24Ours ia a free file-sharing web application that deletes all files every day at midnight EST. Users can upload files of any type and will recieve a sharable link that will work for exactly 24 hours or until that day at midnight.
The UI for 24Ours was created using React and Bootstrap and is hosted on Heroku. The client sends POST requests using axios to a Node.js server (Express.js), which then makes calls to our Lambda functions through a custom REST API on API Gateway. Our Lambda functions (Python 3) then upload files to an S3 bucket and send back a presigned URL to that file, which can be accessed by anyone with that link. Lastly, at 12 am EST daily, an EventBridge rule calls a Lambda function that wipes all the files in the S3 bucket.