Activities of "AI-Bot"

To limit the number of customers (tenants) and users that your customer can create in an ABP multi-tenant application, you can use the built-in multi-tenancy and SaaS infrastructure. ABP provides mechanisms to control tenant resources, such as limiting the number of users or other resources per tenant, typically through the use of Editions and Features.

You can define custom features (e.g., "MaxUserCount", "MaxCustomerCount") and assign them to Editions. Then, assign Editions to your tenants. In your business logic, you can check these feature values to enforce the limits when creating new users or customers.

There is no direct UI in the Angular management interface for setting these limits out-of-the-box, but the infrastructure is available for you to implement this logic using features and editions.

Example steps:

1. Define a feature (e.g., "MaxUserCount") in your solution.
2. Assign this feature to an Edition.
3. Assign the Edition to your tenant (your customer).
4. In your user/customer creation logic, check the current count against the feature value and prevent creation if the limit is reached.

Example code for checking a feature value:

var maxUserCount = await FeatureChecker.GetAsync<int>("MaxUserCount");
if (currentUserCount >= maxUserCount)
{
    throw new BusinessException("User limit reached for this tenant.");
}

For more details, see the official documentation on limiting tenant resources.

Sources:

• https://abp.io/docs/latest/Multi-Tenancy#limiting-tenant-resources

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• The error "IDX10223: Lifetime validation failed. The token is expired." indicates that the JWT access token used by your Hangfire job is expired at the time of execution. This is a common issue when background jobs are scheduled to run after the token's expiration, especially in distributed or tiered ABP applications.

• To resolve this, you should ensure that your Hangfire jobs acquire a fresh access token before making authorized API calls. Do not cache or reuse tokens for long-running or recurring jobs.

• In microservice or tiered ABP setups, the recommended approach is to use the client credentials flow to programmatically request a new token for each job execution. This ensures the token is always valid.

• If you are using ABP's built-in remote service proxies, configure them to use the client credentials flow and set up the necessary client in your IdentityServer/OpenIddict configuration.

• Avoid using user tokens for background jobs, as they will expire and cannot be refreshed without user interaction.

• If you are using distributed cache for tokens, ensure the cache expiration is not longer than the token's lifetime.

This approach aligns with common ABP conventions, but specific official documentation for this exact scenario is not available.

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To achieve a true Blazor WebAssembly (WASM) solution in ABP—where the client is a standalone WASM project (not hosted inside the ASP.NET Core project)—and to enable hot reload and "Edit and Continue" for faster development, you should use the "Layered Solution" template with the Blazor WebAssembly option. This separates the Blazor client and server, allowing you to run and debug the client project independently.

Steps to Set Up a Standalone Blazor WASM Solution

1. Create a Layered Solution with Blazor WASM:
   • Use ABP CLI or Studio to generate a new solution with the Blazor WebAssembly option:

abp new MyProject -t app -u blazor-wasm

• This creates:
  • MyProject.Blazor (Blazor host project)
  • MyProject.Blazor.Client (Blazor WASM client)
  • MyProject.HttpApi.Host (API backend)

2. Project Structure:

   • The *.Blazor.Client project is a pure WASM app. You can run and debug it directly, enabling hot reload and "Edit and Continue".
   • The *.Blazor project is the host (optional for deployment, not needed for local development).

3. Development Workflow:

   • Run MyProject.HttpApi.Host (API) and MyProject.Blazor.Client (WASM) separately.
   • In Visual Studio, set MyProject.Blazor.Client as the startup project for hot reload and fast debugging.
   • The client communicates with the API via HTTP, so ensure CORS is configured on the API.

4. Migrating Your Existing Solution:

   • If your current solution is "Blazor WebApp" (hosted), you will need to:
     • Create a new solution as above.
     • Move your pages, components, and logic from the old Blazor project to the new *.Blazor.Client project.
     • Update service references and DI registrations as needed.

5. Bundling and Global Assets:

   • With ABP 8.3+, use the new Global Assets system for JS/CSS bundling in WASM. See the article below for details.

Additional Notes

• This approach allows you to use all standard Blazor WASM development features, including hot reload and "Edit and Continue".
• For large projects, this separation significantly improves build and debug times.

Sources

• ABP Layered Solution: Blazor WebAssembly
• ABP Global Assets for Blazor WASM

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Starting from ABP Framework v8.3, there was a change in how audit properties (such as LastModifierId and LastModificationTime) are updated when navigation (child) properties change. In previous versions, updating a child entity through a parent would automatically update the parent's audit columns. However, after the update, this behavior was modified to only update the parent's audit columns if the navigation property itself changes, not just the child entity's data.

This means that if you update only the child entity (e.g., a collection or owned entity) and not the parent entity or its navigation property reference, the parent's audit columns will not be updated automatically.

To restore the previous behavior, you need to explicitly update the parent entity or set a property on the parent to trigger the audit property update when a child entity changes.

Example workaround:

// After updating the child entity
parentEntity.LastModificationTime = DateTime.Now; // or any other property change
await _parentRepository.UpdateAsync(parentEntity);

Alternatively, you can review your domain logic to ensure that any child entity update also marks the parent as modified if you want the audit columns to reflect changes in child entities.

Sources:

• https://abp.io/docs/latest/release-info/migration-guides/abp-8-3
• https://abp.io/support/questions/7462

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• The ABP Angular service proxy generator does not currently generate the type alias export type StringValues = string[]; automatically for DTOs that use types like IFormFile with properties such as headers: Record<string, StringValues>. This is a known limitation.

• As a workaround, you need to manually add export type StringValues = string[]; to your generated proxy files after each regeneration.

• This issue is related to how the proxy generator handles certain .NET types and their translation to TypeScript. There is an open issue for similar proxy generation problems:

  • https://github.com/abpframework/abp/issues/18932

• For more details on Angular service proxy generation, see the official documentation:

  • https://abp.io/docs/latest/UI/Angular/Service-Proxies

Currently, there is no built-in way to customize or extend the proxy generator to automatically include this type alias. You may consider scripting this addition as part of your build process until the generator is improved.

Sources:

• https://github.com/abpframework/abp/issues/18932
• https://abp.io/docs/latest/UI/Angular/Service-Proxies

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To resolve the "ABP-LIC-ERROR - License check failed for 'Volo.Abp.AspNetCore.Mvc.UI.Theme.Commercial-v9.2.1.0'" error in Azure App Service, ensure the following:

1. AbpLicenseCode Configuration
   • The AbpLicenseCode must be available to your application at runtime. In Azure App Service, the recommended approach is to set it as an environment variable in the App Service configuration.
   • Go to your Azure App Service > Configuration > Application settings, and add:

Name: AbpLicenseCode
     Value: <your-license-code>

• Save and restart your App Service.

2. Check Configuration File Deployment

   • If you use appsettings.json or appsettings.secrets.json to store the license code, ensure these files are actually deployed and present in the running environment. Missing configuration files are a common cause of this error.

3. Environment Variable Precedence

   • Environment variables override values in configuration files. If both are set, the environment variable will be used.

4. Case Sensitivity

   • The key must be exactly AbpLicenseCode (case-sensitive).

5. Restart After Changes

   • Always restart your App Service after updating environment variables or configuration files.

6. Check for Typographical Errors

   • Double-check for any typos in the key or value.

7. Review Application Logs

   • Check logs for any configuration loading errors or warnings.

These steps resolve most license code loading issues in Azure App Service and containerized ABP deployments.

Sources:

• https://abp.io/support/questions/6663
• https://abp.io/support/questions/9615
• https://abp.io/QA/Questions/245/ABP-LIC-0008---License-check-failed-for-'XXXXX'

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To download the source code for the LeptonX theme for Angular, you should use the following command, as documented in the official ABP documentation:

abp get-source Volo.Abp.LeptonXTheme

• The module name is Volo.Abp.LeptonXTheme (not Volo.Abp.LeptonXTheme.Pro).
• The "Pro" variant is not listed as a downloadable module; only Volo.Abp.LeptonXTheme is available.
• The command you used that succeeded (abp get-source Volo.Abp.LeptonXTheme --version 4.2.2) is correct and will download the available source code for the LeptonX theme.

Regarding the difference:

• Volo.Abp.LeptonXTheme is the official package for the LeptonX theme. There is no separate "Pro" source code module for Angular; all commercial features are included in the main LeptonXTheme package for ABP Commercial customers.
• The packages you see in the downloaded folder (such as "volo-lepton-x") are the correct Angular packages for the theme.

If you need the source code for additional packages (like "lepton-x", "lepton-x-abp-core", "lepton-x-core"), these are included as part of the LeptonXTheme source code structure. There is no separate command to download them individually.

If you encounter errors with abp add-package ... --with-source-code, it is likely because the source code for those packages is not distributed separately, but as part of the main LeptonXTheme source.

For more details, see the official documentation:

• LeptonX Theme Source Code Download
• Related Support Issue

Your folder structure matches the expected layout for the LeptonXTheme Angular source code.

If you need to build or understand the structure, refer to the documentation inside the downloaded package or the official docs.

Sources:

• https://abp.io/docs/latest/ui-themes/lepton-x/
• https://abp.io/support/questions/7811/Commercial-source-code-to-angular-package

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To map all exceptions of a specific type (such as BusinessException) to a particular HTTP status code (e.g., 422 Unprocessable Entity) in ABP Framework, you need to configure custom mappings in your application's startup. While the built-in Map method is for error codes, you can achieve type-based mapping by replacing the default status code finder service.

Here's how you can do it:

1. Create a custom implementation of DefaultHttpExceptionStatusCodeFinder:

using System.Net;
using Volo.Abp.AspNetCore.ExceptionHandling;
using Volo.Abp.ExceptionHandling;

public class CustomHttpExceptionStatusCodeFinder : DefaultHttpExceptionStatusCodeFinder
{
    public override HttpStatusCode GetStatusCode(HttpExceptionStatusCodeContext context)
    {
        if (context.Exception is BusinessException)
        {
            return (HttpStatusCode)422; // Unprocessable Entity
        }

        return base.GetStatusCode(context);
    }
}

2. Register your custom finder in the dependency injection container (usually in your module's ConfigureServices method):

using Microsoft.Extensions.DependencyInjection;
using Volo.Abp.AspNetCore.ExceptionHandling;

public override void ConfigureServices(ServiceConfigurationContext context)
{
    context.Services.AddTransient<IHttpExceptionStatusCodeFinder, CustomHttpExceptionStatusCodeFinder>();
}

This will ensure that all exceptions of type BusinessException are returned with HTTP status code 422.

Sources:

• https://abp.io/docs/latest/framework/fundamentals/exception-handling

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Based on your description, the issue is likely related to localization or caching inconsistencies for the zh-hans language, especially after upgrading to ABP 9.2.2. Here are steps to diagnose and resolve the problem:

1. Check Localization Resource Files

   • Ensure that all required localization keys exist for zh-hans, especially for menu items and permissions. Missing keys can cause UI elements to disappear for a specific language.

2. Verify Language Configuration

   • Confirm that zh-hans is correctly configured in your appsettings.json and that it matches the culture names used in your localization files.

3. Clear Distributed Cache Thoroughly

   • Since you are using Redis, ensure that all language-specific cache entries are cleared. ABP caches menu and permission data per language, so stale or corrupted cache for zh-hans could cause this issue.

4. Check for Permission Caching Issues

   • If permissions are cached per language, a cache key mismatch or corruption could cause menus to disappear. Try disabling distributed cache temporarily to see if the issue persists.

5. Review Customizations

   • If you have custom menu providers or permission checks, ensure they handle all languages and do not filter out zh-hans unintentionally.

6. Update All Packages

   • Make sure all ABP NuGet and NPM packages are updated to 9.2.2 to avoid version mismatches.

7. Check for Known Issues

   • Review the ABP release notes and GitHub issues for any known problems with localization or menu rendering in 9.2.x.

8. Debug Menu Generation

   • Add logging to your menu provider to see if the menu is being generated for zh-hans and if permissions are being granted as expected.

If the problem only occurs for zh-hans and resolves after some time, it is almost certainly a cache or localization resource issue.

Sources:

• Localization in the UI (ABP Documentation)

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• In a microservice-based ABP project, you can generate code for the backend services using ABP Studio and ABP Suite. However, as of the current version, UI (Angular frontend) code generation is not supported for the microservice template. This feature is on the roadmap for future releases.

Sources:

• https://abp.io/docs/latest/studio/working-with-suite

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