asp.net-web-api

How to use Container instead of ObjectFactory in StructureMap ServiceActivator?

The static stuff is going away. If your not using a Service Locator of some type you’re going to have implement your own “ObjectFactory” as referenced here: public static class ObjectFactory { private static readonly Lazy<Container> _containerBuilder = new Lazy<Container>(defaultContainer, LazyThreadSafetyMode.ExecutionAndPublication); public static IContainer Container { get { return _containerBuilder.Value; } } private static Container … Read more

OData V4 modify $filter on server side

Remove [EnableQuery] attribute, your scenario should work, because after using this attribute, OData/WebApi will apply your original query option after you return data in controller, if you already apply in your controller method, then you shouldn’t use that attribute. But if your query option contains $select, those code are not working because the result’s type … Read more

WebApi Help Page: don’t escape HTML in XML documentation

In the installed XmlDocumentationProvider.cs file at Areas\HelpPage, you can look for a method called GetTagValue. Here modify the return value from node.Value.Trim() to node.InnerXml. private static string GetTagValue(XPathNavigator parentNode, string tagName) { if (parentNode != null) { XPathNavigator node = parentNode.SelectSingleNode(tagName); if (node != null) { return node.InnerXml; } } return null; } Now open … Read more

MVC Web API not working with Autofac Integration

ASP.Net Wep.API and ASP.NET MVC uses two different IDependencyResolver (because they designed the Wep.API to not depend on ASP.NET MVC) so you need to setup both: var container = builder.Build(); DependencyResolver.SetResolver(new AutofacDependencyResolver(container)); GlobalConfiguration.Configuration.DependencyResolver = new AutofacWebApiDependencyResolver(container); So the AutofacDependencyResolver is needed to inject decencies to regular MVC Controller derived controllers. And the AutofacWebApiDependencyResolver is needed … Read more

Exceptions in ASP.NET Web API custom exception handler never reach top level when CORS is enabled

I have found the source of confusion. It seems, WebAPI by default is using this exception handler: https://aspnetwebstack.codeplex.com/SourceControl/latest#src/System.Web.Http/ExceptionHandling/DefaultExceptionHandler.cs and it has major differences from the suggested exception handling in this article: http://www.asp.net/web-api/overview/web-api-routing-and-actions/web-api-global-error-handling see chapter “Appendix: Base Class Details”, where the code of default exception base class is given. In the example it checks for IsOutermostCatchBlock … Read more

Constructor Dependency Injection WebApi Attributes

Yes, it is possible. You (like most people) are being thrown by Microsoft’s marketing of Action Filter Attributes, which are conveniently put into a single class, but not at all DI-friendly. The solution is to break the Action Filter Attribute into 2 parts as demonstrated in this post: An attribute that contains no behavior to … Read more

MVC5, Web API 2 and Ninject

The Ninject.Web.WebApi NuGet package has just been released. From now on the preferred solution is using that package. I couldn’t find any related documentation but after installing the package everything worked for me. Install-Package Ninject.Web.WebApi After installation both the normal MVC and the API controller instances are provided by Ninject. If you have Ninject.Web.Common already … Read more

Web API: how to access multipart form values when using MultipartMemoryStreamProvider?

Updated 4/28/2015 You could create a custom provider based on MultipartFormDataRemoteStreamProvider. Example: public class CustomMultipartFormDataProvider : MultipartFormDataRemoteStreamProvider { public override RemoteStreamInfo GetRemoteStream(HttpContent parent, HttpContentHeaders headers) { return new RemoteStreamInfo( remoteStream: new MemoryStream(), location: string.Empty, fileName: string.Empty); } } Updated Custom In-memory MultiaprtFormDataStreamProvider: public class InMemoryMultipartFormDataStreamProvider : MultipartStreamProvider { private NameValueCollection _formData = new NameValueCollection(); private … Read more