Here is the main workspace repo, and the CLI.
Here is the Discord Bot README, where info about using and running the bot can be found.
I had been playing Hearthstone almost every day for the better part of a decade, since the release of Journey of Un'Goro in 2017, and I participated in various communities for the game on Discord and Reddit. Almost all the tools in these communities that help players look up the cards are based on an unofficial third party API, even though Blizzard does have their own. So I always imagined that there should be one based on Blizzard's API.
So, looking for a project to learn Rust with, I decided to try and build the Hearthstone Bot I always wanted, that looks up the data directly from Blizzard. I mostly succeeded, as it only falls on third party API for some odd omissions in Blizzard's own (like some card thumbnails) and metagame data (which is not provided by Blizzard at all.)
During the development of this project, I learned a lot about Rust and its surrounding ecosystem: clap, serde, serenity, image, nom. I learned about HTTP and GET and POST. I learned about hosting my bot on shuttle.rs. I implemented font fallback to localize the app and deck images (not that anybody actually used the localization, but it is there.) For a brief while I had a straight-up type setter to set card text into images, though I eventually dropped that because the fonts took too much server space.
My favorite thing about the project, personally, is the deck images. I had so much fun with them. They look very nice in all cases with no human intervention whatsoever. The CLI app has tool to patch produce the images for some content creator's Twitter or something.
Unfortuantelym since shuttle.rs shut down their free offering on December 2025, the bot stopped running, as I am not really willing to pay (or receive money) for it. The bot was, at the end installed on 55 Discord servers. Chief among them was the Competitive Hearthstone Discord Server, where I hung out and gathered ideas on how to improve the bot;