How to Read HTTP header value

Question

I have a WebService that is being called from an Iphone app (that I am also building)

In my webservice is it being self hosted inside a Service and it is all working well, except I would like to move a security token into the Headers of the Request so that the class objects remain neat. (If I can't get it in the header, i'll resort to putting it in the class but that's a bit ugly imo).

I have looked at the code in this http://msdn.microsoft.com/en-us/library/system.servicemodel.operationcontext.incomingmessageheaders.aspx#Y342 and I can't seem to enumerate the header value.

Looking in Fiddler, I can see the header is being passed through

POST http://192.168.1.221:11001/StockControl/json/SubmitResults HTTP/1.1
Device-Token: bwI2YiAHR4q3Ba5JVj99Cw==
Content-Type: application/json
Content-Length: 1663
User-Agent: StockManage/1.0 CFNetwork/609 Darwin/12.1.0

I'm not sure if I haven't set up my SelfHosted configuration correctly or if I haven't implemented a necessary interface .

WCF IClientMessageInspector and the incoming SOAP headers but this is using SOAP and I'm using JSON.

My Endpoint is setup using the following

WebHttpBinding jsonBind = new WebHttpBinding();
ServiceEndpoint jsonServer = host.AddServiceEndpoint(typeof(POSServer.StockControl.IStockService), jsonBind, "json");

jsonServer.Behaviors.Add(new WebHttpBehavior
{
    DefaultBodyStyle = System.ServiceModel.Web.WebMessageBodyStyle.Bare,
    HelpEnabled = true,
    DefaultOutgoingResponseFormat = WebMessageFormat.Json
});

Finally in my SubmitResults function in my Service implementation

public bool SubmitResults(Business.StockResultData theData)
{
    DateTime uploadTime = DateTime.Now;
    int index = OperationContext.Current.IncomingMessageHeaders.FindHeader("Device-Token", "");
    this.WriteHeaders(OperationContext.Current.IncomingMessageHeaders);
    this.WriteHeaders(OperationContext.Current.RequestContext.RequestMessage.Headers);

but index is always -1 (not found) and the WriteHeaders cannot see the header.

If your service is only operating over HTTP and you're only using the json endpoint, you might want to look into the Web API (asp.net/web-api). It will make your life much easier. — Bennor McCarthy
– Bennor McCarthy, Commented Sep 25, 2012 at 0:33
i probably should add that i have other endpoints in use. It's just that I've only shown the JSON, also this is running inside a Service. No IIS etc involved. — Paul Farry
– Paul Farry, Commented Sep 25, 2012 at 0:36
Thought something like that might be the case. Hopefully someone knows the answer! — Bennor McCarthy
– Bennor McCarthy, Commented Sep 25, 2012 at 6:21

Paul Farry · Accepted Answer · 2012-09-25 01:24:08Z

3

After a lot of searching I believe I found the answer here . (http://social.msdn.microsoft.com/Forums/pl-PL/wcf/thread/72ee44cc-58bb-45b2-aff7-49d9bbc8176e)

HttpRequestMessageProperty reqMsg = 
          OperationContext.Current.IncomingMessageProperties["httpRequest"] as 
          HttpRequestMessageProperty;

answered Sep 25, 2012 at 1:24

Paul Farry

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Taran · Accepted Answer · 2016-09-10 23:30:57Z

0

This works for me...where apiKey is Header name

>  var headers =OperationContext.Current.IncomingMessageProperties["httpRequest"];
            var apiToken = ((HttpRequestMessageProperty)headers).Headers["apiKey"];

answered Sep 10, 2016 at 23:30

Taran

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