AWS pre-signed URLs are a powerful feature that allows temporary access to a specific S3 object without requiring AWS credentials. Here we will outline the secure implementation of pre-signed URLs, the associated risks, common use cases, and alternative solutions to consider.
Use Cases
1. Temporary Access to Files: Pre-signed URLs can be used to provide temporary access to files, such as images, videos, or documents, without exposing them to the public.
2. Third-Party Access: They enable third-party users to upload or download files without needing to manage AWS IAM (Identity and Access Management) credentials.
3. Streamlined User Experience: Pre-signed URLs can be used to create a seamless user experience by allowing direct uploads and downloads without intermediate servers.
Implementation
Step 1: Configure IAM Permissions
Ensure that the IAM user or role generating the pre-signed URL has the necessary permissions for the S3 object.
Step 2: Generate the Pre-Signed URL
Utilize the AWS SDK to create a pre-signed URL with a specific expiration time.
Step 3: Secure the URL
