How to get IpAddress and UserAgent in ASP.NET Web API get methods

[Originally Posted By]:

I am using ASP.NET Web Api to expose a few GET methods.

But before I return the data I need to log a couple of details to the db, of which few of them are as listed below :

  • Caller’s Ip
  • Caller’s User Agent
  • Caller’s Used Url

Now in the controller when I used to do this I used to use the following code,

var ipAddress = Request.ServerVariables["REMOTE_ADDR"];
var userAgent = Request.UserAgent;

But here in Web API I am unable to use this.

Can anyone please help me out with this.


I figured it out,

public static LogModel GetApiLogDetails()
    var logModel = new LogModel();
    logModel.TimeStamp   = DateTime.Now;
    logModel.CallerIp    = HttpContext.Current.Request.UserHostAddress;
    logModel.CallerAgent = HttpContext.Current.Request.UserAgent;
    logModel.CalledUrl   = HttpContext.Current.Request.Url.OriginalString;
    return logModel;

with a little help from

Get Web Api consumer IP Address and HostName in C# &

Get the IP address of the remote host


You should use HttpRequestMessage class, that conteins all data you need.

Read more:


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