soap-node-decoder/decodeSoapNode.js

A simple package to get the content of a SOAP response node.

const xml2js = require('xml2js');

const SOAP = {
    ENVELOPE: 'soap:Envelope',
    BODY: 'soap:Body',
    ENVELOPE_ENV: 'SOAP-ENV:Envelope',
    BODY_ENV: 'SOAP-ENV:Body'
}

const decodeSoapNode = (node, soap) => {
    if(node == undefined){
        console.log('Node parameter is undefined or null');
        return null;
    }

    if(soap == undefined){
        console.log('Soap parameter is undefined or null');
        return null;
    }

    const parser = new xml2js.Parser();
    let nodeValue = null;
    let soapEnvelope = SOAP.ENVELOPE;
    let soapBody = SOAP.BODY;

    parser.parseString(soap, (err, result) => {  
        if(err){
            console.log(err);
            return null;
        }

        /*
        * If the soap response is not in a standard format (soap:Envelope, soap:Body)
        * the soap envelope and body will be different (SOAP-ENV:Envelope, SOAP-ENV:Body)
        * and we need to change the values of the variables
        * soapEnvelope and soapBody
        */
        if(result['soap:Envelope'] == undefined){ 
            soapEnvelope = SOAP.ENVELOPE_ENV;
            soapBody = SOAP.BODY_ENV;
        }

    
        /**
         * Loop through the soap response and find the node
         * that we want to decode and return the value. 
         * If the node is not found, return null.
         */
        for(let key in result[soapEnvelope][soapBody][0]){
            //console.log(key);
            let keyWithoutBeginning = key.split(':')[1];
            if(keyWithoutBeginning == node){
                nodeValue = result[soapEnvelope][soapBody][0][key][0];
                //console.log(nodeValue);
                return;
            }
            else{
                for(let key2 in result[soapEnvelope][soapBody][0][key][0]){
                    let key2WithoutBeginning = key2.split(':')[1];
                    if(key2WithoutBeginning == node){
                        nodeValue = result[soapEnvelope][soapBody][0][key][0][key2][0];
                        //console.log(nodeValue);
                        return;
                    }
                }
               
            }
        }
        console.log(node + ' : No value found');
        return null;
    });
    return nodeValue;
}

module.exports = decodeSoapNode;