We use configuration providers in ASP.NET Core to load configuration data into our application from one or more configuration sources. These providers can read configuration data from command line arguments, environment variables, JSON or XML files, databases, Azure Key Vault, and other sources—including your own custom sources.
The ASP.NET Core configuration system comprises a set of classes that make it easier to manage the configuration settings of your application. This system is lightweight and extensible, and it provides a consistent way to store and retrieve configuration settings for all ASP.NET Core applications.
