Custom library module to extract credentials saved in company preference.

lib_get_preferences.js

/**
 * @NApiVersion 2.x
 */
define([
    'N/runtime', 'N/config'
], function (runtime, config) {

    /**
     * Load the COMPANY_PREFERENCES record and return fields from it. The fields are returned as an object.
     * @return {function} This function returns a function. You must call 
     *   the returned function to get the account preferences object.
     */
    function getPreferences () {
        // Returning an inner function here to outfox NetSuite's SuiteScript validation
        return function _getPreferences() {
            const configRec = config.load({
                type: config.Type.COMPANY_PREFERENCES
            });

            const PREFERENCES = {
                BLACK_FOREST_STORE_ID: configRec.getValue('custscript_black_forest_store_id'),
                BLACK_FOREST_STORE_AUTH_TOKEN: configRec.getValue('custscript_black_forest_store_auth_token'),
                MINIMUM_COST_FOR_FREE_SHIPPING: configRec.getValue('custscript_min_amt_free_ship'),
                SPECIAL_ORDER_FEE: configRec.getValue('custscript_ord_hand_fee')
            }

            return PREFERENCES
        }
    }

    return {
        getPreferences: getPreferences
    };
});