Cheap ASP.NET OWIN and Katana Hosting – Easy to Develop a Simple Application Using OWIN

Easy to Develop a Simple Application Using OWIN

OWIN stands for The Open Web Interface for .NET. It is a standard for communication between .NET web servers and web applications. It defines required elements for HTTP request (details). We can say that it is a lightweight web server for .NET.


As OWIN is becoming popular and more common, it is important for ASP.NET developers to understand what OWIN and Katana are. ASP.NET Web API and ASP.NET Identity are already geared towards using these specifications. To that end this article explains what OWIN and Katana are and how they fit into the whole web development picture for ASP.NET developers. You will also develop a simple application to get a code level understanding of these features.

What is OWIN?

OWIN stands for Open Web Interface for .NET. OWIN is a specification that describes how web development frameworks such as ASP.NET MVC should interact with the web servers. The goal of OWIN is to decouple web applications from the web server by introducing an abstraction layer. Such an abstraction enables you to run the same application on all the web servers that support OWIN. Additionally, it simplifies the overall system because the abstraction layer can provide a lightweight infrastructure to host the applications. IIS provides a rich set of features to the web applications. However, web applications may not need all these features. It might be sufficient for them to have minimal HTTP processing capabilities. OWIN compatible host can provide such a hosting environment to these applications. Moreover, you can define a pipeline of modules that are used during the request processing. An OWIN pipeline is a chain of OWIN compatible components through which a request passes.

The OWIN specification is a community initiative and more details can be found at the website.

What is Katana?

Katana is a set of components by Microsoft built using OWIN specifications. Some of these components include Web API, ASP.NET Identity and SignalR.

Developing a Simple Application Using OWIN

First, we need to create application project. Let’s create ‘Empty Web Application’ (it might be also Console App).
Next, we will install two NuGet packages (using Package Manager Console):
Install-Package Microsoft.Owin.Host.SystemWeb
Install-Package Owin.Extensions
Then, we need to create ‘Startup class’.

You need to modify Web.config file, adding following code in configuration section:
Then you can run server (CTRL+F5) and you should see:

 Then you can run server (CTRL+F5) and you should see:

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Anjali Punjab

Anjali Punjab is a freelance writer, blogger, and ghostwriter who develops high-quality content for businesses. She is also a HubSpot Inbound Marketing Certified and Google Analytics Qualified Professional.