I’m working on a little social media web app and it has been so incredibly simple to build the API and a background worker process with Effect. I get logging, telemetry, error handling, concurrency, API doc generation, and more for free!

I think this library gets somewhat maligned for being complex, which I don’t think is fair for how much it offers given how much more complex a an equivalent solution would be without Effect.

With v4, I also don’t feel like I am even having to wrestle with TypeScript’s type system at all. I define some basic interfaces for my services and schemas for my data models and everything is just inferred through usage for the most part. It honestly starts to feel like I’m writing JavaScript for the most part.

This library gets lots of comparisons to functional programming languages/libraries, which is fair, but I think someone working in .NET/C# would be feel right at home.