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• The error System.UriFormatException: Invalid URI: The URI is empty. occurs when ABP Studio attempts to open a file dialog but receives an empty or invalid path/URI. This is not directly related to abp-dynamic-form or dynamic forms in ABP, but rather to the file picker functionality in ABP Studio.

How to resolve:

1. Ensure you are using the latest version of ABP Studio, as file dialog issues may be fixed in recent releases.
2. When clicking "Open Solution," make sure the dialog is not being blocked by your OS or any security software.
3. If the dialog does not appear or fails immediately, try restarting ABP Studio or your computer.
4. If the problem persists, check for any custom configuration or environment variables that might affect file dialogs.

For more on dynamic forms in ABP, see the official documentation:

• https://abp.io/docs/latest/framework/ui/mvc-razor-pages/tag-helpers/dynamic-forms

If the issue is specific to ABP Studio's file dialog, it may be a bug. In that case, report it on the ABP GitHub issues page with your OS details and ABP Studio version.

Sources:

• https://abp.io/docs/latest/framework/ui/mvc-razor-pages/tag-helpers/dynamic-forms

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To make external claims (such as Azure AD roles) available in the Identity.Application scheme within ABP, and to ensure these claims are available for authorization and token generation, you should use a combination of claim mapping and ABP's extensibility points. Here is the recommended, idiomatic approach for ABP:

1. Map External Claims to ABP User Claims on Login

   • When a user logs in via an external provider (e.g., Azure AD), the claims from the external identity (like roles) are available in the external principal.
   • You need to map these claims to the ABP user or session so they are available in the Identity.Application context.

2. Use ClaimsPrincipalFactory for Custom Mapping

   • ABP uses a ClaimsPrincipalFactory to build the application user principal. You can override or extend this to include external claims.
   • This is the most idiomatic and maintainable way to "forward" claims from external identities into the ABP user principal.

   Example:

public class MyUserClaimsPrincipalFactory : AbpUserClaimsPrincipalFactory
   {
       public MyUserClaimsPrincipalFactory(
           UserManager<IdentityUser> userManager,
           IOptions<IdentityOptions> optionsAccessor)
           : base(userManager, optionsAccessor)
       {
       }

       protected override async Task<ClaimsIdentity> GenerateClaimsAsync(IdentityUser user)
       {
           var identity = await base.GenerateClaimsAsync(user);

           // Example: Add external roles from a custom user property or external login info
           // You may need to persist external roles in user claims or a custom property on login
           var externalRoles = ... // Retrieve roles from external login/session
           foreach (var role in externalRoles)
           {
               identity.AddClaim(new Claim(ClaimTypes.Role, role));
           }

           return identity;
       }
   }

Register your factory in DI to replace the default.

3. Persist External Claims if Needed

   • If you want the roles to persist across sessions, you should store them as user claims in the database during the external login process (e.g., in the OnExternalLoginCallbackAsync of the login page).
   • This way, the ClaimsPrincipalFactory can always read them from the user store.

4. OpenIddict Token Claims

   • By default, ABP's OpenIddict integration will include role claims in the access_token and id_token if they are present on the user principal.
   • If you need to customize which claims go into tokens, implement IAbpOpenIddictClaimsPrincipalHandler or IAbpOpenIddictClaimDestinationsProvider to control claim destinations.

5. Dynamic Claims (Optional)

   • If you want to add claims dynamically at runtime (e.g., from an external API), you can use ABP's Dynamic Claims system.
   • See: Dynamic Claims Contributor Options

6. Do Not Rely on LoginModel for Claims Forwarding

   • Hooking into the LoginModel is not recommended for production logic. Use the extensibility points above for maintainability and clarity.

Summary of Steps:

• Map external claims to user claims during external login.
• Use a custom ClaimsPrincipalFactory to include these claims in the application principal.
• Optionally, persist claims for future sessions.
• Use OpenIddict claim handlers if you need to control token contents.

Sources:

• ABP OpenIddict: Updating Claims In Access_token and Id_token
• ABP Claims Principal Factory
• ABP Dynamic Claims

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• In ABP, each module is designed to be self-contained, including its own dependencies, initialization, and UI components. The recommended approach is to encapsulate all module-specific logic, services, and UI in the module itself, so it can be added or removed with minimal changes to the main application—typically just a project/package reference and a DependsOn entry.

• For UI testing, ABP does not provide a built-in UI test project template for modules. However, you can create a minimal Blazor WebApp project as a reusable template for your team. This project can reference the module and serve as a test harness for UI components.

• To include third-party libraries (like Blazorise) in a module:

  1. Add the required NuGet packages to the module's Blazor project.
  2. If the library requires static assets (JS/CSS), use ABP's bundling system. Create a BundleContributor in your module to add the necessary files to the bundle. This ensures assets are included when the module is referenced by the main app or a test app.
  3. For NPM packages, if you need to ship them with the module, include them in the module's wwwroot/libs folder and reference them via the bundling system. The main app or test app will then serve these assets.

• To avoid multiple initializations of third-party libraries:

  • Place the initialization code (e.g., service registrations, configuration) inside the module's AbpModule.ConfigureServices method.
  • ABP's module system ensures that each module is initialized only once, even if referenced by multiple projects, by building a dependency graph and handling initialization order.
  • For third-party Blazor libraries that require a single initialization (e.g., Blazorise), encapsulate their initialization in a dedicated module (e.g., MyModule.BlazoriseModule) and ensure only this module calls the initialization code. Other modules should depend on this module if they need the library, but not re-initialize it.

• For the CheckLibs flag and the libs folder: If your minimal Blazor WebApp test project doesn't need any libraries initially, you can keep the folder empty and add assets as needed. The CheckLibs flag is a safeguard but can be left enabled; just document for your team that they should add required assets when needed.

• In summary, each module should:

  • Register its own services and dependencies in its AbpModule.
  • Use BundleContributors to add required JS/CSS assets.
  • Encapsulate third-party library initialization in a dedicated module if needed.
  • Use a minimal Blazor WebApp as a test harness, referencing the module for UI testing.

Sources:

• ABP Module System
• Blazor UI Modularity
• Adding a Module to an ABP Project

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To use CloudFront with S3 in ABP's AWS Blob Provider, you need to keep storing files in S3 (using the existing AwsBlobProvider), but serve/download them via CloudFront URLs instead of direct S3 links. The ABP Blob Storing system itself does not natively generate CloudFront URLs; it only manages storage and retrieval from S3.

How to achieve this:

1. Continue using AwsBlobProvider for uploads:
   Your current upload logic remains unchanged. Files are stored in your private S3 bucket.

2. Configure CloudFront to serve your S3 bucket:

   • Set up a CloudFront distribution with your S3 bucket as the origin.
   • Restrict S3 bucket access to CloudFront only (using Origin Access Identity or Origin Access Control).
   • Optionally, enable signed URLs/cookies for secure access.

3. Generate CloudFront URLs in your application:

   • When you need to provide a download or access link, generate a CloudFront URL instead of an S3 URL.
   • If you use signed URLs, use AWS SDK or a library to generate signed CloudFront URLs for your objects.

4. Override or extend your application service:

   • In your ABP application service, after uploading or when retrieving a file, construct the CloudFront URL using the object key (the same key used in S3).
   • Example:

public string GetCloudFrontUrl(string objectKey)
     {
         var cloudFrontDomain = "https://your-distribution.cloudfront.net";
         return $"{cloudFrontDomain}/{objectKey}";
     }

• For signed URLs, use AWS SDK's Amazon.CloudFront.CloudFrontUrlSigner.

Summary:

• Uploads remain via AwsBlobProvider.
• Downloads/links are generated as CloudFront URLs in your application logic.
• ABP does not automatically generate CloudFront URLs; you must handle this in your service layer.

Sources:

• ABP AWS Blob Storing Provider
• AWS documentation for CloudFront and signed URLs (not directly in ABP docs, but required for implementation)

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• In an ABP microservice solution, to use a separate database per tenant, you must ensure that:

  1. The tenant's connection string is set correctly in the SaaS management UI or via API.
  2. The database for the tenant is created and all required tables (e.g., AbpUsers) are present.

• The error "can't find demo.abpusers table" indicates that the tenant's database does not have the necessary tables. This usually happens if database migrations have not been applied to the new tenant's database.

Solution:

1. Set the Tenant Connection String:

   • In the SaaS management UI, set the "Default" connection string for the tenant to point to a new, empty database.

2. Apply Migrations to the Tenant Database:

   • ABP does not automatically run migrations for new tenant databases in microservice solutions. You must run the DbMigrator application to apply all module and application migrations to the tenant's database.
   • Run the DbMigrator after setting the connection string. This will create all required tables (including AbpUsers) in the tenant's database.

   Example command (from the root of your solution):

dotnet run --project YourProject.DbMigrator

• Ensure your connection strings and environment variables are set so the migrator can access all tenant databases.

3. Verify Database:

   • After running the migrator, check the tenant's database to confirm that all tables are created.

4. Retry Login:

   • Now, login as the tenant should work, as the required tables exist.

Note: In microservice solutions, each service may have its own DbMigrator. You must run the migrator for each service that uses a database.

References:

• ABP Multi-Tenancy documentation
• Multi-Tenancy with Separate Databases in ABP
• Microservice Solution Database Configurations

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• In ABP microservice solutions, ABP Suite does not currently support automatic Angular UI CRUD page generation as it does in layered monolithic solutions. This is a known limitation. When you use ABP Suite in a microservice solution, the generated CRUD UI pages may not appear in the Angular project, while in layered solutions, this works as expected.

• This issue has been reported by other users and is on the ABP team's list to address. As a workaround, you can manually implement the Angular UI for your microservice entities or consider developing the CRUD pages in a layered solution and then adapting the code for your microservice architecture.

• For more details and community discussion, see:

  • ABP Suite CRUD Page Generation Issue in Microservice Solutions
  • ABP Suite CRUD Page Generation Bug
  • Angular UI Administration Menus Not Showing

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To prevent the two-factor authentication (2FA) settings menu from being displayed to users, you need to ensure that the "Two factor enabled" option is unchecked at the host or tenant level. If this option is not enabled, users will not see or be able to change their 2FA settings in the menu.

Steps:

1. Go to the Administration > Settings > Identity Management section as the host or tenant admin.
2. Locate the "Two factor enabled" setting.
3. Make sure this option is unchecked (disabled).
4. Save your changes.

After disabling this setting, the 2FA option will no longer appear in the user menu.

If the menu still appears, ensure that your application is not caching settings and that you have restarted the application if necessary.

Sources:

• ABP Two-Factor Authentication (User Side)

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The Payment Module (Pro) requires an ABP Team or higher license. It is not available for purchase separately with a single developer license. To use the Payment Module, you need to upgrade to at least the Team license.

Sources:

• https://abp.io/docs/latest/modules/payment

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The error occurs because your Blazor web app (served over HTTPS) is attempting to request an insecure (HTTP) URL for the authorization endpoint: http://auth.staging.mydomain.io/connect/authorize. Modern browsers block this "mixed content" for security reasons.

The variable responsible for generating the authorization endpoint URL is typically the Authority setting in your configuration files (such as appsettings.json or environment variables) for the Blazor app and any microservices that interact with the AuthServer. If this is set to use http:// instead of https://, the generated URLs will be insecure.

To resolve this:

1. Check your Blazor app's appsettings.json (or relevant environment config) and ensure the AuthServer:Authority is set to https://auth.staging.mydomain.io.

"AuthServer": {
     "Authority": "https://auth.staging.mydomain.io",
     ...
   }

2. Also verify the RedirectUri, PostLogoutRedirectUri, and any other URLs related to authentication are using https://.

3. If you are using Kubernetes/Helm, ensure that your environment variables and Helm values files do not override the authority with an http:// value.

4. If you have a gateway or reverse proxy, make sure it is configured to forward the original scheme (X-Forwarded-Proto header) so the app can detect HTTPS correctly.

After making these changes, the authorization endpoint will be generated with https://, and the browser will no longer block the request.

No verified source available for this specific query. This approach aligns with common ABP conventions and standard ASP.NET Core authentication configuration.

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To change the default admin username for a new tenant in ABP Framework (so it is not always "admin"), you need to use the new feature introduced in ABP 8.3. This allows you to set the admin username via the DataSeeder by passing the "AdminUserName" property when seeding the tenant.

Your current approach of adding "AdminName" to the event properties will not work, because the ABP seeding logic specifically looks for the "AdminUserName" property.

Here’s how you should do it:

1. When seeding the tenant (typically in your migration or seeding logic), pass the "AdminUserName" property:

await _dataSeeder.SeedAsync(
    new DataSeedContext(tenant.Id)
        .WithProperty(IdentityDataSeedContributor.AdminEmailPropertyName, input.AdminEmailAddress)
        .WithProperty(IdentityDataSeedContributor.AdminPasswordPropertyName, input.AdminPassword)
        .WithProperty(IdentityDataSeedContributor.AdminUserNamePropertyName, adminName) // <-- Set your custom admin username here
);

2. Make sure you are using ABP Framework 8.3 or later, as this feature is only available from that version.

3. Do not use "AdminName" or "AdminUserName" in the event bus properties unless your own custom event handler is reading it. The official ABP seeding logic only reads from the DataSeedContext properties.

For more details, see the official migration guide:

• https://abp.io/docs/latest/release-info/migration-guides/abp-8-3
• https://abp.io/support/questions/8116

This will ensure the admin user for each tenant is created with the username you specify, not the default "admin".

Sources:

• https://abp.io/docs/latest/release-info/migration-guides/abp-8-3
• https://abp.io/support/questions/8116

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