Invoke a MarkLogic JavaScript function as a particular user

invoke-asuser.sjs

'use strict';

/** Invokes any function as a specific user */
const asUser = (fn, user) =>
  xdmp.invokeFunction(fn, { userId: xdmp.user(user) });

/** The actual function that does the work. */
function _doStuff(param) {
  return `${param}: ${xdmp.getCurrentUser()}`;
}

/** A new synthetic function that combines the actual function and the user swithcing */
const doStuff = param =>
  asUser((/* zero params*/) => _doStuff(param), 'nobody');

/** Call `doStuff` just as you would `_doStuff` */
doStuff('User');