表情符号列表命令 Discord.js v12

Question

I created an emoji list command here is my code of the command:

const { MessageEmbed } = require('discord.js');

module.exports = {
    name: "emojis",
    description: "Gets a guild\'s emojis",

    async run (client, message, args) {
 const emojis = [];
    message.guild.emojis.cache.forEach(e => emojis.push(`${e} **-** \`:${e.name}:\``));
 const embed = new MessageEmbed()  
    .setTitle(`Emoji List`)
    .setDescription(emojis.join('\n'))
    message.channel.send(embed)
  }
};

However I get this error in case the characters in the embed exceeds 2048 letters:

(node:211) UnhandledPromiseRejectionWarning: DiscordAPIError: Invalid Form Body
embed.description: Must be 2048 or fewer in length.
    at RequestHandler.execute (/home/runner/Utki-the-bot/node_modules/discord.js/src/rest/RequestHandler.js:170:25)
    at processTicksAndRejections (internal/process/task_queues.js:97:5)
(node:211) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:211) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

Is there any way the bot can still show the emojis and there names. By using discord-menu or like that. I was unable to understand how to do that. Can you help me out? Thanks in Advance

Answer 1

As you can probably tell by the error message, your embed description is too long. You can split your message into several parts by using string.split() and send each shortened string as a separate message. Here's a rudimentary example.

const charactersPerMessage = 2000;
  // we're going to go with 2000 instead of 2048 for breathing room
const emojis = message.guild.emojis.cache.map(e=> { return `${e} **-** \`:${e.name}:\`` }); // does virtually the same thing as forEach()
const numberOfMessages = Math.ceil(emojis.length/charactersPerMessage); // calculate how many messages we need

const embed = new MessageEmbed()
                  .setTitle(`Emoji List`);

for(i=0;i<numberOfMessages;i++) {
  message.channel.send(
    embed.setDescription(emojis.slice(i*charactersPerMessage, (i+1)*charactersPerMessage))
  );
}

Do take note that emojis is now a string rather than an Array .