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Essentials

Deferred reply

Long-running slash commands

Defers the interaction before editing the reply — required for anything that takes more than a few seconds.

Based on discord.js guide — deferred responses

/slow

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Source preview

import {
  Client,
  Events,
  GatewayIntentBits,
  REST,
  Routes,
  SlashCommandBuilder,
  MessageFlags,
} from "discord.js";

const client = new Client({
  intents: [GatewayIntentBits.Guilds],
});

const commands = [
  new SlashCommandBuilder()
    .setName("slow")
    .setDescription("Defers then edits the reply"),
].map((c) => c.toJSON());

client.once(Events.ClientReady, async () => {
  const rest = new REST({ version: "10" }).setToken(process.env.DISCORD_TOKEN!);
  await rest.put(Routes.applicationCommands(client.user!.id), { body: commands });
});

client.on(Events.InteractionCreate, async (interaction) => {
  if (!interaction.isChatInputCommand()) return;
  if (interaction.commandName !== "slow") return;
  await interaction.deferReply({ flags: MessageFlags.Ephemeral });
  await interaction.editReply({ content: "Done!" });
});

client.login(process.env.DISCORD_TOKEN);