CODEWITHSUNDEEP
azure-ad-b2cazure-ad-b2c-custom-policy
penguin178
penguin178

Reputation: 374

B2C - pass parameter in url from .net5 application

I am calling a b2c custom policy from my .net5 application. The code I'm using to redirect users from the application to the custom policy screen is:

var scheme = OpenIdConnectDefaults.AuthenticationScheme;
var properties = new AuthenticationProperties { RedirectUri = redirectUrl };
properties.Items["policy"] = "B2C_1A_xxxxxx;

return Challenge(properties, scheme);

I also want to pass a value across from my application to pre-populate an input on the B2C screen.

I am able to get a value from a url parameter by using OAUTH-KV:KeyValueKey in the custom policy. Such that when I add &KeyValueKey=KeyValueValue to the url manually, I am able to display KeyValueValue in the relevant input.

However, am unable to update the C# code I have in the application so that I can generate the url with the parameter value included in it.

Upvotes: 0

Views: 579

Answers (1)

Anton
Anton

Reputation: 131

You can add this query parameter to your Open Id Connect middleware in the startup. For example:

app.UseOpenIdConnectAuthentication(new OpenIdConnectOptions()
{
    //.. 
    Events = new OpenIdConnectEvents
    {
        OnRedirectToIdentityProvider = context =>
        {
            context.ProtocolMessage.SetParameter("KeyValueKey", "KeyValueValue");

            return Task.FromResult(0);
        }
    }
    //.. 
});

Upvotes: 3

Related Questions