Steps I have completed.
1.) Downloaded Story Map Journal
2.) Downloaded Resource Proxy Code
3.) Hosted Resource code as DotNet
A.) Read the Readme file. I resolved my problem through hosting the DotNet within the wwwroot folder and converted into an application.
4.) Modified the config.js and proxy.config files
A.) I modified the config.js and proxy.config files
Question:
In the Config.js file, Does to urlPrefix need to point to arcGIS Online?
It would need to point to https://www.arcgis.com/ or https://AGOL_Organization.maps.arcgis.com if you have an organizational account.
In the proxy.config file, Does the serverUrl need to point to https://AGOL_Organization.maps.arcgis.com?
It would need to point to https://AGOL_Organization.maps.arcgis.com Or to https://www.arcgis.com/
Also in the proxy.config file, Do I need additional code and Is this the correct code for oauth2Endpoint?
You do not need to use the oauth2Endpoint since it is token based.
Do I need to customize other code?
You do not need to customize any other code.