Tobias Zimmergren • 11/1/2016

Using appsettings.json instead of web.config in .NET Core projects

This article provides a step-by-step tutorial on migrating from traditional web.config or app.config files to the modern JSON-based configuration system in .NET Core. It covers adding an appsettings.json file, configuring project.json to copy it to the output directory, and using ConfigurationBuilder with SetBasePath and AddJsonFile to read settings from anywhere in your application, including class libraries and console apps. The guide includes code examples and explains nested configuration values.

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#configuration #Appsettingsjson #Netcore