Parsing nested JSON to CSV - json

Question

I am trying to parse nested JSON to CSV, using XSLT transformation.
In this particular case each child object counting from "datasheet", e.g. "result-sheet" and "balance-sheet", should end up in one CSV file (output) each. Currently I am however just elaborating getting out "result-sheet" only.
I noticed that the content of arrays are getting merged togehter.
Data:
<data>
{
"datasheets": {
"result-sheet": {"bank": [1,3], "credit": [2,6]},
"balance-sheet": {"loans": [4,5], "inventory": [9,0]}
}
}
</data>
XSL:
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="3.0"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:map="http://www.w3.org/2005/xpath-functions/map"
xmlns:array="http://www.w3.org/2005/xpath-functions/array"
>
<xsl:output method="text" indent="yes"/>
<xsl:mode on-no-match="shallow-skip"/>
<!-- Parse JSON to XML -->
<xsl:template match="data">
<xsl:apply-templates select="json-to-xml(.)"/>
</xsl:template>
<xsl:template match="*">
<h2>Result sheet</h2>
<xsl:text>
</xsl:text>
<xsl:value-of select="*/(string-join(head(*)/*/#key, ','), *!string-join(*, ','))" separator="
"/>
</xsl:template>
</xsl:stylesheet>
Result:
Result sheet
bank,credit
13,26
45,90
Wanted result:
bank,credit
1, 2,
3, 6

Answer 1

I don't quite understand which data you want to have in each line, the following templates creates a line using for-each-pair on each pair of fn:number elements in the two fn:array children of the fn:map with the #key being result-sheet:
<xsl:template match="*:map[#key = 'result-sheet']">
<xsl:value-of select="for-each-pair(*:array[1]/*:number, *:array[2]/*:number, function($n1, $n2) { $n1 || ', ' || $n2 })"
separator="
"/>
</xsl:template>