nodbot/slash-commands/setnick.js

const { SlashCommandBuilder } = require('@discordjs/builders');
const fn = require('../functions.js');

module.exports = {
	data: new SlashCommandBuilder()
		.setName('setnick')
		.setDescription('Set a user\'s nickname.')
		.addUserOption(o => 
			o.setName('user')
			 .setDescription('The user to set the nickname for.')
			 .setRequired(true)
		)
		.addStringOption(o =>
			o.setName('nickname')
			 .setDescription('The nickname to set.')
			 .setRequired(true)
		),
	async execute(interaction) {
		try {
			// Defer the reply, with ephemeral set to true
			await interaction.deferReply({ ephemeral: true });
			// Get the user and nickname from the interaction
			const user = interaction.options.getMember('user');
			const nickname = interaction.options.getString('nickname');

			// Set the nickname
			await fn.setNick(user, nickname);

			// Reply to the interaction
			await interaction.editReply(`Successfully set ${user}'s nickname to ${nickname}`);
		} catch (error) {
			console.error(error);
			if (error.code === 50013) {
				return await interaction.editReply('I do not have permission to set the nickname of that user!');
			}
			if (error.code === 50035) {
				return await interaction.editReply('The nickname is too long!');
			}
			await interaction.editReply('There was an error while executing this command!');
		}
	},
};