How to Get User IP in ASP.NET MVC API Controller

Question

I have tried the Request.UserHostAddress; but API controller doesn't have UserHostAddress inside Request.

Sorry, I was confused. Check this other question: http://stackoverflow.com/questions/9565889/get-the-ip-address-of-the-remote-host — Claudio Redi, Sep 26 '12 at 18:06

score 19 · Accepted Answer · edited Oct 20 '13 at 04:55

19

IP = ((HttpContextBase)request.Properties["MS_HttpContext"]).Request.UserHostAddress;

edited Oct 20 '13 at 04:55

Bhushan Firake

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answered Sep 27 '12 at 11:37

Sando

667
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14

Is it not a typo "request" -> "Request" ?? – himanshupareek66 May 23 '18 at 13:13

score 10 · Answer 2 · answered Oct 20 '13 at 04:38

10

I am using the following code and it work for me....

string ipAddress =   System.Web.HttpContext.Current.Request.UserHostAddress;

answered Oct 20 '13 at 04:38

Md. Nazrul Islam

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It gives host address – Pranav Labhe Jul 06 '15 at 11:44

Garrett Fogerlie · Answer 3 · 2013-11-15T07:52:52.097

8

According to this, a more complete way would be:

private string GetClientIp(HttpRequestMessage request)
{
    if (request.Properties.ContainsKey("MS_HttpContext"))
    {
        return ((HttpContext)request.Properties["MS_HttpContext"]).Request.UserHostAddress;
    }
    else if (request.Properties.ContainsKey(RemoteEndpointMessageProperty.Name))
    {
        RemoteEndpointMessageProperty prop;
        prop = (RemoteEndpointMessageProperty)this.Request.Properties[RemoteEndpointMessageProperty.Name];
        return prop.Address;
    }
    else
    {
        return null;
    }
}

In the past, on MVC 3 projects (not API,) we used to use the following:

string IPAddress = Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

if (String.IsNullOrEmpty(IPAddress))
    IPAddress = Request.ServerVariables["REMOTE_ADDR"];

edited Nov 15 '13 at 07:52

answered May 27 '13 at 14:53

Garrett Fogerlie

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2

I ended up doing a little extra research because it felt odd that you would pick up a request header in a server variable. context.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] is picking up what is picking up the X-Forward-For request header sent by Proxy Servers and Load Balancers. – muglio May 25 '15 at 06:27
`HTTP_X_FORWARDED_FOR` may contain multiple addresses.You should check for that. [Example](https://stackoverflow.com/a/7348761/790465) – Igor Yalovoy Apr 24 '18 at 16:17

How to Get User IP in ASP.NET MVC API Controller

3 Answers3