问题
Ok, so I searched for a while, but I couldn't find any information on how to delete all messages in a discord channel. And by all messages I mean every single message ever written in that channel. Any clues?
回答1:
Try this
async () => {
let fetched;
do {
fetched = await channel.fetchMessages({limit: 100});
message.channel.bulkDelete(fetched);
}
while(fetched.size >= 2);
}
回答2:
Discord does not allow bots to delete more than 100 messages, so you can't delete every message in a channel. You can delete less then 100 messages, using BulkDelete.
Example:
const Discord = require("discord.js");
const client = new Discord.Client();
const prefix = "!";
client.on("ready" () => {
console.log("Successfully logged into client.");
});
client.on("message", msg => {
if (msg.content.toLowerCase().startsWith(prefix + "clearchat")) {
async function clear() {
msg.delete();
const fetched = await msg.channel.fetchMessages({limit: 99});
msg.channel.bulkDelete(fetched);
}
clear();
}
});
client.login("BOT_TOKEN");
Note, it has to be in a async function for the await to work.
回答3:
Here's my improved version that is quicker and lets you know when its done in the console but you'll have to run it for each username that you used in a channel (if you changed your username at some point):
// Turn on Developer Mode under User Settings > Appearance > Developer Mode (at the bottom)
// Then open the channel you wish to delete all of the messages (could be a DM) and click the three dots on the far right.
// Click "Copy ID" and paste that instead of LAST_MESSAGE_ID.
// Copy / paste the below script into the JavaScript console.
var before = 'LAST_MESSAGE_ID';
var your_username = ''; //your username
var your_discriminator = ''; //that 4 digit code e.g. username#1234
var foundMessages = false;
clearMessages = function(){
const authToken = document.body.appendChild(document.createElement`iframe`).contentWindow.localStorage.token.replace(/"/g, "");
const channel = window.location.href.split('/').pop();
const baseURL = `https://discordapp.com/api/channels/${channel}/messages`;
const headers = {"Authorization": authToken };
let clock = 0;
let interval = 500;
function delay(duration) {
return new Promise((resolve, reject) => {
setTimeout(() => resolve(), duration);
});
}
fetch(baseURL + '?before=' + before + '&limit=100', {headers})
.then(resp => resp.json())
.then(messages => {
return Promise.all(messages.map((message) => {
before = message.id;
foundMessages = true;
if (
message.author.username == your_username
&& message.author.discriminator == your_discriminator
) {
return delay(clock += interval).then(() => fetch(`${baseURL}/${message.id}`, {headers, method: 'DELETE'}));
}
}));
}).then(() => {
if (foundMessages) {
foundMessages = false;
clearMessages();
} else {
console.log('DONE CHECKING CHANNEL!!!')
}
});
}
clearMessages();
The previous script I found for deleting your own messages without a bot...
// Turn on Developer Mode under User Settings > Appearance > Developer Mode (at the bottom)
// Then open the channel you wish to delete all of the messages (could be a DM) and click the three dots on the far right.
// Click "Copy ID" and paste that instead of LAST_MESSAGE_ID.
// Copy / paste the below script into the JavaScript console.
// If you're in a DM you will receive a 403 error for every message the other user sent (you don't have permission to delete their messages).
var before = 'LAST_MESSAGE_ID';
clearMessages = function(){
const authToken = document.body.appendChild(document.createElement`iframe`).contentWindow.localStorage.token.replace(/"/g, "");
const channel = window.location.href.split('/').pop();
const baseURL = `https://discordapp.com/api/channels/${channel}/messages`;
const headers = {"Authorization": authToken };
let clock = 0;
let interval = 500;
function delay(duration) {
return new Promise((resolve, reject) => {
setTimeout(() => resolve(), duration);
});
}
fetch(baseURL + '?before=' + before + '&limit=100', {headers})
.then(resp => resp.json())
.then(messages => {
return Promise.all(messages.map((message) => {
before = message.id;
return delay(clock += interval).then(() => fetch(`${baseURL}/${message.id}`, {headers, method: 'DELETE'}));
}));
}).then(() => clearMessages());
}
clearMessages();
Reference: https://gist.github.com/IMcPwn/0c838a6248772c6fea1339ddad503cce
回答4:
This will work on discord.js version 12.2.0
Just put this inside your client on message event
and type the command: !nuke-this-channel
Every message on channel will get wiped
then, a kim jong un meme will be posted.
if (msg.content.toLowerCase() == '!nuke-this-channel') {
async function wipe() {
var msg_size = 100;
while (msg_size == 100) {
await msg.channel.bulkDelete(100)
.then(messages => msg_size = messages.size)
.catch(console.error);
}
msg.channel.send(`<@${msg.author.id}>\n> ${msg.content}`, { files: ['http://www.quickmeme.com/img/cf/cfe8938e72eb94d41bbbe99acad77a50cb08a95e164c2b7163d50877e0f86441.jpg'] })
}
wipe()
}
回答5:
Here's @Kiyokodyele answer but with some changes.
(async () => {
let deleted;
do {
deleted = await channel.bulkDelete(100);
} while (deleted.size != 0);
})();
回答6:
This will work so long your bot has appropriate permissions.
module.exports = {
name: "clear",
description: "Clear messages from the channel.",
args: true,
usage: "<number greater than 0, less than 100>",
execute(message, args) {
const amount = parseInt(args[0]) + 1;
if (isNaN(amount)) {
return message.reply("that doesn't seem to be a valid number.");
} else if (amount <= 1 || amount > 100) {
return message.reply("you need to input a number between 1 and 99.");
}
message.channel.bulkDelete(amount, true).catch((err) => {
console.error(err);
message.channel.send(
"there was an error trying to prune messages in this channel!"
);
});
},
};
In case you didn't read the DiscordJS docs, you should have an index.js file that looks a little something like this:
const Discord = require("discord.js");
const { prefix, token } = require("./config.json");
const client = new Discord.Client();
client.commands = new Discord.Collection();
const commandFiles = fs
.readdirSync("./commands")
.filter((file) => file.endsWith(".js"));
for (const file of commandFiles) {
const command = require(`./commands/${file}`);
client.commands.set(command.name, command);
}
//client portion:
client.once("ready", () => {
console.log("Ready!");
});
client.on("message", (message) => {
if (!message.content.startsWith(prefix) || message.author.bot) return;
const args = message.content.slice(prefix.length).split(/ +/);
const commandName = args.shift().toLowerCase();
if (!client.commands.has(commandName)) return;
const command = client.commands.get(commandName);
if (command.args && !args.length) {
let reply = `You didn't provide any arguments, ${message.author}!`;
if (command.usage) {
reply += `\nThe proper usage would be: \`${prefix}${command.name} ${command.usage}\``;
}
return message.channel.send(reply);
}
try {
command.execute(message, args);
} catch (error) {
console.error(error);
message.reply("there was an error trying to execute that command!");
}
});
client.login(token);
来源：https://stackoverflow.com/questions/48228702/deleting-all-messages-in-discord-js-text-channel