InsertXML

The InsertXML converter inserts a value into an XML document at a specified XPath location.

Syntax: InsertXML(xml_string, xpath, value)

• xml_string: the bracket notation location of the XML string field
• xpath: the XPath location to insert the new value
• value: the value to insert

Input

{
	"_type": "log",
	"body": "<log><message>SYSTEM</message></log>",
	"resource": {...},
	"timestamp": 1733886431434
}

Statement

set(cache["body"], Decode(body, "utf-8"))
set(attributes["inserted_xml"], InsertXML(cache["body"], "/log", "<level>info</level>"))

See Working with the body and Working with a cache for more information.

Output

{
	"_type": "log",
	"attributes": {
		"inserted_xml": "<log><message>SYSTEM</message><level>info</level></log>"
	},
	"body": "<log><message>SYSTEM</message></log>",
	"resource": {...},
	"timestamp": 1733886447480
}

The XML data initially stored as a byte array in the body field was first decoded into a UTF-8 string format using the Decode function and temporarily stored in a cache for manipulation. This decoded XML string was then modified by inserting a new element <level>info</level> at the specified XPath location /log using the InsertXML function. The modified XML, now containing the newly added element, was stored under the attributes field as inserted_xml.