If I understand correctly, you want to create 3600 short URLs with specific short codes like
short.link/ShortCode
right?
I would suggest doing the following :
Make a do get function that detects the parameter, say, shortCode.
Lookup the matching url from your source and return a simple html script that automatically redirects to the url.
Then, shorten your web app url with a url shortener service that passes arguments like tinyurl.
A similar process can be done with other services that doesn't support passing arguments from the shortened url to the original url with anchors ( i.e
https://example.com#Shortcode ), which requires a more client-based script. ( since doGet can't return the #Shortcode part.)
Hope this helps.