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How to use app configuration dynamic configuration in.net?


Asked by Bria Stark on Dec 01, 2021 FAQ



It can handle changes dynamically without causing an application to restart. ASP.NET Core supports the binding of configuration settings to strongly typed .NET classes. It injects them into your code by using IOptionsSnapshot<T>, which automatically reloads the application's configuration when the underlying data changes.
Additionally,
You can use Configuration API with any .NET Core app, not only with ASP.NET Core app. Look into sample provided in the link, that shows how to read configs in the console app. In most cases, the JSON source (read as .json file) is the most suitable config source. Note: don't be confused when someone says that config file should be appsettings.json.
In fact, Simply, App.configis an XMLbased file format that holds the Application Level Configurations. Example: <?xml version="1.0"?> <configuration> <appSettings> <add key="key" value="test" /> </appSettings> </configuration> You can access the configurations by using ConfigurationManageras shown in the piece of code snippet below:
Just so,
For information on using configuration in console apps, see .NET Configuration. ASP.NET Core web apps created with dotnet new or Visual Studio generate the following code: CreateDefaultBuilder provides default configuration for the app in the following order: ChainedConfigurationProvider : Adds an existing IConfiguration as a source.
Also,
It can handle changes dynamically without causing an application to restart. ASP.NET Core supports the binding of configuration settings to strongly typed.NET classes. It injects them into your code by using IOptionsSnapshot<T>, which automatically reloads the application's configuration when the underlying data changes.