index.js

• the entry point for node
• the express server

public folder

• where our front-end will live
• index.html
• scripts.js

indexRouter

• where our express routes will live

config.js

• this will have our AWS/S3 cred

getS3PutLink

• this will generate our link for the front end, in the backend

getS3SignedLink

• this will give public access to the file for x time