react-async-script | React composition mixin for loading 3rd party | Frontend Framework library

I'm trying to use express library in main.js file. It works fine on my dev build, but when I package the app I get

Error: Cannot find module 'express'

I'm not quite sure how electron main thread works, is it packaged separately by some other build tool, and do I need to define(include) package manually? My app is packaged by webpack, and I have included libraries in package.json. Every sample I have found just includes express library and moves on, I can't find any additional steps for this.

package.json

I am trying to wrap a react component that requires the google maps api, with a makeAsyncScriptLoader from react-async-script.

In the same file (if that makes a difference):

I recently upgraded to react 16.2.0 from react 15.6.2 Now my application doesnt work as expected and has lot of warnings for dependancies on react 15.6.2 So for me now its not possible to upgrade all other dependencies to 16.2.0. because of the time schedule. Hence I want to downgrade to react 15.6.2

I ran following commands to install react 15.6.2 again:

I've cloned my react project from a git repository and after running npm install to install my dependencies (and then install other missing global dependencies) I tried running it with npm run start only to get the following error : Module build failed: Error: Cannot find module './lib/api/node.js' and I can;t understand what is wrong with it.Can anyone help me out? I have to mention that I've used npm eject on this project Thanks in advance !

Here is my package.json :

I am having issues integrating the Paypal with my react app using sandbox. When I click on the Button, a pop-up of PayPal opens and when I put in my credentials to log in, I get the following error:

I am able to see the sign in form, but it just won't let me sign in and instead I come to see that message.

App.js

I am getting "google is undefined" at times when I load my component containing a map in my React project. The reason seems to be that the google api script is not loading in time when the internet connection is not good enough.

I am loading the maps api script in app.js like so.

I've updated my router to take in a second main route.

I am trying to figure out how to use

method to load api.js script file. Is there a way to wrap loading into a module?

thanks, forgive me if the question is dumb, total React noob here.

UPDATE:

I can't use npm , its disabled in my world. But I may be able to leverage this bit from the package.

I am using React 15.6.1 and trying to insert some Microdata into my text: