convert XML attribute to json - json

Question

As a simplified example, consider this table with two fields. One is a string and the other is XML.
SELECT TOP (1) [Source]
, OrderParameter
FROM [Rops].[dbo].[PreOrder]
Source="MediaConversions"
OrderParameter="<?xml version="1.0" encoding="utf-16"?>"
Now I want to query the table and have the results as json, but also have the XML converted as json in one go.
SELECT TOP (1) [Source]
, OrderParameter
FROM [Rops].[dbo].[PreOrder]
for json path;
results in
[{"Source":"MediaConversions","OrderParameter":"<ParameterList
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema" />"}]
But I want it to be converted into:
[{"Source":"MediaConversions","OrderParameter":{ "ParameterList": [
"x": 1, "y": 10] }
]
How to add "for json" to have the xml converted?
SELECT TOP (1) [Source]
, select OrderParameter for json path????
FROM [Rops].[dbo].[PreOrder]
for json path;

Answer 1

It looks like you want to pull out the inner text of the ParameterList node inside the XML. You can use .value and XQuery for this:
SELECT TOP (1) [Source]
, OrderParameter = (
SELECT
x = x.PL.value('(x/text())[1]','int'),
y = x.PL.value('(y/text())[1]','int')
FROM (VALUES( CAST(OrderParameter AS xml) )) v(OrderParameter)
CROSS APPLY v.OrderParameter.nodes('ParameterList') x(PL)
FOR JSON PATH, ROOT('ParameterList')
)
FROM [Rops].[dbo].[PreOrder]
FOR JSON PATH;