The Onion Architecture in 5 Minutes

Write Maintainable Software by preventing external dependencies from polluting your application core

Martin Cerruti
6 min readSep 6, 2022

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Photo by Wilhelm Gunkel on Unsplash

The Onion Architecture was first introduced by Jeffrey Palermo around 2008. At its very essence, the architecture focused on modeling business logic and entities at the application’s core, without any notion of the outside world.

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Martin Cerruti

Software Architect, Technology Writer, but most of all a programmer.