Quick .NET API Validation Demo with DataAnnotations + REST Client
Автор: BeginnerDevJourney
Загружено: 2026-02-23
Просмотров: 6
Описание:
Learn how to add simple server-side validation in a .NET Web API using DataAnnotations.
In this quick demo, I show the input model, the controller logic, and how the API responds with validation errors when the request is invalid.
To test the API directly from Visual Studio Code, I use the REST Client extension.
You can install it here:
https://marketplace.visualstudio.com/...
This extension lets you create .http files and send requests without leaving the editor — perfect for quick API testing.
If you want to explore all available validation attributes in .NET, check the official documentation:
https://learn.microsoft.com/en-us/dot... (learn.microsoft.com in Bing)
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