SAP/node-rfc nodule: usage of table and variable parameters of SAP's BAPI

demo_BAPI_params1.js

//demo prg to showcase usage of table and variable parameters of SAP's BAPI while called from nodejs app via SAP/node-rfc nodule
"use strict";
var rfc = require('node-rfc');
var abapSystem = {
    user: 'sap_user',
    passwd: 'sap_user_pwd',
    ashost: 'sap.nodomain',
    sysnr: '01',
    client: '800'
};
var client = new rfc.Client(abapSystem);
var MAX_ROWS = 3;
var SELECTION_RANGE_str = {
		PARAMETER: "USERNAME",
		SIGN:      "I",
		OPTION:    "CP",
		LOW:       "A*"
	};	
var SELECTION_RANGE_tab = [SELECTION_RANGE_str];
	
client.connect(function(err) {
    if (err) {
        return console.error('could not connect to server', err);
    }	
    client.invoke('BAPI_USER_GETLIST', {
			MAX_ROWS: MAX_ROWS,
			SELECTION_RANGE: SELECTION_RANGE_tab
        },
        function(err, res) {
            if (err) {
                return console.error('Error invoking BAPI_USER_GETLIST:', err);
            }
		console.log('Result BAPI_USER_GETLIST:', res);
        });	
});