How can I get my webapp's base URL in ASP.NET MVC?

user_2354 0
Viewed 361675

How can I quickly determine what the root URL is for my ASP.NET MVC application? I.e., if IIS is set to serve my application at http://example.com/foo/bar, then I'd like to be able to get that URL in a reliable way that doesn't involve getting the current URL from the request and chopping it up in some fragile way that breaks if I re-route my action.

The reason that I need the base URL is that this web application calls another one that needs the root to the caller web application for callback purposes.

iis asp.net-mvc asp.net .net
27 Answers

On the webpage itself:

<input type="hidden" id="basePath" value="@string.Format("{0}://{1}{2}",
  HttpContext.Current.Request.Url.Scheme,
  HttpContext.Current.Request.Url.Authority,
  Url.Content("~"))" />

In the javascript:

function getReportFormGeneratorPath() {
  var formPath = $('#reportForm').attr('action');
  var newPath = $("#basePath").val() + formPath;
  return newPath;
}

This works for my MVC project, hope it helps

user_32001630

This was my solution (using .net core 3.1, in an api controller):

string baseUrl = $"{Request.Scheme}://{Request.Headers.Where(h => h.Key == "Host").First().Value}";
user_129923140 
@{
    var baseurl = Request.Url.Scheme + "://" + Request.Url.Host + ":" + Request.Url.Port + Url.Content("~");
}
@baseurl

--output http://localhost:49626/TEST/

user_27369700

In .net core 3.1 I used this approach:

$"{Request.Scheme}://{Request.Host}{Url.Content("~/")}"
user_23479990

The following worked solidly for me

var request = HttpContext.Request;
                        var appUrl = System.Web.HttpRuntime.AppDomainAppVirtualPath;

                        if (appUrl != "/")
                            appUrl = "/" + appUrl + "/";

                        var newUrl = string.Format("{0}://{1}{2}{3}/{4}", request.Url.Scheme, request.UrlReferrer.Host, appUrl, "Controller", "Action");
user_12224030
user_12711420

add this function in static class in project like utility class:

utility.cs content:

public static class Utility
{
    public static string GetBaseUrl()
    {
        var request = HttpContext.Current.Request;
        var urlHelper = new UrlHelper(request.RequestContext);
        var baseUrl = $"{request.Url.Scheme}://{request.Url.Authority}{urlHelper.Content("~")}";
        return baseUrl;
    }
}

use this code any where and enjoy it:

var baseUrl = Utility.GetBaseUrl();
user_94719030

Simply in one line get BaseUrl

string baseUrl = new Uri(Request.Url, Url.Content("~")).AbsoluteUri;

//output example: https://stackoverflow.com
user_85131850
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