Login with AuthenticationToken fails with "A21: A required argument was NULL"

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in ETA

Using ETA. After requesting Authentication Token from api.edp.thomsonreuters.com, sending login request with RDM_LOGIN_USER_AUTHN_TOKEN fails with following XML dump.

<!-- Outgoing Message (Channel IPC descriptor = 300) -->
<!-- Time: 17:09:09:247 -->
<!-- rwfMajorVer="14" rwfMinorVer="1" -->
<requestMsg domainType="RSSL_DMT_LOGIN" streamId="1" containerType="RSSL_DT_NO_DATA" flags="0x4 (RSSL_RQMF_STREAMING)" dataSize="0">
<key flags="0x26 (RSSL_MKF_HAS_NAME|RSSL_MKF_HAS_NAME_TYPE|RSSL_MKF_HAS_ATTRIB)" name="" nameType="5" attribContainerType="RSSL_DT_ELEMENT_LIST">
<attrib>
<elementList flags="0x8 (RSSL_ELF_HAS_STANDARD_DATA)">
<elementEntry name="AuthenticationToken" dataType="RSSL_DT_ASCII_STRING" data="eyJ0...dnFQ"/>
<elementEntry name="ApplicationId" dataType="RSSL_DT_ASCII_STRING" data=""/>
<elementEntry name="ApplicationName" dataType="RSSL_DT_ASCII_STRING" data="MyApp"/>
<elementEntry name="Position" dataType="RSSL_DT_ASCII_STRING" data="203.82.139.57/net"/>
<elementEntry name="Password" dataType="RSSL_DT_ASCII_STRING" data=""/>
<elementEntry name="ProvidePermissionProfile" dataType="RSSL_DT_UINT" data="1"/>
<elementEntry name="ProvidePermissionExpressions" dataType="RSSL_DT_UINT" data="1"/>
<elementEntry name="SingleOpen" dataType="RSSL_DT_UINT" data="1"/>
<elementEntry name="AllowSuspectData" dataType="RSSL_DT_UINT" data="1"/>
<elementEntry name="InstanceId" dataType="RSSL_DT_ASCII_STRING" data=""/>
<elementEntry name="Role" dataType="RSSL_DT_UINT" data="0"/>
<elementEntry name="DownloadConnectionConfig" dataType="RSSL_DT_UINT" data="0"/>
</elementList>
</attrib>
</key>
<dataBody>
</dataBody>
</requestMsg>
<!-- End Message (Channel IPC descriptor = 300) -->
<!-- Incoming Message (Channel IPC descriptor = 300) -->
<!-- Time: 17:09:09:965 -->
<!-- rwfMajorVer="14" rwfMinorVer="1" -->
<statusMsg domainType="RSSL_DMT_LOGIN" streamId="1" containerType="RSSL_DT_NO_DATA" flags="0x28 (RSSL_STMF_HAS_MSG_KEY|RSSL_STMF_HAS_STATE)" dataState="RSSL_DATA_SUSPECT" streamState="RSSL_STREAM_CLOSED" code="RSSL_SC_NOT_ENTITLED" text="A21: A required argument was NULL
" dataSize="0">
<key flags="0x6 (RSSL_MKF_HAS_NAME|RSSL_MKF_HAS_NAME_TYPE)" name="AQIC5wM2LY4SfcyEv7EctbMBiSrxg2neEMJtq5eZC59yK%2Bg%3D%40AAJTSQACNDAAAlNLABQtNTkxNzkxMTMxMjc0MzIxNTI2NwACUzEAAjM2%23" nameType="1"/>
<dataBody>
</dataBody>
</statusMsg>
<!-- End Message (Channel IPC descriptor = 300) -->
<!-- rsslCloseChannel Connection closed (Channel IPC descriptor = 300) -->
<!-- Time: 17:09:09:965 -->

When trying to login with expired token, error message is different and clearly indicates that token has expired.

What is missing argument here?

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Best Answer

  • moragodkrit.chumsri_1
    moragodkrit.chumsri_1 LSEG
    Answer ✓

    @Serge

    Basically the status message come from DACS and from the XML it looks like you did not set the ApplicationId in the request message. Please set it to a default value such as 256 and try again.

    <elementEntry name="ApplicationId" dataType="RSSL_DT_ASCII_STRING" data=""/>

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