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@MSFTserver
Created March 14, 2022 07:19
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simple discord bot to react to every message in a list/array of channel IDs
const Discord = require('discord.js');
const bot = new Discord.Client({ intents: [Discord.Intents.FLAGS.GUILDS] });
// config
let botToken = 'Insert-Bot-Token-Here';
let messageLimit = 2000; //number of messages to look back by not limited by discord.js default of 100
let emoji = '✅'; //emoji to react with
let channelsList = ['952594922194739220','952587451728285746']; //list of channels to react in
let reactionTotal = 0;
async function fetchMore(channel, limit) {
if (!channel) {
throw new Error(`Expected channel, got ${typeof channel}.`);
}
if (limit <= 100) {
return channel.messages.fetch({ limit });
}
let collection = new Discord.Collection();
let lastId = null;
let options = {};
let remaining = limit;
while (remaining > 0) {
options.limit = remaining > 100 ? 100 : remaining;
remaining = remaining > 100 ? remaining - 100 : 0;
if (lastId) {
options.before = lastId;
}
let messages = await channel.messages.fetch(options);
if (!messages.last()) {
break;
}
collection = collection.concat(messages);
lastId = messages.last().id;
}
return collection;
}
// Listener Event: Runs whenever the bot sends a ready event (when it first starts for example)
bot.on('ready', async () => {
console.log('connected')
try {
for (channelID in channelsList) {
console.log('running in channel ${channelsList[channelID]}')
const channel = bot.channels.cache.get(channelsList[channelID]);
if (!channel) return console.error('Invalid ID or missing channel.');
const messages = await fetchMore(channel, messageLimit)
for (const [id, message] of messages) {
reactionTotal++
await message.react(emoji);
}
console.log('Reactions: ${reactionTotal}');
}
console.log('Reactions total: ${reactionTotal}');
console.log('you may now kill the bot.')
} catch(err) {
console.error(err);
}
});
bot.login(botToken);
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