FluxFlow.Components.Projections 2.0.0

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package FluxFlow.Components.Projections --version 2.0.0
                    


                    

                
NuGet\Install-Package FluxFlow.Components.Projections -Version 2.0.0
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="FluxFlow.Components.Projections" Version="2.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="FluxFlow.Components.Projections" Version="2.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="FluxFlow.Components.Projections" />
                    


                            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 FluxFlow.Components.Projections --version 2.0.0
                    


                    

                
#r "nuget: FluxFlow.Components.Projections, 2.0.0"
#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 FluxFlow.Components.Projections@2.0.0
#: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=FluxFlow.Components.Projections&version=2.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=FluxFlow.Components.Projections&version=2.0.0
                    


                            Install as a Cake Tool

FluxFlow.Components.Projections

Reusable event projection components for FluxFlow.

Nodes

Node type Shape Purpose
event.projection Input → Output, Errors Projects matching runtime events into count, latest-event, and rolling-rate snapshots.

event.projection consumes FlowEvent values from FluxFlow.Engine and emits EventProjectionSnapshot values.

Example

{
  "type": "event.projection",
  "name": "failed-operations",
  "rateWindowSeconds": 60,
  "maxPreviewChars": 256,
  "filter": {
    "typePrefix": "operation.",
    "status": "failed",
    "subjectPrefix": "orders/",
    "attributes": {
      "tenant": "north"
    }
  }
}

The snapshot includes:

  • observed event count
  • matched event count
  • rolling current rate
  • first and last matched timestamps
  • latest matching event summary
  • latest payload preview with a configured length limit

Filters

EventFilter supports:

  • event type or type prefix
  • subject prefix
  • channel prefix
  • excluded subject prefix
  • excluded channel prefix
  • status
  • source
  • source node id
  • component id through an event attribute named componentId
  • attribute key/value pairs
  • event timestamp range

Filters use ordinal string comparison.

Timing

Use ProjectionsComponentOptions.UseClock(...) for deterministic snapshot timestamps in tests or hosts.

registry.RegisterProjectionsComponents(options =>
    options.UseClock(timeProvider));

Event rate uses matching event timestamps. Snapshot timestamps use the configured projection clock.

Boundaries

This package has no UI dependency and no host-specific resource assumptions. Hosts decide how snapshots are displayed, stored, tested, or forwarded.

Product Compatible and additional computed target framework versions.
.NET 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 was computed.  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 (3)

Showing the top 3 NuGet packages that depend on FluxFlow.Components.Projections:

Package Downloads
FluxFlow.Components.Expectations

Standalone projection-event expectations with typed outcomes and diagnostics.
FluxFlow.Components.Projections.Composition

Canonical event-projection result registration and Designer metadata over host-owned clocks.
FluxFlow.Components.Expectations.Composition

Canonical projection-event expectation registration and Designer metadata over exact host-owned clock addresses.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
8.0.0-rc.1 90 9/5/2026
7.0.0 247 8/3/2026
3.0.2 150 7/3/2026
3.0.1 240 7/2/2026
3.0.0 132 6/19/2026
2.0.0 158 6/18/2026
1.1.0 170 6/12/2026
1.0.0 140 6/4/2026
0.1.0-alpha.1 79 6/3/2026

2.0 preview: the node's static Create(RuntimeNodeFactoryContext …) factory moves into a dedicated internal *NodeFactory class, removing the public static Create from the node type (breaking). Node registration, options, ports, JSON shape, and runtime behavior are unchanged. Replaces the bespoke IProjectionClock abstraction with System.TimeProvider (UseClock now takes a TimeProvider; the old clock interface/implementation are removed).