Deserialising .NET Core Configuration Settings

appsettings.json

{
  "authentication": {
    "azureAd": {
      "aadInstance": "https://login.microsoftonline.com/",
      "domain": "[TENANT_NAME].onmicrosoft.com",
      "tenantId": "[TENANT_ID]",
      "clientId": "[CLIENT_ID]",
      "clientSecret": "[CLIENT_SECRET]",
      "callbackPath": "[CALLBACK_URL]"
    }
  },

  "connectionStrings": [
    {
      "name": "MyDbContext",
      "connectionString": "[CONNECTION_STRING]"
    }
  ],

  "logging": {
    "includeScopes": false,
    "logLevel": {
      "default": "Debug",
      "system": "Information",
      "microsoft": "Information"
    }
  }
}