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One Interface To Rule Them All

FluentStorage, originally known as Storage.NET, is a field-tested polycloud .NET cloud storage library that helps you interface with multiple cloud providers from a single unified interface.

It provides a generic interface for Blob storage across all cloud storage providers (AWS S3, GCP, FTP, SFTP, Azure Blob/File/Event Hub/Data Lake) and cloud messaging providers (AWS SQS, Azure Queue/ServiceBus).

It is written entirely in C#. Supports .NET 5+ and .NET Standard 2.0+. External dependencies are only added by FluentStorage sub-packages.

FluentStorage is released under the permissive MIT License, so it can be used in both proprietary and free/open source applications.

Features

• Unified API to interface with all major cloud providers for Blobs and Messaging.

• Provides a generic interface regardless on which storage provider you are using.

• Provides both synchronous and asynchronous alternatives of all methods and implements it to the best effort possible.

• Supports all popular providers: AWS S3, AWS SQS, GCP Storage, FTP, FTPS, SFTP, Azure Blob & File Storage, Azure Queue Storage, Azure Service Bus, Azure Event Hub, Azure Data Lake Store, Azure Key Vault, DigitalOcean Spaces, MinIO, Wasabi.

• Supports providers using individual Nuget packages, with hassle-free configuration and zero learning path.

• Implements in-memory and on-disk versions of all the abstractions, therefore you can develop fast on a local machine or use vendor-free serverless implementations for parts of your application.

• Implements data transformation sinks for encryption and compression.

• Attempts to enforce idential behavior on all implementations of storage interfaces to the smallest details possible, and contains many test specifications which will help you to add another provider.

Architecture

Without FluentStorage

Today, most cloud applications and services are developed against vendor-specific APIs like Amazon S3 API or Azure Blob API for cloud storage capabilities.

Using multiple vendor-specific APIs can increase your vendor lock-in, and makes your application more complex and harder to maintain. And sometimes these APIs may not offer all the functionality you need for your application. Polycloud also becomes very hard to implement.

With FluentStorage

What if we had a single, consistent API to deal with all types of cloud storage? That would solve these issues and bring more flexibility in switching cloud providers or cloud services.

Thus was born the idea for FluentStorage.

You can use a single, consistent API to interact with multiple cloud providers, where each provider is supported through its own special Nuget package.

Benefits

1. Easy to write code that is not tied to a specific cloud provider.

2. Easily switch between different providers without having to rewrite any part of their application or service.

3. Easily migrate to using a new storage technology for some part of your cloud application (S3 buckets, Azure Blobs, FTP, etc.)

4. Natively implement polycloud (support for multiple public clouds)

Storage Providers

FluentStorage supports the following cloud storage providers:

Storage Provider	Documentation
AWS S3	FluentStorage.AWS
Azure Blobs	FluentStorage.Azure.Blobs
Azure Files	FluentStorage.Azure.Files
Azure DataLake	FluentStorage.Azure.DataLake
Google Cloud Storage	FluentStorage.GCP
MinIO	FluentStorage.AWS -> MinIO
DigitalOcean Spaces	FluentStorage.AWS -> DigitalOcean Spaces
Wasabi	FluentStorage.AWS -> Wasabi

Packages

Stable binaries are released on NuGet, and contain everything you need to use Cloud Storage in your .NET app.

	Package	Latest Version	Downloads	Documentation
	FluentStorage			Standard
	FluentStorage.AWS			S3, SQS
	FluentStorage.GCP			GCP
	FluentStorage.Databricks			Databricks
	FluentStorage.FTP			FTP
	FluentStorage.SFTP			SFTP
	FluentStorage.Azure.Blobs			Blob
	FluentStorage.Azure.Files			File
	FluentStorage.Azure.EventHub			EventHub
	FluentStorage.Azure.ServiceBus			ServiceBus
	FluentStorage.Azure.KeyVault			KeyVault
	FluentStorage.Azure.ServiceFabric			ServiceFabric
	FluentStorage.Azure.Queues			Queue
	FluentStorage.Azure.DataLake			DataLake

Platform Support

FluentStorage works on .NET and .NET Standard/.NET Core.

Platform	Binaries Folder
.NET 5.0	net50
.NET 6.0	net60
.NET Standard 2.0	netstandard2.0
.NET Standard 2.1	netstandard2.1

FluentStorage is also supported on these platforms: (via .NET Standard)

• Mono 4.6
• Xamarin.iOS 10.0
• Xamarin.Android 10.0
• Universal Windows Platform 10.0

Binaries for all platforms are built from a single Visual Studio Project. You will need the latest Visual Studio to build or contribute to FluentStorage.

Documentation

Check the Wiki.

What's New

In 2024, we added:

• DigitalOcean Spaces provider
• MinIO provider
• Wasabi provider

In 2023, we added:

• SFTP provider SSH.NET added
• FTP provider FluentFTP updated to v44
• AWS Nuget bumped to latest versions
• Wiki created for documentation
• Platform support updated to netstandard2.0,netstandard2.1,net50,net60

Supported Cloud Services

Similar Libraries

• Foundatio - Caching, Messaging, Queues and Storage library with AWS, Azure and many other providers
• SlimMessageBus - Messaging library with providers like RabbitMQ, Kafka, Azure EventHub, MQTT, Redis
• ManagedCode.Storage - Storage library with AWS, Azure, GCP and other providers

Sponsorship

Has FluentStorage made a difference for you or your organization? If so, consider becoming a sponsor to help keep the project thriving. Even a small monthly contribution, like $20, can make a meaningful impact.

As a seasoned freelancer with over a decade of experience, your support helps me continue dedicating time to these open-source projects while also supporting my family. Your contributions directly fuel the work that makes a difference to millions of developers around the world.

Contributors

Special thanks to these awesome people who helped create FluentStorage! Shoutout to Ivan Gavryliuk for the original project Storage.Net.