I want to, with discord.js, tell if any given message mentions any user on the server.
Message.mentions is what you're looking for: you can either check .users or .members. If there's at least one element in one of these collections, then someone has been mentioned:
client.on('message', message => {
if (message.mentions.members.first()) // there's at least one mentioned user
else // there's no mentioned user
});
Keep a map of users and match with incoming messages
const Discord = require('discord.js')
const client = new Discord.Client()
const map = {}
client.on('message', msg => {
if (msg.content.indexOf('#') !== -1) {
const users = msg.content.match(/#[a-z\d]+/ig)
users.forEach((user) => {
if (map[users.slice(1)]) {
console.log(`${users.slice(1)} mentioned in server`)
}
})
}
})
client.on('ready', () => {
setInterval (function (){
for(u in Bot.users){
map[client.users[u].username] = true
}
}, 10000)
})
client.login('token')
Related
I seem to be having serious trouble sending DM's to all users with a specific role.
Here is my bot code:
bot.on('message', async message => {
members = message.guild.roles.cache.find(role => role.id === "12345678998765").members.map(m => m.user.id);
members.forEach(member_id => {
sleep(5000).then(() => {
message.users.fetch(member_id, false).then((user) => {
user.send("some message");
});
});
});
});
This code gives me the error:
Cannot read properties of null (reading 'roles')
on this line:
members = message.guild.roles.cache.find(role => role.id === ....
However that is not the issue. When I comment out the sleep command to send the message and output the member roles using:
members.forEach(member_id => {
console.log(member_id)
//sleep(5000).then(() => {
// bot.users.fetch(member_id, false).then((user) => {
// user.send("some message");
// });
//});
});
I get a list returned in the console of all the user ID's.. So it must be returning the roles.
How do I send a message to all users with a specific role ID ?? I want to be able to loop through them and put a wait in to reduce the API requests and spam trigger.
To fix your first issue, message.guild will be null in DM. Make sure it isn't DM, or if it has to be, choose a guild with client.guilds.cache.get("id").
bot.on("message", async message => {
let { guild } = message
if (!guild) guild = bot.guilds.cache.get("id")
//...
})
To fix your other issue, you can run GuildMember#send() rather than getting the IDs and fetching the users
bot.on("message", async message => {
let { guild } = message
if (!guild) guild = bot.guilds.cache.get("id")
let members = guild.roles.cache.get("12345678998765").members
// I used .get here because it's getting by ID
members.forEach(member => {
sleep(5000).then(() => member.send("some message"));
});
})
The above code will get all the GuildMembers and loop through every one of them, "sleeping" for 5 seconds (if the sleep parameter is milliseconds) and send the member a DM
This is the current code that I have, I would like to make it where if you have a certain role then you can bypass the cooldown, also if anyone knows how to make a command that restricts a certain command to a certain channel, instead of having this really long message.channel.id.
const Discord = require('discord.js');
const fetch = require('node-fetch');
const talkedRecently = new Set();
module.exports.run = async(client, message, args, queue, searcher, ) => {
if (talkedRecently.has(message.author.id)) {
message.channel.send("Wait 1 minute before getting typing this again. " +'<#'+ message.author.id + '>');
} else {
switch(args[0].toLowerCase()){
case 'neko':
if(message.channel.id === '739002385531404288'||
message.channel.id === '646849145289834506'||
message.channel.id === '785079847763574794'||
message.channel.id === '782891383361896469'||
message.channel.id === '784417039425994772'){
fetch('https://nekos.life/api/v2/img/lewd')
.then(res => res.json())
.then(json => {
let nekoEmbed = new Discord.MessageEmbed()
.setTitle('Lewd Nekos! (=^･ω･^=)')
.setImage(json.url)
message.channel.send(nekoEmbed)
})
}else{
return}}
talkedRecently.add(message.author.id);
setTimeout(() => {
talkedRecently.delete(message.author.id);
}, 60000);
}
}
module.exports.config = {
name: "hentai",
aliases: ['ht']
}
```
Answering Your First Question:
Simply check if the member has a certain role. If they do, construct your if statement so that it will not fire if they have that role
Make sure to use message.member when checking roles
if (talkedRecently.has(message.author.id) && !message.member.roles.cache.has('bypass role id here')) {
// Your cooldown message
}
Learn more about Roles#has
Answering your 2nd question:
You can have an array of channel id's then use includes to check if any of the id's in the array match the current channel id
const ids = ['id1', 'id2', 'id3', 'id4'] // And so on
if (ids.includes(message.channel.id)) {
// Your Code
}
Learn more about Array.prototype.includes
When a user joins the server, the bot sends a welcome message, i want to take that welcome message's ID and make the bot delete it if the users leaves after he joins. I tried to save the message's id in a variable and make the bot delete the message when the user leaves but without success. I already took a look at the docs, but I really can't understand how to make it.
Define an object to hold the welcome messages by guild and user. You may want to use a JSON file or database (I'd highly recommend the latter) to store them more reliably.
When a user joins a guild...
Send your welcome message.
Pair the the message's ID with the user within the guild inside of the object.
When a member leaves the guild...
Fetch their welcome message.
Delete the message from Discord and the object.
Example setup:
const welcomeMessages = {};
client.on('guildMemberAdd', async member => {
const welcomeChannel = client.channels.get('channelIDHere');
if (!welcomeChannel) return console.error('Unable to find welcome channel.');
try {
const message = await welcomeChannel.send(`Welcome, ${member}.`);
if (!welcomeMessages[member.guild.id]) welcomeMessages[member.guild.id] = {};
welcomeMessages[member.guild.id][member.id] = message.id;
} catch(err) {
console.error('Error while sending welcome message...\n', err);
}
});
client.on('guildMemberRemove', async member => {
const welcomeChannel = client.channels.get('channelIDHere');
if (!welcomeChannel) return console.error('Unable to find welcome channel.');
try {
const message = await welcomeChannel.fetchMessage(welcomeMessages[member.guild.id][member.id]);
if (!message) return;
await message.delete();
delete welcomeMessages[member.guild.id][member.id];
} catch(err) {
console.error('Error while deleting existing welcome message...\n', err);
}
});
To do this you would have to store the id of the welcome message and the user that it is tied to (ideally put this in an object). And when the user leaves you would use those values to delete that message.
Example code:
const Discord = require('discord.js');
const client = new Discord.Client();
const welcomeChannel = client.channels.find("name","welcome"); // Welcome is just an example
let welcomes = [];
client.on('message', (message) => {
if(message.channel.name === 'welcome') {
const welcomeObj = { id: message.id, user: message.mentions.users.first().username };
welcomes.push(welcomeObj);
}
});
client.on('guildMemberRemove', (member) => {
welcomes.forEach(welcome, () => {
if(welcome.user === member.user.username) {
welcomeChannel.fetchMessage(welcome.id).delete();
}
});
});
This only works if the welcome message includes a mention to the user so make sure that's in the welcome message.
Also I can't test this code myself at the moment so let me know if you encounter any problems.
I'm making a new system on my server, i need a way to detect reactions on some msgs, so the user will react to run a function like send msg or something else...
I tried to use reaction collector, but i can't deal with it, this method will not gonna work with old msgs.
I need something simple, to build my system on, so i can use different functions like message.channel.send or message.guild.createChannel, with the ability to detect the msg content, this one is very important.
Reaction collectors can indeed work on messages that have already been sent prior to the client's login. However, these messages must be kept track of and fetched.
Example System (did not test, just an example)
messages.json:
[
{
"guild": "guildIDhere",
"channel": "channelIDhere",
"message": "messageIDhere",
"filter": "(reaction, user) => reaction.emoji.name === '😄' && user.id !== client.user.id;",
"options": { "max": 1 },
"callback": "collected => console.log(collected);"
}
]
index.js:
const messages = require('./messages.json'); // Path may vary
const fs = require('fs');
client.on('ready', () => {
const deleteQueue = [];
for (let i = 0; i < messages.length; i++) {
const guild = client.guilds.get(messages[i].guild);
if (!guild) {
deleteQueue.push(i);
continue;
}
const channel = guild.channels.get(messages[i].channel);
if (!channel) {
deleteQueue.push(i);
continue;
}
const message = channel.fetchMessage(messages[i].message);
if (!message) {
deleteQueue.push(i);
continue;
}
message.createReactionCollector(eval(messages[i].filter), messages[i].options)
.then(eval(messages[i].callback))
.catch(console.error);
}
if (deleteQueue.length > 0) {
for (let i = 0; i < deleteQueue.length; i++) messages.splice(deleteQueue[i], 1);
fs.writeFileSync('./message.json', JSON.stringify(messages));
console.log(`${deleteQueue.length} message(s) are no longer available.`);
}
});
Creating a collector later on:
message.channel.send('React with :smile:')
.then(m => {
const filter = ...;
const options = ...;
const callback = ...;
m.createReactionCollector(filter, options)
.then(callback)
.catch(...);
messages.push({
guild: message.guild.id,
channel: message.channel.id,
message: message.id,
filter: `${filter}`,
options: options,
callback: `${callback}`
});
fs.writeFileSync('./messages.json', JSON.stringify(messages));
})
.catch(console.error);
I think u can use RethinkDB to save messages.
RethinkDB is a Realtime Database, and a simple way to detect realtime messages.
https://www.rethinkdb.com/
I have created a discord bot recently using node js which when I do !purge, responds with Unknown command, do !help to view a list of command but after saying it, it is purging the messages. That is, it works well but posting that error message. I don't know what's the problem please help me
const commando = require('discord.js-commando');
const bot = new commando.Client();
const prefix = '!';
bot.on('message', message => {
let msg = message.content.toUpperCase();
let sender = message.author;
let cont = message.content.slice(prefix.length).split(" ");
let args = cont.slice(1);
if (msg.startsWith(prefix + 'PURGE')) {
async function purge() {
message.delete();
if (isNaN(args[0])) {
message.channel.send('Please input a number of messages to be deleted \n Syntax: ' + prefix + 'purge <amount>');
return;
}
const fetched = await message.channel.fetchMessages({limit: args[0]});
console.log(fetched.size + ' messages found, deleting...');
// Deleting the messages
message.channel.bulkDelete(fetched)
.catch(error => message.channel.send(`Error: ${error}`));
}
purge();
}
});
bot.login('MY BOT TOKEN HERE');
Right now you're using the discord.js-commando library. Any reason you decided to use that library? It looks like you're just using standard discord.js functions like bot.on, message.channel.send, message.channel.fetchMessages, message.channel.bulkDelete...
You should be good just useing the standard discord.js library, starting your code with this:
const Discord = require('discord.js');
const bot = new Discord.Client();
You can find this code on the main "Welcome" page of Discord.js
Edit:
I'm still not sure why you're using discord.js-commando, but that doesn't matter. Here's an example command I came up with using the discord.js-commando library:
const commando = require('discord.js-commando');
class PurgeCommand extends commando.Command {
constructor(client) {
super(client, {
name: 'purge',
group: 'random', // like your !roll command
memberName: 'purge',
description: 'Purge some messages from a Text Channel.',
examples: ['purge 5'],
args: [
{
key: 'numToPurge',
label: 'number',
prompt: 'Please input a number ( > 0) of messages to be deleted.',
type: 'integer'
}
]
});
}
run(msg, { numToPurge }) {
let channel = msg.channel;
// fail if number of messages to purge is invalid
if (numToPurge <= 0) {
return msg.reply('Purge number must be greater than 0');
}
// channel type must be text for .bulkDelete to be available
else if (channel.type === 'text') {
return channel.fetchMessages({limit: numToPurge})
.then(msgs => channel.bulkDelete(msgs))
.then(msgs => msg.reply(`Purge deleted ${msgs.size} message(s)`))
.catch(console.error);
}
else {
return msg.reply('Purge command only available in Text Channels');
}
}
};
module.exports = PurgeCommand
I'd also recommend using a new type instead of integer so you can validate the user's response and make sure they enter a number greater than 0.
If you need help setting up an initial discord.js-commando script, I'd take a look at this repo provided by the Discord team: https://github.com/discordjs/Commando/tree/master/test
You might wanna use this. This purge command is intended for discord.js v11.5.1 and I haven't tested to see if it works on v12, but I think this might work for you. I should say that THIS DELETES ALL THE CONTENT INSIDE THE CHANNEL (Nested command)
exports.run = (bot, message, args) => {
let filter = m => message.author.id === message.author.id;
message.channel.send("Are you sure you wanna delete all messages? (y/n)").then(() => {
message.channel.awaitMessages(filter, {
max: 1,
time: 30000,
errors: ['time']
})
.then(message => {
message = message.first();
if (message.content.toUpperCase() == "YES" || message.content.toUpperCase() == "Y") {
message.channel.bulkDelete(100);
} else if (message.content.toUpperCase() == "NO" || message.content.toUpperCase() == "N") {
message.channel.send("Terminated").then(() => {message.delete(2000)});
} else {
message.delete();
}
})
.catch(collected => {
message.channel.send("Timeout").then(() => {message.delete(2000)});
});
}).catch(error => {
message.channel.send(error);
});
};