I always hated auto mapper libraries in C# as they are mostly reflection-based. They do runtime reflections to handle mapping, which have a significant performance overhead and potential runtime errors. I always try to avoid anything that involves reflection at all cost, even in a mapping case, I always preferred to write my own mappers.

However, today, I discovered a library called Mapperly 💎

Mapperly is a source generator based library for generating object mappings. A source generator in C# is a powerful compile-time code generation feature introduced in .NET 5 that allows you to generate additional source code during compilation. This means it generates type-safe and highly efficient mapping code at compile time. Since it avoids using reflection, there are no runtime complications.

I can't wait till I use it 🔥

Github Repo: https://github.com/riok/mapperly
Docs: https://mapperly.riok.app/docs/intro/

#csharp #tip #automapping #resource

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#csharp #tip #dotnet

just when we were already feeling proud of better-auth going viral and main stream, we get this news... what a pleasant surprise 🔥🔥