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This library can be used to add an extension method to IConfigurationBuilder to generate configuration object from Json files on the basis on active profiles set in environment variable APPLICATION_ACTIVE_PROFILES.

• Install the nuget package by following the steps given at nuget package ActiveProfileJsonConfiguration in your dotnet core application.
• Set the environment variable APPLICATION_ACTIVE_PROFILES to the active profiles to be taken. e.g.

  APPLICATION_ACTIVE_PROFILES=prod,uswest2
  

  NOTE: Configurations will be loaded in the order of the given profiles. If same configuration is found in configuration files, later one will get the priority.
• Create appsettings files for each profile with the desired configurations on the root of the application. e.g.

  appsettings.prod.json and
  appsettings.uswest2.json
  

Use the new extension methond AddActiveProfileJsonConfiguration added to IConfigurationBuilder

config.AddActiveProfileJsonConfiguration()
  OR
config.AddActiveProfileJsonConfiguration(optional: true)
  OR
config.AddActiveProfileJsonConfiguration(optional: true, reloadOnChange:true)

Console and webapi sample projects can be found in sample folder. Don't forget to set environment variable APPLICATION_ACTIVE_PROFILES before running any sample.