Get all paginated query results

Hi All,

I have a scenario that I am hoping someone here can help with…

I need to iterate through paginated results which I know is easily done when using a REST GET call. However in my case I have to use a REST POST call. Essentially I query records and get the xml response below.

    <control>
    <status>success</status>
    <senderid>profitbuilders</senderid>
    <controlid>1557344142</controlid>
    <uniqueid>false</uniqueid>
    <dtdversion>3.0</dtdversion>
</control>
<operation>
    <authentication>
        <status>success</status>
        <userid>ExtUser|profitbuilders|xml_gateway</userid>
        <companyid>profitbuilders-testing</companyid>
        <locationid></locationid>
        <sessiontimestamp>2019-05-08T12:36:35-07:00</sessiontimestamp>
    </authentication>
    <result>
        <status>success</status>
        <function>readByQuery</function>
        <controlid>dee09739-d797-4736-a739-4315952e777a</controlid>
        <data listtype="apbill" count="10" totalcount="171" numremaining="**161**" resultId="**7765623336XNMvwwTuKPplbSqLP3LCtgAAAAY4**">
            <apbill>
                <RECORDNO>140</RECORDNO>
            </apbill>
            <apbill>
                <RECORDNO>195</RECORDNO>
            </apbill>
            <apbill>
                <RECORDNO>200</RECORDNO>
            </apbill>
            <apbill>
                <RECORDNO>25</RECORDNO>
            </apbill>
            <apbill>
                <RECORDNO>152</RECORDNO>
            </apbill>
            <apbill>
                <RECORDNO>175</RECORDNO>
            </apbill>
            <apbill>
                <RECORDNO>213</RECORDNO>
            </apbill>
            <apbill>
                <RECORDNO>4</RECORDNO>
            </apbill>
            <apbill>
                <RECORDNO>205</RECORDNO>
            </apbill>
            <apbill>
                <RECORDNO>62</RECORDNO>
            </apbill>
        </data>
    </result>
</operation>

I then have to make another similar POST call shown below that references the result id highlighted above like this.

<readMore>
   <resultId>7765623332WU1hh8CoA4QAAHxI9i8AAAAA5</resultId>
</readMore>

I have to repeat this POST call until num remaining = 0

Again this would be very easy if the referenced API used a standard GET call instead of having to use POST.

Any thoughts or help is much appreciated.

I saw a similar post, where someone suggested having a child pipeline that does the POST, which is invoked via triggered task from a parent pipeline doing a GET, where the child responds with info back to the parent’s GET that can be used for pagination. That was the jist of it, but can probably search around to find the original thread about it.