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    <h2>Specs for simple reference</h2> <p>I have always appreciated <a href="http://www.jmarshall.com/easy/http/" rel="nofollow">HTTP Made Really Easy</a> as a starting point. It's small, concise and friendly. </p> <p>Often you can get enough implementation details (or at least enough understanding) from this guide's simple style to suffice your need. It has worked for me many times. There is a section on <a href="http://www.jmarshall.com/easy/http/#postmethod" rel="nofollow">POST</a>. The guide builds cumulatively. </p> <p>Additionally it links to proper specifications and fuller resources should you need to reference them and get into more detail.</p> <h2>.NET Supporting Classes</h2> <p>Fortunately the .NET Framework Class Library contains higher level classes that can simplify your life. Look into the MSDN documentation and examples about <a href="http://msdn.microsoft.com/en-us/library/system.net.webclient.aspx" rel="nofollow">System.Net.WebClient</a> (doesn't lend itself as well to POST, favours GET for quick usage methods). Consider the more flexible <a href="http://msdn.microsoft.com/en-us/library/system.web.httprequest.aspx" rel="nofollow">System.Web.HttpRequest</a> and <a href="http://msdn.microsoft.com/en-us/library/system.web.httpresponse.aspx" rel="nofollow">System.Web.HttpResponse</a> counterpart classes.</p> <h2>Example using C#</h2> <p>This code sample shows the concept of posting binary data to a stream. </p> <p>This method is called like:</p> <pre><code>PostMyData(Stream_instance, "http://url_to_post_to"); </code></pre> <p>Namespaces involved are:</p> <pre><code>using System.IO; using System.Net; </code></pre> <p>The custom method would look something like the following.<br> <strong>Note: Concept taken from <a href="http://msdn.microsoft.com/en-us/library/d4cek6cc.aspx" rel="nofollow">MSDN sample code here</a>.</strong></p> <p>Although I use MIME type <code>application/octet-stream</code> for generic binary data, you can use any well known type from <a href="http://en.wikipedia.org/wiki/Internet_media_type" rel="nofollow">this list of mime types</a> to target the kind of binary data you are sending.</p> <pre><code>public int PostMyData(Stream binaryData, string postToUrl) { // make http request var request = (HttpWebRequest)WebRequest.Create(postToUrl); request.Method = "POST"; request.ContentType = "application/octet-stream"; // binary data: // data (bytes) that will be posted in body of request var streamOut = request.GetRequestStream(); binaryData.CopyTo(streamOut); // post and get response using (var response = (HttpWebResponse)request.GetResponse()) { var code = response.StatusCode; return (int)code; } } </code></pre>
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    1. POWhat is a structure of a standard POST request
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    1. COThanx for your answer, but how do i add a Image in the POST data, i mean can i send the raw bytes or do i need to do somthing with it.
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    2. COI added an example.
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    3. COFor C# code to stuff an image into a System.IO.Stream instance for passing into this function's `binaryData` parameter see this answer: http://stackoverflow.com/questions/1668469/system-drawing-image-to-stream-c
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