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Wednesday 16 March 2011

WCF REST: How to get a Request header

Again WCF REST is proving secretive when it comes to getting at your Request Headers.

You can get at any custom Request headers that you may be expecting via the IncomingMessageProperties off of the OperationContext in the same way as before when you were adding custom Headers to your response.

To do this you you can write something like this:
var request = OperationContext.Current.IncomingMessageProperties[HttpRequestMessageProperty.Name] as HttpRequestMessageProperty;
var version = request.Headers["ApiVersion"];

Update:

Actually, there is an easier way I found. Since this is in a REST service it is possible to use WebOperationContext which seems a lot more intuitive and concise:
var version = WebOperationContext.Current.IncomingRequest.Headers["ApiVersion"];

You will then have access to any expected Request Headers as a string.

More WCF REST:

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Posted by Colin Farr at Wednesday, March 16, 2011 Labels: ,

11 comments:

  1. Unknown18 March 2013 at 14:19

    You rock!
    For others trying this same thing, sending information from an asp.net program is as easy as adding a .Add:
    wc.Encoding = System.Text.Encoding.UTF8;
    wc.Headers["User-Agent"] = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727; .NET4.0C; .NET4.0E)";
    wc.Headers["Content-Type"] = "application/json";
    wc.Headers.Add("myCustomHeader", "Custom Value");
    dynamic a = wc.UploadString(new Uri(url), data);

    On the server side:
    string glub = System.ServiceModel.Web.WebOperationContext.Current.IncomingRequest.Headers["myCustomHeader"];

    Thank you so much!

    ReplyDelete
  2. Diego Correa10 May 2013 at 20:59

    Thank you, it was very useful to me

    ReplyDelete
  3. EasyITZone15 July 2015 at 10:54

    Thank you so much! !..

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    Thank you for your help

    ReplyDelete
  5. Unknown3 February 2017 at 12:23

    Thanks

    ReplyDelete
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