Haha-Yes/commands/general/tts.js

const { Command } = require('discord-akairo');
const textToSpeech = require('@google-cloud/text-to-speech');
const gclient = new textToSpeech.TextToSpeechClient();
const fs = require('fs');

class TtsCommand extends Command {
    constructor() {
        super('tts', {
            aliases: ['tts'],
            category: 'general',
            split: 'none',
            args: [
                {
                    id: 'text',
                    type: 'string'
                }
            ],
            description: {
                content: 'Send a mp3 of what you wrote in tts',
                usage: '[text]',
                examples: ['hello']
            }
        });
    }

    async exec(message, args) {
        let text = args.text;

        // Construct the request
        const request = {
            input: { text: text },
            // Select the language and SSML Voice Gender (optional)
            voice: { languageCode: 'en-US', ssmlGender: 'NEUTRAL' },
            // Select the type of audio encoding
            audioConfig: { audioEncoding: 'MP3' },
        };

        // Performs the Text-to-Speech request
        gclient.synthesizeSpeech(request, (err, response) => {
            if (err) {
                fs.close();
                console.error('ERROR:', err);
                return;
            }

            // Write the binary audio content to a local file
            await fs.writeFile('tts.mp3', response.audioContent, 'binary', err => {
                if (err) {
                    console.error('ERROR:', err);
                    message.channel.send('An error has occured, the message is probably too long');
                    fs.close();
                    return;
                }
                console.log('Audio content written to file: tts.mp3');
                message.channel.send({ files: ['./tts.mp3'] })
            });
            fs.close();
        });
    }
}
module.exports = TtsCommand;