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BC Webservice calling from AL

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Posted on by Narendra Reddy

Hei,

I am having following code in converting C/AL to AL. This is giving me 401 unauthorized error.

Content.WriteFrom(RequestText);

WebRequest.SetRequestUri('http://localhost:7047/BC130/WS/CRONUS%20Norge%20AS/Codeunit/GetReservation');

WebRequest.Method('POST');

WebRequest.GetHeaders(RequestHeaders);

RequestText := strsubstNo('%1:%2', 'username', 'password');

TempBlob.WriteAsText(RequestText, TextEncoding::Windows);

RequestHeaders.Add('Authorization', StrSubstNo('Basic %1', TempBlob.ToBase64String()));

RequestHeaders.Add('SOAPAction', 'GetReservation:GetReservation');

RequestHeaders.Add('UseDefaultCredentials', 'TRUE');

RequestHeaders.Add('Keep-alive', 'TRUE');

Content.GetHeaders(ContentHeaders);

ContentHeaders.Remove('Content-Type');

ContentHeaders.Add('Content-Type', 'application/xml; charset=utf-8');

WebRequest.Content(Content);

WebClient.send(WebRequest, WebResponse);

The same was working in NAV development with dotnet types. but cannot able to make it work in AL. Please guide me, Thanks.

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Stefano Demiliani 37,166 Most Valuable Professional on at

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Are you using the correct password? You need to use the generated web service access key.

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Narendra Reddy 10 on at

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Hei, we are using correct credentials. If we develop in C/AL with dotnet variables it is working. But we wanted to have the solution in extension.

I don't know how to use web service access key to the above. Please suggest, so we can try it as well.

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Stefano Demiliani 37,166 Most Valuable Professional on at

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In D365BC, go to Users, select your user and in the Web Service Access section click on Web Service Access Key in order to create the key.

Then, in your AL code use your username (without domain) and the web service access key as password.

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Narendra Reddy 10 on at

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Thanks. But didn't work out.

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MohitMalik8085 100 on at

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Hi Reddy,

I think you can try with changing the WebRequest.SetRequestUri ... remove the localhost and use the IP address of the server as (192.168.0.0), it might be work incase of web service.

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Narendra Reddy 10 on at

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Thanks for your responses.

It is not working in my PC, which is not in any domain and the Credential Type is windows.

But it is working with Docker/azure installation (where the Credential Type is NavUserPassword).

My working code is:

XmlDoc.WriteTo(RequestText);

Content.WriteFrom(RequestText);

Content.GetHeaders(ContentHeaders);

ContentHeaders.Remove('Content-Type');

ContentHeaders.Add('Content-Type', 'application/xml; charset=utf-8');

WebRequest.Content := Content;

WebRequest.GetHeaders(RequestHeaders);

WebRequest.SetRequestUri(URL);

WebRequest.Method('POST');

RequestText := strsubstNo('%1:%2', UserIDTxt, PasswordTxt);

TempBlob.WriteAsText(RequestText, TextEncoding::Windows);

RequestHeaders.Add('Authorization', StrSubstNo('Basic %1', TempBlob.ToBase64String()));

RequestHeaders.Add('Connection', 'keep-alive');

RequestHeaders.Add('SOAPAction', MySoapAction);

WebClient.Timeout := 30000;

WebClient.send(WebRequest, WebResponse);

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I Gusti Made Ari 3,600 on at

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For Windows Credential you need to use NTLM Authentication method in your request header and also you need to make sure "ServicesUseNTLMAuthentication" has been enabled on your BC On-Premise service.

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Narendra Reddy 10 on at

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Service is setup for NTLM Authentication. How can I add method in request header?

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I Gusti Made Ari 3,600 on at

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using AL Httpclient , they mentioned in developer preview 2018 it is supporting ntlm authentication and will be shipped in next release. I haven't checked yet whether it is now inside spring 2019 release.

community.dynamics.com/.../developer-preview-december-2018

Using .net httpweb request you might need to try UseDefaultCredential method

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Narendra Reddy 10 on at

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Thanks. I am using run time 2.3. This is only available from 3.0. Hope this is the issue with my scenario.

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