Soenneker.Streams.Prefixed 4.0.32

Prefix Reserved

dotnet add package Soenneker.Streams.Prefixed --version 4.0.32

NuGet\Install-Package Soenneker.Streams.Prefixed -Version 4.0.32

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="Soenneker.Streams.Prefixed" Version="4.0.32" />

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

<PackageVersion Include="Soenneker.Streams.Prefixed" Version="4.0.32" />
                    

                            Directory.Packages.props

<PackageReference Include="Soenneker.Streams.Prefixed" />
                    

                            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 Soenneker.Streams.Prefixed --version 4.0.32

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

#r "nuget: Soenneker.Streams.Prefixed, 4.0.32"

#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 Soenneker.Streams.Prefixed@4.0.32

#: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=Soenneker.Streams.Prefixed&version=4.0.32
                    

                            Install as a Cake Addin

#tool nuget:?package=Soenneker.Streams.Prefixed&version=4.0.32
                    

                            Install as a Cake Tool

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

Soenneker.Streams.Prefixed

A forward-only stream that replays prefetched bytes before continuing from the current position of another stream.

Installation

dotnet add package Soenneker.Streams.Prefixed

Usage

Use it when inspecting the beginning of a non-seekable stream without losing those bytes for the next consumer:

using System.Buffers;
using Soenneker.Streams.Prefixed;

Stream source = await OpenInputStream(cancellationToken);
byte[] prefix = ArrayPool<byte>.Shared.Rent(512);

int prefixLength = await source.ReadAsync(
    prefix.AsMemory(0, 512),
    cancellationToken);

InspectHeader(prefix.AsSpan(0, prefixLength));

// Ownership of both source and prefix transfers to replayStream.
await using var replayStream = new PrefixedStream(source, prefix, prefixLength);
await ConsumeFromBeginning(replayStream, cancellationToken);

The first reads return bytes from prefix[0..prefixLength]. Once those bytes are exhausted, reads continue from source at its existing position. A read may return only the remaining prefix even when the caller's buffer has more space; consumers must follow normal Stream semantics and continue reading until zero is returned.

Ownership and constraints

prefix must have been rented from ArrayPool<byte>.Shared, and prefixLength must be between zero and the buffer length. The wrapper returns that array to the shared pool when the prefix is exhausted or the wrapper is disposed. Do not read, modify, or return the array after constructing the wrapper.

Disposing the wrapper also disposes the inner stream; there is no leaveOpen mode. The wrapper does not support seeking, writing, length, position, resizing, or flushing.

Returned buffers are not cleared. Do not use the prefix for sensitive material that must be erased before pooled reuse.

Product	Compatible and additional computed target framework versions.
.NET	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.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net10.0
- Soenneker.Extensions.ValueTask (>= 4.0.121)

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Soenneker.Streams.Prefixed:

Package	Downloads
Soenneker.Extensions.HttpResponseMessage A collection of helpful HttpResponseMessage extension methods	1.5M

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
4.0.32	1,781	9/7/2026
4.0.31	300	9/7/2026
4.0.30	6,530	8/31/2026
4.0.29	864	8/30/2026
4.0.28	1,110	8/30/2026
4.0.27	164	8/29/2026
4.0.26	15,943	7/28/2026
4.0.25	927	7/27/2026
4.0.24	5,998	7/16/2026
4.0.23	959	7/16/2026
4.0.22	9,563	6/19/2026
4.0.21	277	6/18/2026
4.0.20	9,583	6/5/2026
4.0.17	12,318	4/23/2026
4.0.16	11,594	3/13/2026
4.0.12	204	3/12/2026
4.0.10	4,291	3/11/2026
4.0.9	214	3/10/2026
4.0.8	3,194	3/10/2026
4.0.7	372	3/9/2026

Updated Multiple NuGet packages