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POWhat is the correct URI for sending parameters via POST in WCF REST Services?
 

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  1. POWhat is the correct URI for sending parameters via POST in WCF REST Services?
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    <p>Let's say that I have specified the following WCF REST Service at the address "<a href="http://localhost/MyRESTService/MyRESTService.svc" rel="nofollow noreferrer">http://localhost/MyRESTService/MyRESTService.svc</a>"</p> <pre><code>[ServiceContract] public interface IMyRESTService { [OperationContract] [WebInvoke( Method = "POST", UriTemplate = "/receive")] string Receive(string text); </code></pre> <p>Now I can call my REST service in Fiddler using the address "<a href="http://localhost/MyRESTService/MyRESTService.svc/receive" rel="nofollow noreferrer">http://localhost/MyRESTService/MyRESTService.svc/receive</a>" and it works (I'll get a return value).</p> <p>But what if I want to send parameters to my REST Service? Should I change my interface definition to look like this:</p> <pre><code>[ServiceContract] public interface IMyRESTService { [OperationContract] [WebInvoke( Method = "POST", UriTemplate = "/receive/{text}")] string Receive(string text); </code></pre> <p>Now if I'll call the REST Service in Fiddler using the address "<a href="http://localhost/MyRESTService/MyRESTService.svc/receive/mytext" rel="nofollow noreferrer">http://localhost/MyRESTService/MyRESTService.svc/receive/mytext</a>" it works (it sends the parameter "mytext" and I'll get a return value). So is this the correct URI for sending parameters via POST?</p> <p><strong>What confuses me is that I don't know how to use this URI exactly in code at the same time when I'm sending parameters</strong>. I have this following code which is almost complete for sending POST data to a WCF REST Service but I'm in stuck with how to take parameters into account with URI. </p> <pre><code>Dictionary&lt;string, string&gt; postDataDictionary = new Dictionary&lt;string, string&gt;(); postDataDictionary.Add("text", "mytext"); string postData = ""; foreach (KeyValuePair&lt;string, string&gt; kvp in postDataDictionary) { postData += string.Format("{0}={1}&amp;", HttpUtility.UrlEncode(kvp.Key), HttpUtility.UrlEncode(kvp.Value)); } postData = postData.Remove(postData.Length - 1); Uri uri = new Uri("http://localhost/MyRESTService/MyRESTService.svc/receive"); HttpWebRequest req = (HttpWebRequest)WebRequest.Create(uri); req.Method = "POST"; byte[] postArray = Encoding.UTF8.GetBytes(postData); req.ContentType = "application/x-www-form-urlencoded"; req.ContentLength = postArray.Length; Stream dataStream = req.GetRequestStream(); dataStream.Write(postArray, 0, postArray.Length); dataStream.Close(); HttpWebResponse response = (HttpWebResponse)req.GetResponse(); Stream responseStream = response.GetResponseStream(); StreamReader reader = new StreamReader(responseStream); string responseString = reader.ReadToEnd(); reader.Close(); responseStream.Close(); response.Close(); </code></pre> <p>If I'll want to send parameters (e.g. "mytext") in code via POST should the URI code be either</p> <p>this</p> <pre><code>Uri uri = new Uri("http://localhost/MyRESTService/MyRESTService.svc/receive"); </code></pre> <p>or this (this works but it doesn't make any sense since parameters should be added other way and not directly to the URI address)</p> <pre><code>Uri uri = new Uri("http://localhost/MyRESTService/MyRESTService.svc/receive/mytext"); </code></pre> <p>I'm glad if you can help me, it can't be so difficult with WCF REST Services. </p>
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