How can I get the url from the business logic layer?

Question

I have a business logic layer in a C# project and I need to find a way to generate a url based on the base url that is running the web site.

For example, this is the url: http://localhost:56240/Management/Quiz.aspx?QuizID=46

I need a way to get this part: http://localhost:56240 using a C# code from the business logic layer (means I don't can't use the Request object or context.Request).

Is there a way to do that ?

Answer 1

From your class, you can use the HttpContext.Current property (in System.Web.dll). From there, you can use Request object as well. For example

HttpRequest request = HttpContext.Current.Request;
string url = request.Url.Authority.ToString();

Don't forget to include the reference for System.Web in your class.

Answer 2

call the method from presentation layer and pass HttpContext to business logic layer, you can use HttpContext.Request.Url.Authority to get your domain http://localhost:56240

or you can directly pass Request.Url.Authority as a String to your method if you don need others thing in HttpContext

Answer 3

One of the solution would be to return the path of the url from the Logic layer ie without host. And append the host at the controller level.

From Logic

return new LogicResponseObject() {
...
Path = "/test/path/"
...
};

At Controller/Web/Service layer

HttpRequest request = HttpContext.Current.Request; //Get request object
string authority = request.Url.Authority; //http://www.example.com
string url = authority + logicResponseObject.Path; //http://www.example.com/test/path/

This way the logic will be de coupled with HTTP context object.