To read data from appsettings.json I useConfigurationBuilder, ConfigurationBinder. ConfigurationBuilder,ConfigurationBinder allow you to read data from appsettings.json. Questions: - How to write data to appsettings.json in a console application? Can I write data to appsettings.json usingConfigurationBuilder, ConfigurationBinder? Or do I need to use JsonConvert.DeserializeObject <Settings> (fileTe