Setting up Slash Commands

In order for slash commands to run when placed inside their respective sub-folders of the command directory, you need to set the object properties for each command based off the non-slash commands and also include slash method and properties shown below.

Usage

Here is a sample slash command example created using the previous ping.js command we created in the last doc page:

Slash Commands

const { SlashCommandBuilder } = require("discord.js");

// I recommend you define the command name and description here to prevent 
// retyping them if you decide to have prefix and slash command to call the cmd
const name = "ping";
const description = "Ping Pong Command";
module.exports = {
	name,
	description,
	aliases: ['p'],
	guildOnly: true,
	permissions: 0,
	minArgs: 0, 
	usage: '',
	// defines as slash command using Discord.js SlashCommandBuilder
	data: new SlashCommandBuilder() 
	    .setName(name)
	    .setDescription(description),
	execute(message, args, client) {
		return message.channel.send({
			content: 'Pong'
		});
	},
	async interactionReply(interaction) { // define what the slash command does
		await interaction.reply({
			content: 'Pong!'
		});
	}
};

Slash Commands with options

const { SlashCommandBuilder } = require("discord.js");

// I recommend you define the command name and description here to prevent 
// retyping them if you decide to have prefix and slash command to call the cmd
const name = "ping";
const description = "Ping Pong Command";

module.exports = {
	name,
	description,
	aliases: ['p'],
	guildOnly: true,
	permissions: 0,
	minArgs: 0, 
	usage: '',
	data: new SlashCommandBuilder()
	    .setName(name)
	    .setDescription(description)
	    .addUserOption((option) =>
	      option
	        .setName("someone")
	        .setDescription("Mention Someone")
	        .setRequired(true)
	    ),
	execute(message, args, client) {
		return message.channel.send('Pong.');
	},
	
	async interactionReply(interaction) {
		const { options } = interaction;
  		const user = await options.getUser('someone');
		await interaction.reply({
			content: `Hello ${user.username}!`
		});
	}
};

Properties

data

new SlashCommandBuilder class object, You can read more about it in the Discord.js Documentation about SlashCommandBuilder and the Discord Developer Documentation.

Type: SlashCommandBuilder

Required: true

interactionReply(interaction, client, level)

This is the interaction async Function method used to execute slash command.

You are required by Discord to return await interaction.reply({...}) in order to display result of the slash command.

Property	Type	Required	Description
interaction	Interaction Object	true	Represent an Discord Interaction
client	Client Object	false	This is the discord client object.
level	number	false	Permission level of user

returns: await interaction.reply(...);

interaction.reply takes in the same argument as message.reply