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executeXpath

Table of Contents

Overview

The executeXpath() function takes XML/JSON formatted text and XPath as arguments, and returns the values of the desired node from the text.

Return Type

  • TEXT

Syntax

<variable> = <xml/json>.executeXPath(<xpath>);
ParameterData typeDescription
<variable>TEXTVariable which will contain the returned response.
<xml/json>TEXT

The XML/JSON formatted text from which the values of the selected node will be returned.

Note: When using a json object, we have to add an additional '/root' node in the script, and the return value is embedded within tags represented by the specified key. This is illustrated in the examples section on this page.
<xpath>TEXT

The path to select the required nodes in the XML/JSON formatted text.

An invalid Xpath will return a runtime error.

Example 1: Use XPath to fetch value from XML file

xmlResp = invokeurl  
[  
url : "https://www.w3schools.com/xml/cd_catalog.xml"  
type : GET  
] ;  
info xmlResp.executexpath("/CATALOG/CD/TITLE");   

Example 2: Use XPath to fetch value from JSON file

jsonResp = invokeurl  
[  
url : "https://tools.learningcontainer.com/sample-json.json"  
type : GET  
] ;  
info jsonResp.executexpath("/root/address/city");  
// returns <city>Surat</city>

Example 3: Use XPath to fetch attribute value

text = "<a href=\"https://eg4.nic.in/jnv/DFILES/EBOOKS/IR/HarryPotter.pdf\" target=\"_blank\">Harry Potter</a>";  
info text.executeXPath("/a/@href").executeXpath("/href/text()");  
// returns https://eg4.nic.in/jnv/DFILES/EBOOKS/IR/HarryPotter.pdf 

Example 4: Use XPath to fetch specific node

xmlString = "<bookstore><book category=\"COOKING\"><title lang=\"en\">Everyday Italian</title><author>Giada De Laurentiis</author><year>2005</year><price>30.00</price></book><book category=\"CHILDREN\"><title lang=\"en\">Harry Potter</title><author>J K. Rowling</author><year>2005</year><price>29.99</price></book><book category=\"WEB\"><title lang=\"en\">Learning XML</title><author>Erik T. Ray</author><year>2003</year><price>39.95</price></book></bookstore>";  
info xmlString.executeXPath("/bookstore/book[3]").executeXPath("/book/title/text()");  
//Returns the value within the <title> tag of the 3rd node  
// returns Learning XML

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