Episode 3 - Event Handler

bot.js

@@ -1,7 +1,5 @@
 require("dotenv").config();
 const fs = require("fs");
-const { REST } = require("@discordjs/rest");
-const { Routes } = require("discord-api-types/v9");
 const { Client, Intents, Collection } = require("discord.js");
 
 const client = new Client({
@@ -23,51 +21,18 @@ for (const file of commandFiles) {
 	client.commands.set(command.data.name, command);
 }
 
-client.once("ready", () => {
-	console.log("Ghost is online.");
-
-	const CLIENT_ID = client.user.id;
-
-	const rest = new REST({
-		version: "9"
-	}).setToken(process.env.TOKEN);
-
-	(async () => {
-		try {
-			if (process.env.ENV === "production") {
-				await rest.put(Routes.applicationCommands(CLIENT_ID), {
-					body: commands
-				});
-				console.log("Successfully registered commands globally.");
-			} else {
-				await rest.put(Routes.applicationGuildCommands(CLIENT_ID, process.env.GUILD_ID), {
-					body: commands
-				});
-				console.log("Successfully registered commands locally.");
-			}
-		} catch (err) {
-			if (err) console.error(err);
-		}
-	})();
-});
-
-client.on("interactionCreate", async interaction => {
-	if (!interaction.isCommand()) return;
-
-	const command = client.commands.get(interaction.commandName);
-
-	if (!command) return;
-
-	try {
-		await command.execute(interaction);
-	} catch(err) {
-		if (err) console.error(err);
-
-		await interaction.reply({
-			content: "An error occurred while executing that command.",
-			ephemeral: true,
-		});
+const eventFiles = fs
+	.readdirSync("./events")
+	.filter(file => file.endsWith(".js"));
+
+for (const file of eventFiles) {
+	const event = require(`./events/${file}`);
+
+	if (event.once) {
+		client.once(event.name, (...args) => event.execute(...args, commands));
+	} else {
+		client.on(event.name, (...args) => event.execute(...args, commands));
 	}
-});
+}
 
 client.login(process.env.TOKEN);

events/interactionCreate.js

@@ -0,0 +1,22 @@
+module.exports = {
+	name: "interactionCreate",
+	once: true,
+	async execute(interaction) {
+		if (!interaction.isCommand()) return;
+
+		const command = interaction.client.commands.get(interaction.commandName);
+
+		if (!command) return;
+
+		try {
+			await command.execute(interaction);
+		} catch (err) {
+			if (err) console.error(err);
+
+			await interaction.reply({
+				content: "An error occurred while executing that command.",
+				ephemeral: true,
+			});
+		}
+	}
+}

events/ready.js

@@ -0,0 +1,38 @@
+const { REST } = require("@discordjs/rest");
+const { Routes } = require("discord-api-types/v9");
+require("dotenv").config();
+
+module.exports = {
+	name: "ready",
+	once: true,
+	execute(client, commands) {
+		console.log("Ghost is online.");
+
+		const CLIENT_ID = client.user.id;
+
+		const rest = new REST({
+			version: "9",
+		}).setToken(process.env.TOKEN);
+
+		(async () => {
+			try {
+				if (process.env.ENV === "production") {
+					await rest.put(Routes.applicationCommands(CLIENT_ID), {
+						body: commands,
+					});
+					console.log("Successfully registered commands globally.");
+				} else {
+					await rest.put(
+						Routes.applicationGuildCommands(CLIENT_ID, process.env.GUILD_ID),
+						{
+							body: commands,
+						}
+					);
+					console.log("Successfully registered commands locally.");
+				}
+			} catch (err) {
+				if (err) console.error(err);
+			}
+		})();
+	},
+};