Vulthil.Messaging.Inbox.Cosmos 1.0.0

.NET 9.0 This package targets .NET 9.0. The package is compatible with this framework or higher. 
dotnet add package Vulthil.Messaging.Inbox.Cosmos --version 1.0.0
                    


                    

                
NuGet\Install-Package Vulthil.Messaging.Inbox.Cosmos -Version 1.0.0
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="Vulthil.Messaging.Inbox.Cosmos" Version="1.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Vulthil.Messaging.Inbox.Cosmos" Version="1.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Vulthil.Messaging.Inbox.Cosmos" />
                    


                            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 Vulthil.Messaging.Inbox.Cosmos --version 1.0.0
                    


                    

                
#r "nuget: Vulthil.Messaging.Inbox.Cosmos, 1.0.0"
#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 Vulthil.Messaging.Inbox.Cosmos@1.0.0
#: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=Vulthil.Messaging.Inbox.Cosmos&version=1.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Vulthil.Messaging.Inbox.Cosmos&version=1.0.0
                    


                            Install as a Cake Tool

Vulthil.Messaging.Inbox.Cosmos

Azure Cosmos DB idempotency store for Vulthil.Messaging.Inbox.

Cosmos has no cross-partition transaction, so — unlike the relational store — it cannot commit the consumer's writes and the idempotency marker atomically. This store therefore provides effectively-once processing: best-effort deduplication of redeliveries layered over idempotent-by-design consumer writes. Use deterministic document ids / upserts in your consumers so the rare interleaving the marker can't guard is harmless.

Usage

Expose the inbox set on your Cosmos DbContext and apply the mapping:

public sealed class AppDbContext(DbContextOptions<AppDbContext> options) : DbContext(options), ISaveInboxMessages
{
    public DbSet<InboxMessage> InboxMessages => Set<InboxMessage>();

    protected override void OnModelCreating(ModelBuilder modelBuilder)
        => modelBuilder.ApplyCosmosInbox();
}

builder.Services.AddCosmosInbox<AppDbContext>();

builder.AddMessaging(messaging =>
{
    messaging.UseRabbitMq(/* ... */);
    messaging.ConfigureQueue("orders", q => q.AddConsumer<OrderPlacedConsumer>());
    messaging.AddIdempotentInbox<OrderPlaced>();
});

The marker is a self-contained document keyed and partitioned by MessageId (its own container), so duplicate inserts conflict and are treated as already-processed. See the Inbox Pattern article for the guarantees and how this differs from the relational store.

Product Compatible and additional computed target framework versions.
.NET 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. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last Updated
1.0.0 45 6/21/2026