Learn how to secure Blazor WebAssembly applications with Auth0. Read more Brought for you by @andrea.chiarelli [Securing Blazor WebAssembly Apps]

First thank you for the article. A couple questions: The issue you mentioned about Blazor’s inability to provide additional query arguments at login would seem to suggest it is not possible to specify a particular Auth0 connection at login. Is there some way you can see to work around this and log …

I’m sure Andrea will try to address that once he’s online. Thanks for all the input!

Hey @dane.vinson , The Authentication.razor component implements logout by disconnecting the client from Auth0. However, as highlighted in a note in the article, it seems that in some circumstances the HTTP request to the logout endpoint doesn’t happen. I think it is a Blazor issue because this be…

Hi @lprada , thanks for appreciating it :slight_smile: I will take into account your suggestion for a future blog post. Regarding an Auth0 SDK for Blazor, as far as I know, currently there is no plan for this.

In working through this article I’ve found that when I assign the RemoteAuthenticationOptions.ProviderOptions.ResponseType to “code” I get a 401 response with the message “There was an error trying to log you in: ‘’”. If I do not assign the ResponseType (defaults to token?) the login succeeds, howev…

Hey @dane.vinson , that behavior looks quite weird. Are you getting the same error even running the complete project attached to the article ?

When I created the Auth0 app I created it as a Regular Web Application instead of a Single Page Application. I updated that and got past the previous issues (though at this point I’m still getting a 401 when I call a method on the Web API).

I’ve downloaded the completed project, updated the “Authority” and “ApiIdentifier” appsettings in the API project with my Auth0 authority and API identifier then updated the “Authority” and “ClientId” appsettings in the client project with my Auth0 authority and my application’s ClientId. I can log …

I discovered that the Default Audience that I’d provided in my Domain Settings did not actually save. I was finally able to get it to save after three consecutive times entering and saving and now both your POC and mine are working.

Securing Blazor WebAssembly Apps

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konrad.sopala August 10, 2020, 2:10pm 13

Hey there @dane.vinson!

I’m sure Andrea will address that once he’s back from vacation.

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