Nicobot

Music bot that plays music from Nicovideo, written from the scratch, without using Discord.py.

What is this bot?

Just like its name, It plays songs from Nicovideo server. Streaming-related code is mostly from nico.py module from my previous bot, while Discord-side API wrapper was completely written from the scratch.

It currently uses urllib to communicate with their HTTP endpoints, websocket-client to communicate with Gateway. Since It doesn't use coroutine on purpose, It currently uses threading library to parallelly run websockets and heartbeats.

since websocket-client is written in pure Python and could cause a bottleneck in some cases, installing wsaccel package from pip is recommended.

Why though? wasn't Discord.py enough?

Well, I just made it because I can ¯\_(ツ)_/¯

I just wanted to understand its underlying protocols, as well as practice to write a big package.

Also, since Discord.py heavily depends on coroutine which coufuses the hell out of beginners and make them write a spaghetti, I thought we might need a corountine-less library. That's why I didn't use a famous websockets library, and went with websocket-client instead. They stated that its purpose is to provide a convenient asynchronous API, not synchronous one.

And... well, as of August 2021, Discord.py is no longer being maintained. so... yeah.

Using threading instead of multiprocessing?! Cast it into the fire, DESTROY IT!!

I'm well aware that threading in python has a disadvantage due to Global Interpreter Lock. but since there are bottlenecks in HTTP requests, I don't think bottlenecks caused by GIL will affect the performance largely. of course, I didn't do any tests yet. I'll do it later though, and if it appears to degrade performance, I will migrate to multiprocessing library.

Development Roadmap

Contributions?

Oh yes, I definitely need them! I'll happily accept any forms of contributions, just send me a PR! I'll review it right away.

Contact kokoseij@gmail.com If you need any questions. Thanks!