Add S3 bucket management and file upload/download features

[faizakram]

Overview

This pull request introduces new features for managing AWS S3 buckets and enhances the application's file handling capabilities.

Key Features

1. File Upload to S3:

   • Adds functionality to upload files to an S3 bucket with the option to make the file publicly accessible.
   • Supports uploading files using a REST endpoint that accepts multipart file uploads.
   • Includes error handling and logging for successful and failed uploads.

2. File Download from S3:

   • Implements functionality to download files from an S3 bucket as a stream.
   • Provides a REST endpoint to facilitate file downloads by key.
   • Ensures efficient memory usage by streaming the file directly to the client.

3. S3 Bucket Management:

   • Implements functionality to create S3 buckets through a REST endpoint.
   • Adds a service class for bucket creation with error handling for conflicts and permissions.

4. List S3 Buckets with Regions:

   • Implements a new service method to fetch and display S3 bucket names with their respective regions.
   • Adds a REST endpoint to return the list of buckets along with their regions.
   • Utilizes the AWS SDK to retrieve bucket location constraints and map them to AWS regions.
   • Includes error handling for scenarios where the bucket region is not accessible or available.

Also provides S3 file management capabilities, including:

• Downloading all files from a specific bucket as a ZIP archive.
• Moving files from one S3 bucket to another.

Benefits

• Enhances the application's file management capabilities within AWS S3.
• Provides robust solutions for both uploading and downloading files.
• Improves bucket management by allowing creation and retrieval of buckets with their regions.

Testing

• Unit tests have been added for all new services and endpoints.
• Manual testing has been performed to verify file upload, download, bucket creation, and listing functionalities.

Checklist

• Code changes have been reviewed.
• All tests are passing.
• Documentation has been updated.
• No new dependencies are conflicting.

Additional Context

N/A

[faizakram]

3. S3 Bucket Management:
   • Implements functionality to create S3 buckets through a REST endpoint.
   • Adds a service class for bucket creation with error handling for conflicts and permissions.