Detect QueryString and create Session on any Request URL-CodePudding

Currently, I'm detecting a QueryString and creating the session on the Action of the Controller. The query string can be coming in with the url to any deep page within the site. I don't want to code it in most of my Actions.

Therefore, I'm wondering, is there a generic way to detect QueryString in the URL in any request that comes to site's pages. I think I can create a 'BaseController' from the 'Controller' and change all my current Controller's to inherit from BaseController.

Is there any other ways? may be in RouteConfig.cs? Startup.Auth.cs?

CodePudding user response：

(.Net Core) You can craete custom middleware to detect any request using Httpcontext. read more about middleware . example of custom middleware

CodePudding user response：

Thanks KHAL, for your hint.

so in classic ASP.NET MVC, in Startup.Auth.cs file

app.Use(async (context, next) =>
        {
            var referral = context.Request.Query["referral"];
            if(referral == "whatever")
                {
                  //Do your thing ;)
                }

            // Call the next delegate/middleware in the pipeline
            await next();
        });

However, note that the position of this inside the Startup.Auth.cs file is critical, if you want to use Session. It cannot be at the top of the file