Playing Music

functions

module.exports = (bot) => {
    bot.playCommand = (message, args) => {
        const [song] = await bot.getSongs(args[0]);
        const voiceChannel = message.member.voiceChannelID
    
        if (!song) return message.channel.send("No songs found. try again!");
        if (!voiceChannel) return message.channel.send("You need to be in a voice channel to play music.")
    
        const player = await lavalink.join({
            guild: message.guild.id,
            channel: voiceChannel,
            host: lavalink.nodes.first().host
        }, { selfdeaf: true });
    
        if (!player) return message.channel.send("Could not join");
    
        player.play(song.track);
    
        player.once("error", console.error);
        player.once("end", async (data) => {
            if(data.reason === "REPLACED") return;
            
            message.channel.send("Song has ended...");
            await player.leave(message.guild.id);
        });
    
        return message.channel.send(`Now playing: **${song.info.title}** by *${song.info.author}*`);
    }
};

helper

const axios = require("axios");

module.exports = (bot) => {
    bot.getSongs = async (identifier) => {
        const node = lavalink.nodes.first();
    
        const {data} = await axios.get(`http://${node.host}:${node.port}/loadtracks`, {
            params: {
                identifier
            },
            headers: {
                Authorization: node.password
            }
        });
    
        return data.tracks;
    };

    bot.decodeTrack = async (track) => {
        const node = lavalink.nodes.first(); 
    
        const {data} = await axios.get(`http://${node.host}:${node.port}/decodetrack`, {
            params: {
                track
            },
            headers: {
                Authorization: node.password
            }
        });
    
        return data;
    };
};

play

module.exports = { 
    config: {
        name: "play",
        aliases: ["p"],
        description: "Play a song from youtube.",
        accessableby: "Member",
        category: "music",
        usage: "<input>"
    },
    run: (bot, message, args) => {
        return bot.playCommand(message, args);
    }
}