Discord RPC-Game SDK library?

I'm building an Electron application for a game, which I want to integrate Discord with.

I would like to allow Discord users to display in their activity that they're playing this game.

As I know, it's possible by using the official Discord Game SDK, but since I'm not using neither C/C++ or C#, I would like to know if there's a current alternative for doing this with Node.js and Electron.
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