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Discussion on: Error handling and validation architecture in .NET Core

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boriszn profile image
Boris Zaikin Author

Hey Marcell. Thank you for you comment. Exceptions allows you to gather all validation errors and intersect it in the meedle-ware. Moreover this concept used in many libraries, including .NET Core, Swagger etc. This is better than constantly repeat if-else (Crossing DRY principle) And why validation error can't be an exception ? And what is exception then ? ;)

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silverferrum profile image
Nik S

Hi!
Validation exceptions are what Microsoft does not recommend to do.
docs.microsoft.com/en-us/visualstu...

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boriszn profile image
Boris Zaikin Author

Hey,

Well, this document is outdated (since 11/04/2016) moreover it is for .NET Framework. In the Dot Net Core things work slightly different ;)
Here is some example: docs.microsoft.com/en-us/aspnet/co...

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silverferrum profile image
Nik S • Edited

Below on that page "Validation failure error response",
docs.microsoft.com/en-us/aspnet/co...

In addition "Model validation in ASP.NET Core MVC and Razor Pages",
docs.microsoft.com/en-us/aspnet/co...

"ASP.NET Core Performance Best Practices: Minimize exceptions"
docs.microsoft.com/ru-ru/aspnet/co...