Hello,
I'm working with the ABP Framework using the Blazor UI and microservice template with PostgreSQL. After making some modifications to the default startup templates, I've encountered an issue with user claims access.
Problem Description:
I have successfully inserted custom claims into the AbpUserClaims table. These claims are accessible and readable from the API projects. However, the Blazor UI project cannot access these database-stored claims. I have disabled the DynamicClaims feature in my project. Analysis: I suspect the Blazor UI project lacks direct access to the Identity database, which prevents it from retrieving the stored claims.
Current Workaround: I've created a dedicated API service method that returns the claims values to the UI project, which works but feels like a temporary solution.
Question: Is there a more integrated or "natural" approach within the ABP Framework to resolve this claims access issue between the Blazor UI and the Identity database?
Any guidance or suggestions would be greatly appreciated.
Best regards, Murat
6 Answer(s)
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To provide a more integrated solution for accessing user claims in the Blazor UI with ABP Framework, consider the following:
Claims Propagation in Blazor UI:
- In ABP, claims are typically loaded into the authentication token (JWT or cookie) at login. The Blazor UI (especially in microservice or separated architectures) does not directly access the Identity database; it relies on the claims present in the authentication context.
- If you add or modify claims in the database after the user has logged in, these changes will not be reflected in the Blazor UI until the user re-authenticates, unless you use the Dynamic Claims feature.
Dynamic Claims Feature:
- The Dynamic Claims feature in ABP allows claims to be dynamically refreshed on each request, ensuring the latest values are available without requiring re-login.
- If you have disabled Dynamic Claims, the Blazor UI will only see the claims present at the time of authentication.
Recommended Approach:
- The most "natural" and integrated way in ABP is to use the Dynamic Claims feature. This ensures that claims stored in the database are always up-to-date in the user's principal, both in API and UI projects.
- If you do not want to use Dynamic Claims, your current workaround (exposing claims via an API endpoint) is the standard approach, as the UI cannot directly access the Identity database.
Updating Claims in Tokens:
- If you are using OpenIddict, you can customize which claims are included in the access_token and id_token by overriding the claims principal factory or using the relevant OpenIddict events.
- See the official documentation for updating claims in tokens:
Summary:
- For seamless, up-to-date claim access in Blazor UI, enable and configure the Dynamic Claims feature.
- If you keep Dynamic Claims disabled, continue using your API-based approach, as this is the standard pattern in distributed/microservice ABP solutions.
Sources:
- ABP Dynamic Claims
- Updating claims in access_token and id_token (OpenIddict)
- Claims Principal Factory
This response was generated by AI. If it didn’t solve your problem, feel free to post a new answer — our support team will jump in to help you soon.
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hi
Are you using Blazor WASM or Blazor Server?
You can add a
MyClaimDestinationsHandlerin your AuthServer to set your new claimDestinationstoOpenIddictConstants.Destinations.AccessToken, OpenIddictConstants.Destinations.IdentityTokenhttps://abp.io/docs/latest/modules/openiddict#updating-claims-in-access_token-and-id_token
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Hi,
I am using Blazor Server.
I will try your recommendation.
Thanks
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ok. I think it will fix your problem.
Thanks.
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Thanks.
Your initial implementation for claim destinations works correctly.
This approach increases the token size. In Blazor UI applications, larger authentication cookies can lead to network-level issues due to maximum cookie size limitations. To address this, we've implemented a workaround using IdentitySessionManager to store the auth cookie content in the session instead.
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Great 👍
