send Json data to external WebService from AX2009

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How can I realize to send JSON data to an external Webservice from AX2009?

I think I have to create an external C# tool where I put my data (URL, Login Data and Data to post) in and than send the stuff from there. Am I right?

How can I easily realize this and how can I handle this inside AX?

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Brandon Wiese 17,790 on at

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Sending a request and obtaining a response from X++ is pretty straightforward with the System.Net.HttpWebRequest. I have some sample code from AX 4 that unfortunately I do not have handy at the moment, but it's not appreciably different from how you would do it in VB.net. Lots of examples out there.

You could further make working with JSON a little easier with a .net library, like Newtonsoft's JSON.net, adding it to References in the AOT.

No, you do not have to write anything in C# outside of AX. You can definitely call an external web services directly from X++ in AX 4, 2009, and 2012.

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Mea_ 60,286 on at

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Hi ChrisR75,

You can build c shrap library or use existing one and then use it in AX. It's quite simple, all you need is to add reference under references node in AOT. This topic is covered on msdn msdn.microsoft.com/.../cc598160(v=ax.50).aspx

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Hi, basically I tried it inside AX with System.Net.HttpWebRequest but it does not work. It crashes with a marshall error (unsupported type) and many more thing.

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Brandon Wiese 17,790 on at

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Is this the problem you're having?

blogs.msdn.microsoft.com/.../how-to-cast-between-webrequest-and-httpwebrequest

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I am absolutely not sure because I played around that lot and I lost the overview

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Brandon Wiese 17,790 on at

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There are plenty of good examples online for using HttpWebRequest in 2009. In your case, JSON rendered to string becomes the body of the POST instead of the typical XML, but that shouldn't cause you any grief if you're good with JSON.

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actually I thought I have a proper example found and used to implement

System.Net.HttpWebRequest request; System.Net.HttpWebResponse response; System.Byte[] byteArray; System.IO.Stream dataStream; System.IO.StreamReader streamReader; //System.Net.ServicePoint servicePoint; //System.Net.ServicePointManager servicePointManager; System.Net.NetworkCredential credentials; System.Net.WebHeaderCollection headers; CLRObject clrObj; System.Text.Encoding utf8; str headerString; str returnValue; SENParameters parameters = SENParameters::find(); headerString = strfmt("Basic %1:%2", parameters.RTMUser, parameters.RTMPassword); headers = new System.Net.WebHeaderCollection(); headers.Add("Authorization", headerString); credentials = new System.Net.NetworkCredential(parameters.RTMUser, parameters.RTMPassword); // HttpWebResponse resp = req.GetResponse() as HttpWebResponse; System.Net.ServicePointManager::set_Expect100Continue(false); clrObj = System.Net.WebRequest::Create(parameters.RTMServiceUrl); request = clrObj; request.set_Method('POST'); request.set_Timeout(90000); request.set_Headers(headers); request.set_Credentials(credentials); utf8 = System.Text.Encoding::get_UTF8(); byteArray = utf8.GetBytes(jsonData); request.set_ContentType(@"application/x-www-form-urlencoded"); request.set_ContentLength(byteArray.get_Length()); dataStream = request.GetRequestStream(); dataStream.Write(byteArray, 0, byteArray.get_Length()); dataStream.Close(); try { response = request.GetResponse(); } catch (Exception::CLRError) { jsonData = ""; } dataStream = response.GetResponseStream(); streamReader = new System.IO.StreamReader(dataStream); returnValue = streamReader.ReadToEnd();

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Brandon Wiese 17,790 on at

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That looks like an AX 2012 example. I'm pretty sure you can't use an array type in AX 2009, i.e. System.Byte[]. You definitely couldn't in AX 4. That would generate an unsupported type error.

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Brandon Wiese 17,790 on at

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Maybe you could. 2009 was a long time ago all things considered. I see examples of people doing it after all.

Which line gives you the unsupported type error?

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dataStream = request.GetRequestStream();

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