How to access "ID token"/"claims" in Web Controllers? about active-directory-b2c-dotnet-webapp-and-webapi

[spalmcc]

Finally someone responded to me over another forum:-

var claims = (HttpContext.User as ClaimsPrincipal).Claims;
var enume = claims.GetEnumerator();
while (enume.MoveNext())
{
var data = enume.Current;
// var claimType = data.Type;
switch (data.Type)
{
case "name":
loggedInUserName = data.Value.ToString();
break;
case "extension_CustomRole":
roles = data.Value.ToString().Split(',');
break;

            }
        }

This is how, it can be done.
Thanks to Alfredo Revilla (MSFT)

[spalmcc]

Hello jmprieur, people who are working to implement B2C Auth are dependent on the documention and support from MS teams. When we are stuck and we dont hear from MS team, we dont know what do you. Someone replied to me from another forum. I posted here so that others can get help.

But I am happy now to see respone coming from MS people.

We are facing another issue #149
Could someone look into that and share some pointers? (FYI-Someone is responding on this now so please ignore this request.. )

You would know what we are getting null in account.

best regards,
S

[spalmcc]

Sad to experince MS team do not care...

[jmprieur]

@spalmcc sorry for the delay and if you had the impression we don't care. We do care (but lost people recently ...)
From the controller, you can user HttpContext.User.GetDisplayName() if you use Microsoft.Identity.Web which adds extension methods to ClaimsPrincipal (which we recommend you do as you are on ASP.NET Core).

See https://github.com/Azure-Samples/active-directory-aspnetcore-webapp-openidconnect-v2/blob/master/1-WebApp-OIDC/1-5-B2C/README.md

[bgavrilMS]

To sum up - to access the id token claims, you can look into the ClaimsPrincipal object https://learn.microsoft.com/en-us/dotnet/api/system.security.claims.claimsprincipal?view=net-7.0

This is available as (HttpContext.User as ClaimsPrincipal). If it is not present, it means the user is not authenticated and needs to be challenged.