update MSI tutorial

Author: cephalin

articles/app-service/app-service-web-tutorial-connect-msi.md

@@ -4,7 +4,7 @@ description: Learn how to make database connectivity more secure by using a mana
 
 ms.devlang: dotnet
 ms.topic: tutorial
-ms.date: 11/18/2019
+ms.date: 04/27/2020
 ms.custom: mvc, cli-validate
 ---
 # Tutorial: Secure Azure SQL Database connection from App Service using a managed identity
@@ -19,8 +19,8 @@ When you're finished, your sample app will connect to SQL Database securely with
 > [!NOTE]
 > The steps covered in this tutorial support the following versions:
 > 
-> - .NET Framework 4.7.2
-> - .NET Core 2.2
+> - .NET Framework 4.7.2 and above
+> - .NET Core 2.2 and above
 >
 
 What you will learn:
@@ -99,7 +99,7 @@ The steps you follow for your project depends on whether it's an ASP.NET project
 In Visual Studio, open the Package Manager Console and add the NuGet package [Microsoft.Azure.Services.AppAuthentication](https://www.nuget.org/packages/Microsoft.Azure.Services.AppAuthentication):
 
 ```powershell
-Install-Package Microsoft.Azure.Services.AppAuthentication -Version 1.3.1
+Install-Package Microsoft.Azure.Services.AppAuthentication -Version 1.4.0
 ```
 
 In *Web.config*, working from the top of the file and make the following changes:
@@ -134,7 +134,7 @@ Type `Ctrl+F5` to run the app again. The same CRUD app in your browser is now co
 In Visual Studio, open the Package Manager Console and add the NuGet package [Microsoft.Azure.Services.AppAuthentication](https://www.nuget.org/packages/Microsoft.Azure.Services.AppAuthentication):
 
 ```powershell
-Install-Package Microsoft.Azure.Services.AppAuthentication -Version 1.3.1
+Install-Package Microsoft.Azure.Services.AppAuthentication -Version 1.4.0
 ```
 
 In the [ASP.NET Core and SQL Database tutorial](app-service-web-tutorial-dotnetcore-sqldb.md), the `MyDbConnection` connection string isn't used at all because the local development environment uses a Sqlite database file, and the Azure production environment uses a connection string from App Service. With Active Directory authentication, you want both environments to use the same connection string. In *appsettings.json*, replace the value of the `MyDbConnection` connection string with:
@@ -143,33 +143,10 @@ In the [ASP.NET Core and SQL Database tutorial](app-service-web-tutorial-dotnetc
 "Server=tcp:<server-name>.database.windows.net,1433;Database=<database-name>;"
 ```
 
-In *Startup.cs*, remove the code section that you added before:
-
-```csharp
-// Use SQL Database if in Azure, otherwise, use SQLite
-if (Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT") == "Production")
-    services.AddDbContext<MyDatabaseContext>(options =>
-            options.UseSqlServer(Configuration.GetConnectionString("MyDbConnection")));
-else
-    services.AddDbContext<MyDatabaseContext>(options =>
-            options.UseSqlite("Data Source=localdatabase.db"));
-
-// Automatically perform database migration
-services.BuildServiceProvider().GetService<MyDatabaseContext>().Database.Migrate();
-```
-
-And replace it with the following code:
-
-```csharp
-services.AddDbContext<MyDatabaseContext>(options => {
-    options.UseSqlServer(Configuration.GetConnectionString("MyDbConnection"));
-});
-```
-
 Next, you supply the Entity Framework database context with the access token for the SQL Database. In *Data\MyDatabaseContext.cs*, add the following code inside the curly braces of the empty `MyDatabaseContext (DbContextOptions<MyDatabaseContext> options)` constructor:
 
 ```csharp
-var conn = (System.Data.SqlClient.SqlConnection)Database.GetDbConnection();
+var conn = (Microsoft.Data.SqlClient.SqlConnection)Database.GetDbConnection();
 conn.AccessToken = (new Microsoft.Azure.Services.AppAuthentication.AzureServiceTokenProvider()).GetAccessTokenAsync("https://database.windows.net/").Result;
 ```
 
@@ -228,7 +205,7 @@ In the Cloud Shell, sign in to SQL Database by using the SQLCMD command. Replace
 sqlcmd -S <server-name>.database.windows.net -d <db-name> -U <aad-user-name> -P "<aad-password>" -G -l 30
 ```
 
-In the SQL prompt for the database you want, run the following commands to add the Azure AD group and grant the permissions your app needs. For example, 
+In the SQL prompt for the database you want, run the following commands to grant the permissions your app needs. For example, 
 
 ```sql
 CREATE USER [<identity-name>] FROM EXTERNAL PROVIDER;