them a DM with their hand.
bot.on("message", message => {
message.channel.sendMessage("string");
});
This is the code that sends a message to the channel when any user sends a message. I need the bot to reply in a private channel; I've seen dmChannel, but I do not understand how to use it. I have the username of the member that I want to send a message to.
An example would be appreciated.
Edit:
After looking around for a user object, I found that I can get all of the users using the .users property of the client (bot). I will try using the user.sendMessage("string") method soon.

In order for a bot to send a message, you need <client>.send() , the client is where the bot will send a message to(A channel, everywhere in the server, or a PM). Since you want the bot to PM a certain user, you can use message.author as your client. (you can replace author as mentioned user in a message or something, etc)
Hence, the answer is: message.author.send("Your message here.")
I recommend looking up the Discord.js documentation about a certain object's properties whenever you get stuck, you might find a particular function that may serve as your solution.

To send a message to a user you first need to obtain a User instance.
Obtaining a User instance
use the message.author property of a message the user sent .
call client.users.fetch with the user's id
Once you got a user instance you can send the message with .send
Examples
client.on('message', (msg) => {
if (!msg.author.bot) msg.author.send('ok ' + msg.author.id);
});
client.users.fetch('487904509670337509', false).then((user) => {
user.send('hello world');
});

The above answers work fine too, but I've found you can usually just use message.author.send("blah blah") instead of message.author.sendMessage("blah blah").
-EDIT- : This is because the sendMessage command is outdated as of v12 in Discord Js
.send tends to work better for me in general than .sendMessage, which sometimes runs into problems.
Hope that helps a teeny bit!

If your looking to type up the message and then your bot will send it to the user, here is the code. It also has a role restriction on it :)
case 'dm':
mentiondm = message.mentions.users.first();
message.channel.bulkDelete(1);
if (!message.member.roles.cache.some(role => role.name === "Owner")) return message.channel.send('Beep Boing: This command is way too powerful for you to use!');
if (mentiondm == null) return message.reply('Beep Boing: No user to send message to!');
mentionMessage = message.content.slice(3);
mentiondm.send(mentionMessage);
console.log('Message Sent!')
break;

Just an FYI for v12 it's now
client.users.fetch('487904509670337509', false).then((user) => {
user.send('heloo');
});
where '487904509670337509' is an id number.

If you want to send the message to a predetermined person, such as yourself, you can set it so that the channel it would be messaging to would be their (your) own userID. So for instance, if you're using the discord bot tutorials from Digital Trends, where it says "to: ", you would continue with their (or your) userID. For instance, with how that specific code is set up, you could do "to: userID", and it would message that person. Or, if you want the bot to message you any time someone uses a specific command, you could do "to: '12345678890'", the numbers being a filler for the actual userID. Hope this helps!

This is pretty simple here is an example
Add your command code here like:
if (cmd === `!dm`) {
let dUser =
message.guild.member(message.mentions.users.first()) ||
message.guild.members.get(args[0]);
if (!dUser) return message.channel.send("Can't find user!");
if (!message.member.hasPermission('ADMINISTRATOR'))
return message.reply("You can't you that command!");
let dMessage = args.join(' ').slice(22);
if (dMessage.length < 1) return message.reply('You must supply a message!');
dUser.send(`${dUser} A moderator from WP Coding Club sent you: ${dMessage}`);
message.author.send(
`${message.author} You have sent your message to ${dUser}`
);
}

Make the code say if (msg.content === ('trigger') msg.author.send('text')}