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Dynamics 365 Community / Forums / Finance | Project Operations, Human Resources, ... / Error 422 in PUT metho...
Finance | Project Operations, Human Resources, ...
Answered

Error 422 in PUT method / System.Net.HttpWebResponse

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Posted on by Ireneusz Smaczny 1,535

I have in AX2012 method like this:

public void SendRequest()
{
CLRObject clrObj;
System.Net.HttpWebRequest webReq;
System.Net.ServicePoint servicePt;
System.Net.WebHeaderCollection headers;
System.Text.Encoding utf8Enc;
System.IO.Stream stream;
System.Byte[] bodyBytes;
System.Net.WebException ex;
System.Net.HttpWebResponse webExRes;
System.Net.HttpWebResponse webRes;
System.IO.StreamReader streamReader;
System.Net.HttpStatusCode HttpStatusCodeTmp;
System.IO.BinaryReader binaryReader;
System.Int32 countOfBytes;
System.Byte[] responseBinaryBytes;
System.IO.MemoryStream memStream;
str strAuth;
boolean debug = true;
boolean CommitRequest = true;
;
try
{
new InteropPermission(InteropKind::ClrInterop).assert();
clrObj = System.Net.WebRequest::Create(requestPath);
webReq = clrObj;
servicePt = webReq.get_ServicePoint();
servicePt.set_Expect100Continue(false);
webReq.set_Method(requestMethod);
webReq.set_KeepAlive(true);
webReq.set_AutomaticDecompression(System.Net.DecompressionMethods::GZip);
headers = new System.Net.WebHeaderCollection();
headers.Add("Auth", strAuth);
headers.Add("Timestamp", timestamp);
webReq.set_Headers(headers);
utf8enc = System.Text.Encoding::get_UTF8();
stream = webReq.GetRequestStream();
bodyBytes = utf8enc.GetBytes(requestBody);
stream.Write(bodyBytes, 0, bodyBytes.get_Length());
webReq.set_ContentType("application/json");
webReq.set_Accept("*/*");
try
{
webRes = webReq.GetResponse();

info(strfmt("I'm here after GetResponse"));
}
catch (Exception::CLRError)
{
error (strFmt("Exception::CLRError"0));
}
catch
{
error (strFmt("Otjer error"));
}
CodeAccessPermission::revertAssert();
}
catch(Exception::CLRError)
{
throw error(AifUtil::getClrErrorMessage());
}
info(strfmt("Method end"));
}


If I send POST - all is OK; (error code 201, 403) -)
If I send PUT and receive code 204 - all is OK
If I send PUT and receive code 422 (Unprocessable Entity (WebDAV) (RFC 4918)) AX stops and I don't see message "I'm here after GetResponse"

What is wrong ??? Why I can't use try..catch .. in error 422 ? AX breaks all code after webReq.GetResponse ! What can I do ?

  • Ireneusz Smaczny Profile Picture
    Ireneusz Smaczny 1,535 on at
    RE: Error 422 in PUT method / System.Net.HttpWebResponse

    Thank you, Martin!

    Yes, this code was in ttsbegin / ttscommit. After changing the code all is fine and I have proper respond in PUT method!

  • Verified answer
    Martin Dráb Profile Picture
    Martin Dráb 230,458 Most Valuable Professional on at
    RE: Error 422 in PUT method / System.Net.HttpWebResponse

    Isn't your code inside a transaction (ttsbegin / ttscommit)? You can't catch exceptions inside transactions, at least most of exception types.

  • Martin Dráb Profile Picture
    Martin Dráb 230,458 Most Valuable Professional on at
    RE: Error 422 in PUT method / System.Net.HttpWebResponse

    First of all, let me format your code to make it easier to read. Please use Insert > Insert Code (in the rich formatting view) to paste source code.

    I also removed many unused variables.

    public void sendRequest()
{
    CLRObject clrObj;
    System.Net.HttpWebRequest webReq;
    System.Net.ServicePoint servicePt;
    System.Net.WebHeaderCollection headers;
    System.Text.Encoding utf8Enc;
    System.IO.Stream stream;
    System.Byte[] bodyBytes;
    System.Net.HttpWebResponse webRes;
    str strAuth;
    
    try
    {
        new InteropPermission(InteropKind::ClrInterop).assert();
        clrObj = System.Net.WebRequest::Create(requestPath);
        webReq = clrObj;
        servicePt = webReq.get_ServicePoint();
        servicePt.set_Expect100Continue(false);
        webReq.set_Method(requestMethod);
        webReq.set_KeepAlive(true);
        webReq.set_AutomaticDecompression(System.Net.DecompressionMethods::GZip);
        headers = new System.Net.WebHeaderCollection();
        headers.Add("Auth", strAuth);
        headers.Add("Timestamp", timestamp);
        webReq.set_Headers(headers);
        utf8enc = System.Text.Encoding::get_UTF8();
        stream = webReq.GetRequestStream();
        bodyBytes = utf8enc.GetBytes(requestBody);
        stream.Write(bodyBytes, 0, bodyBytes.get_Length());
        webReq.set_ContentType("application/json");
        webReq.set_Accept("*/*");
        
        try
        {
            webRes = webReq.GetResponse();
            info(strfmt("I'm here after GetResponse"));
        }
        catch (Exception::CLRError)
        {
            error(strFmt("Exception::CLRError"));
        }
        catch
        {
            error("Other error");
        }
    }
    catch(Exception::CLRError)
    {
        throw error(AifUtil::getClrErrorMessage());
    }
    
    info(strFmt("Method end"));
}

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