A IBM Datapower gateway script to convert XML to JSON

Datapower_GatewayScript_XML_to_JSON.js

/*
Gatewayscript file for IBM Datapower

This file converts XML to JSON using Datapowers builtin "json-xml-converter module" (Firmware 7.5.0 and Above)

Example Datapower flow using MPGW:

Client -> Convert Query Params to XML -> *this gatewayscript file* -> Parse Action (Object Reference set to JSON) -> Validate using JSON Schema -> Server

*Note: Output JSON is in "BadgerFish" Format*

Helpfull Links:
https://www.ibm.com/support/knowledgecenter/SS9H2Y_7.5.0/com.ibm.dp.doc/json-xml-converter_js.html#converter.toJSON
http://badgerfish.ning.com/

Created by Thomas Cope

*/
//------------------------------------

var converter = require('json-xml-converter');
var hm = require('header-metadata');

session.input.readAsXML(function (error, xml) {
    if (error) {
        session.reject("Document contains Invalid XML. Can not convert XML to JSON with Invalid XML.");
    }else{
        var xmlString = XML.stringify(xml);
        var xmlDOM = XML.parse(xmlString);
        console.debug("Converting XML to JSON");
        var json = converter.toJSON("badgerfish", xmlDOM)
        var headers = hm.current;
        headers.set('Content-Type', 'application/json');
        session.output.write(json);
    }
});