gistfile1.txt

var body = {"soap:envelope":{"$":{"xmlns:soap":"http://www.w3.org/2003/05/soap-envelope","xmlns:loc":"http://www.globe.com/warcraft/wsdl/locationmgt/"},"soap:header":[""],"soap:body":[{"loc:getlocationbymsisdn":[{"_":"Optional: Optional: Optional: Optional: Optional: Optional:","csp_txid":["127917398719237"],"cp_id":["10"],"cp_userid":["123"],"cp_password":["akshdkahdk"],"serviceid":["12312313"],"productid":["1243143"],"msisdn":["091234567891"]}]}]}}

const {
        "soap:envelope": {
            "soap:body": [{
                "loc:getlocationbymsisdn": [{
                    "csp_txid": [txid],
                    "cp_id": [cpid],
                    "cp_userid": [cpuserid],
                    "cp_password": [cppassword],
                    "serviceid": [serviceid],
                    "productid": [productid],
                    "msisdn": [msisdn]
                }]
            }]
        }
    } = body;

console.log(cpid);