Validate API

This repository shows few implementations about how to validate your configurations in an ASP.NET Core 2.1 application.

Approaches

The below branches show the approaches taken to validate configurations.

• feature/Config_Validation_At_Startup

  • Validation will not occur in the start up. Meaning the validation will happen only when the first request to the NotificationsController receives.

• feature/Config_Validation_Using_IStartupFilter

  • Depends on System.ComponentModel.Annotations
  • IsValid method is no longer required in the IValidatableConfig interface since all the validations can be done through the data annotations or even implementing System.ComponentModel.**DataAnnotations.IValidatableObject interface.
  • The validations are moved into a separate class ValidateConfigurationFilter (a startup filter) which implements Microsoft.AspNetCore.Hosting.IStartupFilter interface.

• feature/Config_Validation_Nuget

  • A separate nuget package has been created to register the validatable configurations and which will register the ValidateConfigurationFilter just by calling two extension methods.

I have created a nuget package with these findings and you can use it following the instructions below.

• Install the nuget package.

• Register your configurations.