What is it? Open API (alternatively known as Swagger) is a language-agnostic specification for describing REST APIs. The Open API ecosystem has tools that allows for discovering, testing and producing client code using the specification. Support for generating and visualizing Open API documents in ASP.NET Core MVC is provided via community driven ...

As part of the 2.2.0-preview1 release, we’ve added support for HTTP/2 in Kestrel. What is HTTP/2? HTTP/2 is a major revision of the HTTP protocol. Some of the notable features of HTTP/2 are support for header compression and fully multiplexed streams over the same connection. While HTTP/2 preserves HTTP’s semantics (HTTP headers, methods, etc) it...

Today we’re very happy to announce that the first preview of the next minor release of ASP.NET Core and .NET Core is now available for you to try out. We’ve been working hard on this release over the past months, along with many folks from the community, and it’s now ready for a wider audience to try it out and provide the feedback that will contin...

Change default transport to Sockets Building off the improvements to the managed sockets implementation in .NET Core we have changed the default transport in Kestrel from libuv to sockets. As a consequence, the  package is no longer part of the  metapackage. How to switch back to libuv To continue using libuv as your transport, you will need to ...

The ASP.NET Core Module (ANCM) is a global IIS module that has been responsible for proxying requests over from IIS to your backend ASP.NET Core application running Kestrel. Since 2.0 we have been hard at work to bring to two major improvements to ANCM: version agility and performance. Note, that in the 2.1.0-preview1 release,...

With a recent update to Visual Studio 2017, we have added support for debugging ASP.NET Core applications against IIS. This blog post will walk you through enabling this feature and setting up your project to use this feature. Getting Started To get started: Enable IIS Before you can enable Development time IIS support in Visual St...