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An exception occurred, but response has already started #953


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Denis created

I created several modules using ABP suite. Every module provides API, does not have Web GUI. Also I have Application which generated by ABP Suite. I included my modules to application. I run application and call endpoint of module. The endpoint returns OK result or ERR_INCOMPLETE_CHUNKED_ENCODING. But in the log I can find BusinessException expection which thrown during endpoint call. Also before this expection there is "An exception occurred, but response has already started" message. The expection is thrown in local event handler, which is triggered in by domain entity. When I run module separatly, using host in module solution, endpoint works well and returns error when exception occurs

Endpoint

 [Authorize(ProductManagementPermissions.Products.Create)]
        public virtual async Task<ProductDto> CreateProduct(ProductCreateDto input)
        {
            Product product;
            
        var attributeSet =
            await _attributeSetRepository.InsertAsync(new AttributeSet(_guidGenerator.Create()), true);
        var imageUri = !string.IsNullOrWhiteSpace(input.ImageUri) ? new Uri(input.ImageUri) : null;

        product = new Product(
            _guidGenerator.Create(),
            _currentTenant.Id,
            new ProductTitle(input.Title),
            attributeSet,
            new ProductCode(input.Code),
            imageUri);

            await _productRepository.InsertAsync(product);
            
            return ObjectMapper.Map<Product, ProductDto>(product);
        }

Product

public class Product : FullAuditedAggregateRoot<Guid>, IMultiTenant
    {
        public Guid? TenantId { get; }
        public Guid? GroupId { get; }
        public Guid AttributeSetId { get; }
        public ProductTitle Title { get; private set; }
        public ProductCode Code { get; private set; }
        public Uri? ImageUri { get; private set; }

        protected Product()
        {

        }

        public Product(
            Guid id,
            Guid? tenantId,
            ProductTitle title,
            AttributeSet attributeSet,
            ProductCode productCode,
            Uri? imageUri = null)
            : base(id)
        {
            TenantId = tenantId;
            AttributeSetId = attributeSet.Id;
            ImageUri = imageUri;
            SetCode(productCode);
            SetTitle(title);
        }

        internal Product(
            Guid id, 
            Guid? tenantId,
            Group group,
            ProductTitle title, 
            AttributeSet attributeSet, 
            ProductCode productCode, 
            Uri? imageUri = null)
            : this(id, tenantId, title, attributeSet, productCode, imageUri)
        {
            GroupId = group.Id;
        }

        public StockKeepingUnit CreateSku(Guid id, SkuCode code, SkuTitle title, AttributeSet attributeSet)
        {
            Check.NotNull(attributeSet.ParentAttributeSetId, nameof(attributeSet.ParentAttributeSetId));
            
            var childHasDifferentParentSet = AttributeSetId != attributeSet.ParentAttributeSetId;

            if (childHasDifferentParentSet)
            {
                throw new AttributeSetNotInheritedFromParentAttributeSetException(
                    parentSetId: AttributeSetId,
                    parentSetIdInChild: attributeSet.ParentAttributeSetId.Value);
            }

            return new StockKeepingUnit(
                id,
                TenantId,
                this,
                attributeSet,
                title,
                code,
                ImageUri);
        }

        public void ChangeTitle(ProductTitle title)
        {
            SetTitle(title);
        }

        public void ChangeImageUri(Uri imageUri)
        {
            Check.NotNull(imageUri, nameof(imageUri));
        }

        private void SetTitle(ProductTitle title)
        {
            Check.NotNull(title, nameof(title));
           
            Title = title;
            
            AddLocalEvent(new ProductTitleAddingEvent()
            {
                Title = title
            });
        }

        private void SetCode(ProductCode productCode)
        {
            Check.NotNull(productCode, nameof(productCode));

            Code = productCode;
            
            AddLocalEvent(new ProductCodeAddingEvent()
            {
                ProductCode = productCode
            });
        }
    }

Event handler

public class ProductEventHandler : 
            ILocalEventHandler<ProductTitleAddingEvent>,
            ILocalEventHandler<ProductCodeAddingEvent>,
            ITransientDependency
    {
        private readonly ICurrentTenant _currentTenant;
        private readonly IProductRepository _productRepository;

        public ProductEventHandler(
            ICurrentTenant currentTenant,
            IProductRepository productRepository)
        {
            _currentTenant = currentTenant;
            _productRepository = productRepository;
        }

        public async Task HandleEventAsync(ProductTitleAddingEvent eventData)
        {
            if (await TitleAlreadyExist(eventData.Title))
            {
                throw new AlreadyExistException(eventData.Title.Value, nameof(Product));
            }
        }

        public async Task HandleEventAsync(ProductCodeAddingEvent eventData)
        {
            if (await CodeAlreadyExist(eventData.ProductCode))
            {
                throw new AlreadyExistException(eventData.ProductCode.Value, nameof(Product));
            }
        }

        private async Task<bool> TitleAlreadyExist(ProductTitle title)
        {
            return await _productRepository.CountAsync(p=>
                p.TenantId == _currentTenant.Id && p.Title.Value == title.Value) > 1;
        }

        private async Task<bool> CodeAlreadyExist(ProductCode productCode)
        {
            return await _productRepository.CountAsync(p =>
                p.TenantId == _currentTenant.Id && p.Code.Value == productCode.Value) > 1;
        }
    }
  • ABP Framework version: v4.2.0
  • UI type: Angular
  • DB provider: EF Core
  • Tiered (MVC) or Identity Server Separated (Angular): no
  • Exception message and stack trace:
  • Steps to reproduce the issue:

8 Answer(s)
  • User Avatar
    0
    maliming created
    Support Team Fullstack Developer

    HI

    Can you share the full error logs include stack.

  • User Avatar
    0
    Denis created

    Sure

    2021-02-24 13:27:47.941 +00:00 [INF] Route matched with {area = "ProductManagement", controller = "Product", action = "CreateProduct", page = ""}. Executing controller action with signature System.Threading.Tasks.Task`1[LinkSE.ProductManagement.Products.ProductDto] CreateProduct(LinkSE.ProductManagement.Products.ProductCreateDto) on controller LinkSE.ProductManagement.Controllers.Products.ProductController (LinkSE.ProductManagement.HttpApi).
    2021-02-24 13:27:47.973 +00:00 [DBG] PermissionStore.GetCacheItemAsync: pn:U,pk:a94ba6dc-a8f8-ae4f-fa5c-39faa9bfec06,n:ProductManagement.Products.Create
    2021-02-24 13:27:47.974 +00:00 [DBG] Found in the cache: pn:U,pk:a94ba6dc-a8f8-ae4f-fa5c-39faa9bfec06,n:ProductManagement.Products.Create
    2021-02-24 13:27:47.974 +00:00 [DBG] PermissionStore.GetCacheItemAsync: pn:R,pk:admin,n:ProductManagement.Products.Create
    2021-02-24 13:27:47.974 +00:00 [DBG] Found in the cache: pn:R,pk:admin,n:ProductManagement.Products.Create
    2021-02-24 13:27:47.974 +00:00 [DBG] PermissionStore.GetCacheItemAsync: pn:U,pk:a94ba6dc-a8f8-ae4f-fa5c-39faa9bfec06,n:ProductManagement.Products
    2021-02-24 13:27:47.974 +00:00 [DBG] Found in the cache: pn:U,pk:a94ba6dc-a8f8-ae4f-fa5c-39faa9bfec06,n:ProductManagement.Products
    2021-02-24 13:27:47.975 +00:00 [DBG] PermissionStore.GetCacheItemAsync: pn:R,pk:admin,n:ProductManagement.Products
    2021-02-24 13:27:47.975 +00:00 [DBG] Found in the cache: pn:R,pk:admin,n:ProductManagement.Products
    2021-02-24 13:27:47.975 +00:00 [INF] Authorization was successful.
    2021-02-24 13:27:48.023 +00:00 [DBG] Added 0 entity changes to the current audit log
    2021-02-24 13:27:48.024 +00:00 [DBG] Added 0 entity changes to the current audit log
    2021-02-24 13:27:48.025 +00:00 [INF] Executing ObjectResult, writing value of type 'LinkSE.ProductManagement.Products.ProductDto'.
    2021-02-24 13:27:48.025 +00:00 [INF] Executed action LinkSE.ProductManagement.Controllers.Products.ProductController.CreateProduct (LinkSE.ProductManagement.HttpApi) in 84.2536ms
    2021-02-24 13:27:48.026 +00:00 [INF] Executed endpoint 'LinkSE.ProductManagement.Controllers.Products.ProductController.CreateProduct (LinkSE.ProductManagement.HttpApi)'
    2021-02-24 13:27:48.114 +00:00 [DBG] Added 0 entity changes to the current audit log
    2021-02-24 13:27:48.114 +00:00 [DBG] Added 0 entity changes to the current audit log
    2021-02-24 13:27:48.180 +00:00 [WRN] An exception occurred, but response has already started!
    2021-02-24 13:27:48.180 +00:00 [ERR] An unhandled exception has occurred while executing the request.
    LinkSE.Common.Exceptions.AlreadyExistException: Exception of type 'LinkSE.Common.Exceptions.AlreadyExistException' was thrown.
       at LinkSE.ProductManagement.Products.EventHandlers.ProductEventHandler.HandleEventAsync(ProductCodeAddingEvent eventData)
       at Volo.Abp.EventBus.EventBusBase.TriggerHandlerAsync(IEventHandlerFactory asyncHandlerFactory, Type eventType, Object eventData, List`1 exceptions)
       at Volo.Abp.EventBus.Local.LocalEventBus.PublishAsync(Type eventType, Object eventData)
       at Volo.Abp.Domain.Entities.Events.EntityChangeEventHelper.TriggerLocalEvents(List`1 localEvents)
       at Volo.Abp.Domain.Entities.Events.EntityChangeEventHelper.TriggerEventsInternalAsync(EntityChangeReport changeReport)
       at Volo.Abp.Domain.Entities.Events.EntityChangeEventHelper.TriggerEventsAsync(EntityChangeReport changeReport)
       at Volo.Abp.EntityFrameworkCore.AbpDbContext`1.SaveChangesAsync(Boolean acceptAllChangesOnSuccess, CancellationToken cancellationToken)
       at Volo.Abp.Uow.UnitOfWork.SaveChangesAsync(CancellationToken cancellationToken)
       at Volo.Abp.Uow.UnitOfWork.CompleteAsync(CancellationToken cancellationToken)
       at Volo.Abp.AspNetCore.Uow.AbpUnitOfWorkMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)
       at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass6_1.<<UseMiddlewareInterface>b__1>d.MoveNext()
    --- End of stack trace from previous location ---
       at Volo.Abp.AspNetCore.ExceptionHandling.AbpExceptionHandlingMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)
       at Volo.Abp.AspNetCore.ExceptionHandling.AbpExceptionHandlingMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)
       at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass6_1.<<UseMiddlewareInterface>b__1>d.MoveNext()
    --- End of stack trace from previous location ---
       at Microsoft.AspNetCore.Builder.ApplicationBuilderAbpJwtTokenMiddlewareExtension.<>c__DisplayClass0_0.<<UseJwtTokenMiddleware>b__0>d.MoveNext()
    --- End of stack trace from previous location ---
       at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
       at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.<Invoke>g__Awaited|6_0(ExceptionHandlerMiddleware middleware, HttpContext context, Task task)
       at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.HandleException(HttpContext context, ExceptionDispatchInfo edi)
       at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.<Invoke>g__Awaited|6_0(ExceptionHandlerMiddleware middleware, HttpContext context, Task task)
       at Microsoft.AspNetCore.Diagnostics.StatusCodePagesMiddleware.Invoke(HttpContext context)
       at Microsoft.AspNetCore.Localization.RequestLocalizationMiddleware.Invoke(HttpContext context)
       at Microsoft.AspNetCore.RequestLocalization.AbpRequestLocalizationMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)
       at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass6_1.<<UseMiddlewareInterface>b__1>d.MoveNext()
    --- End of stack trace from previous location ---
       at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication`1 application)
    2021-02-24 13:27:48.180 +00:00 [WRN] The response has already started, the error handler will not be executed.
    2021-02-24 13:27:48.181 +00:00 [ERR] Connection id "0HM6O5GA1U0OV", Request id "0HM6O5GA1U0OV:00000002": An unhandled exception was thrown by the application.
    LinkSE.Common.Exceptions.AlreadyExistException: Exception of type 'LinkSE.Common.Exceptions.AlreadyExistException' was thrown.
       at LinkSE.ProductManagement.Products.EventHandlers.ProductEventHandler.HandleEventAsync(ProductCodeAddingEvent eventData)
       at Volo.Abp.EventBus.EventBusBase.TriggerHandlerAsync(IEventHandlerFactory asyncHandlerFactory, Type eventType, Object eventData, List`1 exceptions)
       at Volo.Abp.EventBus.Local.LocalEventBus.PublishAsync(Type eventType, Object eventData)
       at Volo.Abp.Domain.Entities.Events.EntityChangeEventHelper.TriggerLocalEvents(List`1 localEvents)
       at Volo.Abp.Domain.Entities.Events.EntityChangeEventHelper.TriggerEventsInternalAsync(EntityChangeReport changeReport)
       at Volo.Abp.Domain.Entities.Events.EntityChangeEventHelper.TriggerEventsAsync(EntityChangeReport changeReport)
       at Volo.Abp.EntityFrameworkCore.AbpDbContext`1.SaveChangesAsync(Boolean acceptAllChangesOnSuccess, CancellationToken cancellationToken)
       at Volo.Abp.Uow.UnitOfWork.SaveChangesAsync(CancellationToken cancellationToken)
       at Volo.Abp.Uow.UnitOfWork.CompleteAsync(CancellationToken cancellationToken)
       at Volo.Abp.AspNetCore.Uow.AbpUnitOfWorkMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)
       at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass6_1.<<UseMiddlewareInterface>b__1>d.MoveNext()
    --- End of stack trace from previous location ---
       at Volo.Abp.AspNetCore.ExceptionHandling.AbpExceptionHandlingMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)
       at Volo.Abp.AspNetCore.ExceptionHandling.AbpExceptionHandlingMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)
       at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass6_1.<<UseMiddlewareInterface>b__1>d.MoveNext()
    --- End of stack trace from previous location ---
       at Microsoft.AspNetCore.Builder.ApplicationBuilderAbpJwtTokenMiddlewareExtension.<>c__DisplayClass0_0.<<UseJwtTokenMiddleware>b__0>d.MoveNext()
    --- End of stack trace from previous location ---
       at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
       at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.<Invoke>g__Awaited|6_0(ExceptionHandlerMiddleware middleware, HttpContext context, Task task)
       at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.HandleException(HttpContext context, ExceptionDispatchInfo edi)
       at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.<Invoke>g__Awaited|6_0(ExceptionHandlerMiddleware middleware, HttpContext context, Task task)
       at Microsoft.AspNetCore.Diagnostics.StatusCodePagesMiddleware.Invoke(HttpContext context)
       at Microsoft.AspNetCore.Localization.RequestLocalizationMiddleware.Invoke(HttpContext context)
       at Microsoft.AspNetCore.RequestLocalization.AbpRequestLocalizationMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)
       at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass6_1.<<UseMiddlewareInterface>b__1>d.MoveNext()
    --- End of stack trace from previous location ---
       at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication`1 application)
    2021-02-24 13:27:48.181 +00:00 [INF] Request finished HTTP/1.0 POST https://api.linkse.dev/api/product-management/products application/json 104 - 200 - application/json;+charset=utf-8 254.6321ms
    
  • User Avatar
    0
    maliming created
    Support Team Fullstack Developer

    hi @Denis

    Can you share a project to reproduce this problem? @liming.ma@volosoft.com

  • User Avatar
    0
    Denis created

    Hi @maliming

    Do you mean the project I currently working on? if yes, unfortunatly I can not But I could create sample project which repoduces this issue. I think it will be also easy for you

    Steps

    1. Create module project
    2. Create entity with string Title property
    3. Add method SetTile which assigns Title on entity construction and fires local TitleCreated event
    4. Create TitleCreated event handler and make it throw excpetion
    5. Create application service with endpoint which creates Product in memory and saves it via repo. Create controller as well
    6. Create Application project
    7. Reference module in Application
    8. Run application and call endpoint
  • User Avatar
    0
    maliming created
    Support Team Fullstack Developer

    hi Denis

    I am worried that I will miss some steps, can you directly send me a demo project that contains the above steps?

  • User Avatar
    0
    Denis created

    I would like to suggest remote session via TeamViewer or any other tool. I will show the issue. What do you think?

  • User Avatar
    0
    maliming created
    Support Team Fullstack Developer

    hi Denis

    You have shared the steps to reproduce the problem, please share this project to me, it is very cumbersome to remotely check the source code.

  • User Avatar
    0
    ServiceBot created
    Support Team Automatic process manager

    This question has been automatically marked as stale because it has not had recent activity.

Made with ❤️ on ABP v9.1.0-preview. Updated on December 05, 2024, 12:19