feature switch

appsettings.json

{
  //other configs 
  ,
  "FeatureManagement": {
    "FeatureName": true
  }
}

feature_switch_cheatsheet.txt

NET Core 3.1 has build-in feature switch mechanism:
Must have in the future :wink:

2 Nuget packages has to be installed:
https://www.nuget.org/packages/Microsoft.FeatureManagement/
https://www.nuget.org/packages/Microsoft.FeatureManagement.AspNetCore/

Quick demo:
https://youtu.be/6EebLChouDE

gistfile1.txt

if (await _featureManager.IsEnabledAsync(Constants.FeatureManagement.FeatureName)))
{
    // do something 
}

template.cshtml

@using Microsoft.FeatureManagement
@inject IFeatureManager FeatureManager
@addTagHelper *, Microsoft.FeatureManagement.AspNetCore


<feature name="FeatureName">
</feature>