Facet 1.8.0

.NET Standard 2.0 This package targets .NET Standard 2.0. 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There is a newer version of this package available.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 Facet --version 1.8.0
                    


                    

                
NuGet\Install-Package Facet -Version 1.8.0
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="Facet" Version="1.8.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Facet" Version="1.8.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Facet" />
                    


                            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 Facet --version 1.8.0
                    


                    

                
#r "nuget: Facet, 1.8.0"
#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 Facet@1.8.0
#: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=Facet&version=1.8.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Facet&version=1.8.0
                    


                            Install as a Cake Tool

Facet

NuGet Downloads License: MIT

"One part of a subject, situation, object that has many parts."

Facet is a C# source generator that lets you define lightweight projections (DTOs, API models, etc.) directly from your domain models — without writing boilerplate.

It generates partial classes, records, structs, or record structs with constructors, optional LINQ projections, and even supports custom mappings — all at compile time, with zero runtime cost.

What is Facetting?

Facetting is the process of defining focused views of a larger model at compile time.

Instead of manually writing separate DTOs, mappers, and projections, Facet allows you to declare what you want to keep — and generates everything else.

You can think of it like carving out a specific facet of a gem:

  • The part you care about
  • Leaving the rest behind.

Why Facetting?

  • Reduce duplication across DTOs, projections, and ViewModels
  • Maintain strong typing with no runtime cost
  • Stay DRY (Don't Repeat Yourself) without sacrificing performance
  • Works seamlessly with LINQ providers like Entity Framework

Key Features

  • ✅ Generate classes, records, structs, or record structs from existing types
  • ✅ Exclude fields/properties you don't want (create a Facetted view of your model)
  • ✅ Include public fields (optional)
  • ✅ Auto-generate constructors for fast mapping
  • ✅ LINQ projection expressions (Expression<Func<TSource,TTarget>>)
  • ✅ Custom mapping via IFacetMapConfiguration

Documentation

The Facet Ecosystem

Facet is modular and consists of several NuGet packages:

  • Facet: The core source generator. Generates DTOs, projections, and mapping code.
  • Facet.Extensions: Provider-agnostic extension methods for mapping and projecting (works with any LINQ provider, no EF Core dependency).
  • Facet.Extensions.EFCore: Async extension methods for Entity Framework Core (requires EF Core 6+).
  • Facet.Mapping: (Optional) Advanced static mapping configuration support for Facet.

Facet — Define less, project more.

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 was computed.  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 was computed.  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

    • No dependencies.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Facet:

Package Downloads
Facet.Extensions

Provider-agnostic extension methods for Facet.

GitHub repositories

This package is not used by any popular GitHub repositories.

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