Using Microsoft.Identity.Web templates to connect to Azure AD B2C via VS 2019

This complements a previous article that used the command line only.

This does the same thing but using VS 2019 Version 16.8.1.

I also have .NET 5.0 installed as well as the 1.3.0 version of Microsoft.Identity.Web.

Create a B2C app. registration with:

• Accounts in any identity provider or organizational directory (for authenticating users with user flows)
• Allow access and ID tokens
• A redirect URI of “https://localhost:12345/signin-oidc”
• Note the client and tenant id

You also need a V2 SUSI policy.

Open VS 2019.

Open View / Terminal.

Navigate to a new empty folder via “cd path to folder”.

Run:

dotnet new mvc2
 --framework net5.0 
--auth IndividualB2C 
--domain tenant.onmicrosoft.com 
--tenant-id 65f7...2316 
--client-id a2dc...b9c9  
--susi-policy-id B2C_1_SUSI_V2

Where the id’s are as above, the tenant name is the name of your B2C tenant and the policy name is the one you created.

This will create the project files.

Now use VS to open the .csproj file in that folder via “File / Open Project/Solution”.

Build the project in VS (F6).

Open Properties / launchSettings.json

Note the SSL port e.g.:

“sslPort”: 44374

Change the redirect URI in the app. registration to e.g.

“https://localhost:44374/signin-oidc”

Run the VS project (F5).

You should then see the B2C login screen and be able to authenticate with a local account.

All good!