{
  "Logging": {
    "LogLevel": {
      "Default": "Warning"
    }
  },
  "AllowedHosts": "*",
  "ConnectionStrings": {
    // Real values replaced with **** for security reasons, of course :-)
    "ConnectionStringSecurehSQL": "Data Source=****;Initial Catalog=****;user=****;password=****;Connect Timeout=100000"
  }
}

var conn = ConfigurationManager.ConnectionStrings["ConnectionStringSecurehSQL"];