Acces Config Vars in Heroku with dotnet core to get the database URL
Heroku config vars are exposed to your application as environment variables:
Config vars are exposed to your app's code as environment variables. For example, in Node.js you can access your app's
DATABASE_URLconfig var withprocess.env.DATABASE_URL.
In C# you should be able to use System.Environment.GetEnvironmentVariable to read them, e.g.
Environment.GetEnvironmentVariable("DATABASE_URL")