Share files from a bucket with presign keys

Purpose

AWS presigned URLs (or presign keys) are used to grant temporary access to objects in Amazon S3 without requiring the recipient to have AWS security credentials. Here are the main purposes:

• Download Access: You can generate a presigned URL to allow someone to download an object from your S3 bucket without needing their own AWS credentials
• Upload Access: Similarly, you can create a presigned URL to permit someone to upload a specific object to your S3 bucket
• Time-Limited Access: The access provided by a presigned URL is time-limited, meaning it will expire after a specified duration

This is particularly useful for sharing files securely or allowing temporary uploads without exposing your AWS credentials.

Create a presign key with aws-cli