OwlCore.Storage.AmazonS3 0.1.1

.NET 8.0 .NET Standard 2.0

dotnet add package OwlCore.Storage.AmazonS3 --version 0.1.1

NuGet\Install-Package OwlCore.Storage.AmazonS3 -Version 0.1.1

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="OwlCore.Storage.AmazonS3" Version="0.1.1" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="OwlCore.Storage.AmazonS3" Version="0.1.1" />
                    

                            Directory.Packages.props

<PackageReference Include="OwlCore.Storage.AmazonS3" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add OwlCore.Storage.AmazonS3 --version 0.1.1

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: OwlCore.Storage.AmazonS3, 0.1.1"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package OwlCore.Storage.AmazonS3@0.1.1

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=OwlCore.Storage.AmazonS3&version=0.1.1
                    

                            Install as a Cake Addin

#tool nuget:?package=OwlCore.Storage.AmazonS3&version=0.1.1
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

OwlCore.Storage.AmazonS3

Amazon S3 (and S3-compatible) storage implementation for OwlCore.Storage.

Target frameworks

The library currently targets netstandard2.0, net8.0, net9.0, net10.0.

Main types

S3Folder
S3File
S3ReadWriteStream

Behavior notes

Folder semantics are represented over object keys.
Stream writes use multipart upload when needed.
CreateCopyOfAsync / MoveFromAsync use server-side S3 copy when available.
If a provider rejects S3 copy semantics (for example copy-source related 400 responses), the implementation falls back to stream-copy for compatibility.

Basic usage

using Amazon.Runtime;
using Amazon.S3;
using OwlCore.Storage.AmazonS3;

var client = new AmazonS3Client(
    new BasicAWSCredentials("accessKey", "secretKey"),
    new AmazonS3Config
    {
        ServiceURL = "https://your-s3-endpoint",
        ForcePathStyle = true,
        AuthenticationRegion = "us-east-1"
    });

var folder = new S3Folder(client, "my-bucket", "app-data");
var file = await folder.CreateFileAsync("hello.txt");
await file.WriteBytesAsync("Hello"u8.ToArray());

Build

dotnet restore
dotnet build

Tests

Test project:

tests/OwlCore.Storage.AmazonS3.Tests.csproj

Local required environment variables

SUPABASE_S3_ENDPOINT
SUPABASE_S3_ACCESS_KEY
SUPABASE_S3_SECRET_KEY
SUPABASE_S3_BUCKET

Optional:

SUPABASE_S3_REGION (default us-east-1)
SUPABASE_S3_FORCE_PATH_STYLE (default true)

A tests.runsettings file is included at repo root.

Run tests:

dotnet test tests/OwlCore.Storage.AmazonS3.Tests.csproj --settings tests.runsettings

The test project also defines RunSettingsFilePath, so this also works:

dotnet test tests/OwlCore.Storage.AmazonS3.Tests.csproj

GitHub Actions test workflow

Workflow file:

.github/workflows/ci.yml

build runs on every push/PR to main.

test-supabase runs only when required secrets are set.

Set these repository Secrets:

SUPABASE_S3_ENDPOINT
SUPABASE_S3_ACCESS_KEY
SUPABASE_S3_SECRET_KEY
SUPABASE_S3_BUCKET

Optional repository Variables:

SUPABASE_S3_REGION (recommended us-east-1)
SUPABASE_S3_FORCE_PATH_STYLE (true recommended)

Test data cleanup

folder tests are scoped under oc-foldertests/...
file tests are scoped under oc-filetests/...
those prefixes are cleaned before/after class execution

License

See LICENSE.

Product	Compatible and additional computed target framework versions.
.NET	net5.0 was computed. net5.0-windows was computed. net6.0 was computed. net6.0-android was computed. net6.0-ios was computed. net6.0-maccatalyst was computed. net6.0-macos was computed. net6.0-tvos was computed. net6.0-windows was computed. net7.0 was computed. net7.0-android was computed. net7.0-ios was computed. net7.0-maccatalyst was computed. net7.0-macos was computed. net7.0-tvos was computed. net7.0-windows was computed. net8.0 is compatible. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 is compatible. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed.
.NET Core	netcoreapp2.0 was computed. netcoreapp2.1 was computed. netcoreapp2.2 was computed. netcoreapp3.0 was computed. netcoreapp3.1 was computed.
.NET Standard	netstandard2.0 is compatible. netstandard2.1 was computed.
.NET Framework	net461 was computed. net462 was computed. net463 was computed. net47 was computed. net471 was computed. net472 was computed. net48 was computed. net481 was computed.
MonoAndroid	monoandroid was computed.
MonoMac	monomac was computed.
MonoTouch	monotouch was computed.
Tizen	tizen40 was computed. tizen60 was computed.
Xamarin.iOS	xamarinios was computed.
Xamarin.Mac	xamarinmac was computed.
Xamarin.TVOS	xamarintvos was computed.
Xamarin.WatchOS	xamarinwatchos was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

.NETStandard 2.0
- AWSSDK.S3 (>= 4.0.19)
- Microsoft.Bcl.Memory (>= 10.0.5)
- OwlCore.Storage (>= 0.15.0)
- System.Buffers (>= 4.6.1)
- System.Memory (>= 4.6.3)
- System.Threading.Tasks.Extensions (>= 4.6.3)
net10.0
- AWSSDK.S3 (>= 4.0.19)
- Microsoft.Bcl.Memory (>= 10.0.5)
- OwlCore.Storage (>= 0.15.0)
net8.0
- AWSSDK.S3 (>= 4.0.19)
- Microsoft.Bcl.Memory (>= 10.0.5)
- OwlCore.Storage (>= 0.15.0)
net9.0
- AWSSDK.S3 (>= 4.0.19)
- Microsoft.Bcl.Memory (>= 10.0.5)
- OwlCore.Storage (>= 0.15.0)

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
0.1.1	78	3/21/2026
0.1.0	79	3/18/2026

[0.1.1]
- Made impl. behavior more consistent w/ other impls
- Threw `FileAlreadyExistsException` instead of `IOException` when file or folder already exists.
- Used provided fallback methods.
- Consolidated copy/move logic into separate helper methods
- Consolidated properties into separate classes
- Improved property organization & added modifiability
- Optimized stream based on read/write access mode
- Removed redundant fastpath for `GetFirstByNameAsync`
- Made tests rely on repo secrets instead of environment
- Changed the `IOExceptions` to `FileAlreadyExistsException` where appropriate
- Moved property methods to the respective property classes
- Made constructor where path normalization is assumed
- Used `ConfigureAwait(false)` on repeated async calls inside library methods
- Cached `Path` output

[0.1.0]
Initial public package release with S3 folder/file abstractions, stream-based read/write support, multipart uploads, and improved compatibility for S3-compatible providers.