method: 'POST': The Webex XML API requires HTTP POST requests because the instructions are encapsulated within an XML payload in the request body.

java:com.webex.service.binding.ep.LstRecording: The code creates a bodyContent element to request a list of recordings. The standard Webex XML API binding for "List Recording" is LstRecording. This operation is typically defined within the ep (Enterprise/Endpoint) service schema in the Java binding format.

https://api.webex.com/WBXService/XMLService: This is the correct endpoint URL for the Webex XML API. The other URL option (.../v1/recordings) belongs to the REST API, which uses JSON and a different authentication method, making it incompatible with this XML-based code.

http://www.webex.com/schemas/2002/06/service/ep: The getElementsByTagNameNS method requires the XML namespace URI of the tag being searched. The fileURL tag in a LstRecording response is part of the ep namespace (e.g., <ep:fileURL>), which corresponds to this specific URI.

Cisco DevNet (Official Documentation): Webex XML API Reference Guide - LstRecording. Defines the LstRecording request structure and confirms the response elements (like fileURL) are returned within the ep namespace.

Cisco DevNet (Official Documentation): XML Request and Response Documents. States that "XML documents are sent via HTTPS POST to https://api.webex.com/WBXService/XMLService".

MDN Web Docs: Element.getElementsByTagNameNS(). Confirms that the first argument must be the namespace URI (string) of the elements to match.