AWS S3 Cloud Tools

A collection of AWS S3 utilities developed using C# and .NET.

This repository contains multiple AWS S3-based applications demonstrating cloud storage operations using AWS SDK for .NET.

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Projects Included

1. AWS S3 File Downloader

A console application that:

• Downloads files from an AWS S3 bucket
• Checks whether the file exists
• Handles exceptions and invalid file requests

Features

• Secure AWS SDK integration
• File existence validation
• Error handling
• Simple console-based interface

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2. AWS S3 File Listing

A console application that:

• Connects to AWS S3
• Retrieves and displays all files from an S3 bucket

Features

• Displays bucket contents
• AWS SDK integration
• IAM-based secure access
• Exception handling

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3. AWS S3 Image Uploader

A console application that:

• Uploads images to AWS S3
• Generates unique file names using UUID
• Generates public URLs for uploaded images

Features

• Public image URL generation
• Unique filename generation
• Image validation
• Error handling

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Technologies Used

• C#
• .NET 8
• AWS SDK for .NET
• Amazon S3
• AWS CLI

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Project Structure

AwsS3Downloader/
AwsS3FileListing/
AwsS3ImageUploader/

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Prerequisites

• .NET SDK 8.0+
• AWS CLI
• AWS Account
• S3 Bucket

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Install AWS CLI

Download: https://aws.amazon.com/cli/

Verify:

aws --version

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Configure AWS Credentials

Run:

aws configure

Enter:

• AWS Access Key ID
• AWS Secret Access Key
• Region
• Output Format

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Install Dependencies

Run inside each project folder:

dotnet restore

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Run Applications

File Downloader

dotnet run

File Listing

dotnet run

Image Uploader

dotnet run

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AWS IAM Permissions

Downloader Permissions

{
  "Effect": "Allow",
  "Action": [
    "s3:GetObject",
    "s3:HeadObject"
  ],
  "Resource": "arn:aws:s3:::your-bucket-name/*"
}

File Listing Permissions

{
  "Effect": "Allow",
  "Action": [
    "s3:ListBucket"
  ],
  "Resource": "arn:aws:s3:::your-bucket-name"
}

Image Upload Permissions

{
  "Effect": "Allow",
  "Action": [
    "s3:PutObject",
    "s3:GetObject"
  ],
  "Resource": "arn:aws:s3:::your-bucket-name/*"
}

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Features

• AWS S3 Integration
• Secure Cloud Storage Operations
• Public URL Generation
• Exception Handling
• UUID-based File Naming
• Beginner-Friendly DevOps Projects

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Future Improvements

• GUI Interface
• ASP.NET Web Version
• Multi-file Upload Support
• Authentication Layer
• Logging & Monitoring

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Author

Giridhar Gopal