Overview

Use a an 

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Basic Settings

Field	Description	Example Value
Name	Name given to the XML Node. This will be displayed on the actionflow canvas.	MyXMLReader
Input Expression	The input expression provides the source of the XML data to be operated upon. Typically, this will be a simple expression pointing at an incoming attribute, such as, the body from a HTTP Node.	// Consists of the pipe name and the name of a mapped attribute in.body
XPath	The XPath expression is evaluated against the XML document provided by the Input Expression and returns a list of XML elements. It determines which elements are extracted from the JSONXML. Note that the XPath determines the number of elements that are processed, which directly correlates to the number of records returned by the XML Node. For example, if the path returns the route element of the XML Document only one record will be returned. Whereas a path that returns children nodes will return one record for each child element.	// XML XPath /root/main/title

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name XPathSyntax
XPath Syntax Expression  Description $  symbol refers to the root element. @ symbol refers to the current element. .  is the dot-child operator, which is used to denote a child element of the current element. [ ]  is used to select a child element of the current element (by name or index number). * a wildcard, returning all elements regardless of their name. ^ symbol is used to traverse up 1 element in the hierarchy from child to parent.  A worked example is provided at the end of this page.

Output Attributes

Contains a list of attributes returned by the node. In this node XML is converted into data objects that can be used by PhixFlow, this information is accessed using the syntax _result.AttributeName in an output attribute. To add an output attribute click the 

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Worked Example

<root xmlns:h="http://example.com/schema"> 
	<main page="PF Main Page"> 
		<h:title name="PF Title">PF Title Text">
			<h:datarow> 
				<h:data h:initials="AA">Alistair Andrews<data>
				<h:data h:initials="BB">Bert Brown</data> 
			</h:datarow> 
		</h:title> 
	</main> 
</root>

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Input Connection Points

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Output Connection Points

This section has a toolbar with standard buttons. The grid contains a list of all output connection points.

Output Attributes

JSON is converted into data objects that can be used by PhixFlow, this information is accessed using the syntax, _result.AttributeName.

Worked Example

Below is an example JSON object passed to the JSON Node:

// Example JSON string.
{
    "main_page": {
        "page": "PF Main Page",
        "title": {
            "name": "PF Title Text",
            "data": [
                {"initials": "AA", "value" : "Alistair Andrews"},
                {"initials": "BB", "value" : "Bert Brown"}
            ]
        }
    }
}

This path will bring back all elements matching the JSON path including the parent/grandparents and all child elements. The path defines the starting point from which we reference the JSON nodes.

The following examples show how to reference the returned JSON data:

1. _result.name, returns PF Title Text
2. _result.^.page, returns PF Main Page
   1. The ^ traverses up the JSON hierarchy. 
3. listToString(_result.data.initials), returns "AA, BB"
   
   1. Because there are multiple JSON nodes under  _result.data.initials, an array of data is returned. See Array Handling Functions.