HttpContext in .net standard library

c# .net asp.net-core .net-standard
Vishal A picture Vishal A · Nov 17, 2017 · Viewed 22.3k times · Source

I am working on couple of projects one of which is an ASP.NET 4.5 application and other one is .Net Core API 1.1 project. The asp.net application is using HttpContext classes to read cookies and page headers. Now, I need to move this to a .net standard library which can be used by both the project. I don't find HttpContext in .net standard SDK. Any suggestions?

Answer

Camilo Terevinto picture Camilo Terevinto · Nov 17, 2017

There's a problem to your approach: .NET Standard is the most bare-bones implementation of .NET available, meaning that only basic features which are platform- and scenario-agnostic are implemented.
HttpContext exists on both the .NET Framework and .NET Core (both of which implement .NET Standard, by the way), but being specific to the Web, it does not exist on .NET Standard.

So, you have three options:

  1. Target the .NET Framework and use System.Web.HttpContext
  2. Target .NET Core and use Microsoft.AspNetCore.Http.HttpContext
  3. Move the logic that uses HttpContext away from the .NET Standard project

Do notice, though, that those classes vary greatly. The .NET Core version was created for ASP.NET Core which is vastly different to ASP.NET 4.5 and olders.

Related questions

How to get memory available or used in C# .net core / .net standard

Is there a way to know the current used memory in the current process? I checked many questions: How to get the amount of memory used by an application How to get memory available or used in C# They are …

Read More
.net Core 2.0 - Package was restored using .NetFramework 4.6.1 instead of target framework .netCore 2.0. The package may not be fully compatible

I have a .net core 2.0 console app. I'm trying to read files from TFS using the following: How to get a file from TFS directly into memory (i.e., don't want to read from file system into memory)? I head …

Read More
Add client certificate to .net core Httpclient

I was playing around with .Net Core and building an API that utilizes payment APIs. There's a client certificate that needs to be added to the request for two-way SSL authentication. How can I achieve this in .Net Core using …

Read More