Using only the discord.js and discord-opus dependencies, the bot code structure consists in one single Javascript index file, alongside an audio file and a Procfile for Heroku deployment. The code has one event, which prints something in the terminal when the bot is ready to use, and one command that follows this logic:

Whenever an user inside a voice channel that isn't a bot types '!rojao' or '!rojão' (in portuguese, rocket or firework), the bot triggers the 'join' command to join the voice channel. Then, the bot replies the message author with a text simulating the sound of the rocket (with a brazilian type of accent and some emojis), plays the audio file and, as the reproduction finishes, leaves the voice channel.

Rojão Bot

A simple bot that plays a brazilian-style rocket sound whenever is called by someone in a voice channel and then leaves.

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