IRestClient given by IRequestPreparation Prepare method throws Progress.Sitefinity.RestSdk.Exceptions.ErrorCodeException: The current user is not allowed access

[chenyuAC]

None of the examples here make use of the IRestClient passed in

sitefinity-aspnetcore-mvc-samples/src/share-data-between-widgets/CategoryPreparation.cs

Line 18 in 5df33c7

public Task Prepare(PageModel pageModel, IRestClient restClient, HttpContext context)

sitefinity-aspnetcore-mvc-samples/src/master-detail/EventPreparation.cs

Line 24 in 5df33c7

public async Task Prepare(PageModel pageModel, IRestClient restClient, HttpContext context)

When I attempt to use it to query any content type data, it throws

System.AggregateException: One or more errors occurred. (The current user is not allowed access)
 ---> Progress.Sitefinity.RestSdk.Exceptions.ErrorCodeException: The current user is not allowed access
   at Progress.Sitefinity.RestSdk.Client.RestClient.SendMessage[T](RequestData requestData)
   at Progress.Sitefinity.RestSdk.Client.RestClient.GetItems[T](GetAllArgs args)
   at Renderer.Services.RequestPreparations.Prepare(PageModel pageModel, IRestClient restClient, HttpContext context)
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task.WaitAllCore(Task[] tasks, Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at System.Threading.Tasks.Task.WaitAll(Task[] tasks)
   at Progress.Sitefinity.AspNetCore.Preparations.PreparationsInitializer.RunCustomRequests(IRestClient restClient, RequestArgs requestArgs, PageModel pageModel, HttpContext httpContext)
   at Progress.Sitefinity.AspNetCore.Preparations.PreparationsInitializer.Initialize(IRestClient restClient, PageModel pageModel, HttpContext httpContext)
   at Progress.Sitefinity.AspNetCore.Http.Proxy.DefaultProxyHandler.InitRestClient(HttpContext httpContext, String metadataHash, RequestContext requestContext, IRenderContext renderContext)
   at Progress.Sitefinity.AspNetCore.Http.Proxy.DefaultProxyHandler.HandlePageModelResponse(HttpContext httpContext, HttpResponseMessage httpResponseMessage, Func`1 next)
   at Progress.Sitefinity.AspNetCore.Http.Proxy.DefaultProxyHandler.TryHandleResponse(HttpResponseMessage httpResponseMessage, HttpContext httpContext, Func`1 next, Boolean disabledProxy)
   at Progress.Sitefinity.AspNetCore.Http.Proxy.DefaultProxyHandler.SendHttpRequestMessage(HttpRequestMessage httpRequestMessage, Uri forwardHost, HttpClient httpClient, HttpContext context, Func`1 next, Func`2 sendRequest, ISitefinityConfig sitefinityConfig)
   at Progress.Sitefinity.AspNetCore.Http.Proxy.DefaultProxyHandler.SendHttpRequestMessage(HttpRequestMessage httpRequestMessage, Uri forwardHost, HttpClient httpClient, HttpContext context, Func`1 next, Func`2 sendRequest, ISitefinityConfig sitefinityConfig)
   at Progress.Sitefinity.AspNetCore.Http.Proxy.DefaultProxyHandler.<>c__DisplayClass6_0.<<TryHandleRequest>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at Progress.Sitefinity.AspNetCore.Http.Proxy.DefaultProxyHandler.TryHandleRequest(HttpContext context, Func`1 next)
   at Progress.Sitefinity.AspNetCore.Areas.Diagnostics.Profiling.ProxyMiddleware.Invoke(HttpContext context)
   at Progress.Sitefinity.AspNetCore.Areas.Cache.ExternalCacheMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.OutputCaching.OutputCacheMiddleware.InvokeAwaited(HttpContext httpContext, IReadOnlyList`1 policies)
   at Progress.Sitefinity.AspNetCore.ResourcePackages.ResourcePackagesMiddleware.Invoke(HttpContext context)
   at Progress.Sitefinity.AspNetCore.Web.UI.EmbeddedResourceMiddleware.Invoke(HttpContext context)
   at Progress.Sitefinity.AspNetCore.Areas.Diagnostics.Profiling.DiagnosticsMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)

Is the IRestClient working here? If I use the IRestClient from dependency injection as following it works

public class RequestPreparations(ILogger<RequestPreparations> logger, IRestClient restClientDI) : IRequestPreparation

I have WebServiceApiKey configured, is it related?

[Novkirishki]

Hello @chenyuAC,

Thank you for contacting us about this.
The IRestClient that comes as a parameter in the Prepare method of the IRequestPreparation is in fact a batch client. This means it accumulates requests from all preparations and executes them at once. Therefore the result from this client should be anticipated asynchronously (for example by using ContinueWith()).

I have updated the sample to showcase this: PR

Do not hesitate to contact us in case you have further questions or issues.

Best,
Niki

[chenyuAC]

@Novkirishki Thank you for updating the example.

I have a related question that I hope you can assist with. Is it possible to retrieve draft content items, such as in preview mode?

It seems that the built-in ContentList Widget from https://github.com/Sitefinity/sitefinity-aspnetcore-mvc-widgets)](https://github.com/Sitefinity/sitefinity-aspnetcore-mvc-widgets utilizes the requestContext.ResolvedDetailItem, as implemented here: https://github.com/Sitefinity/sitefinity-aspnetcore-mvc-widgets/blob/2a5bee615e8e93f2a0727c3afdf11aa07c17a02b/Progress.Sitefinity.AspNetCore.Widgets/Models/ContentList/ContentListModelForDetail.cs#L93

Is it possible to access this item (especially in draft state) in an IRequestPreparation implementation? I am encountering challenges querying items in draft state within our custom master-detail widget implementation using IRequestPreparation.

[Novkirishki]

The default restClient uses the web service that is set in the appsettings.json file. By default it is 'api/default'. This is a frontend web service and therefore returns only live items and not drafts.

In order to fetch draft items you should use a backend web service such as 'sf/system'.
You can check this.

Another alternative is to create a custom endpoint that returns the desired item: Docs

You can contact Sitefinity support for more info.

Best,
Niki