MapFlow 1.0.3
dotnet add package MapFlow --version 1.0.3
NuGet\Install-Package MapFlow -Version 1.0.3
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="MapFlow" Version="1.0.3" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="MapFlow" Version="1.0.3" />
<PackageReference Include="MapFlow" />
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 MapFlow --version 1.0.3
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: MapFlow, 1.0.3"
#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 MapFlow@1.0.3
#: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=MapFlow&version=1.0.3
#tool nuget:?package=MapFlow&version=1.0.3
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
MapFlow
Zero-reflection, zero-dependency object mapper for .NET. AOT compatible, no System.Reflection, no runtime code generation, no DI container required.
MapFlow sits between writing mapping code by hand (tedious) and pulling in AutoMapper (heavy, reflection-based, profile hell). It gives you three mapping strategies that scale with your needs.
Quick start
using MapFlow;
// ─── 1. Lambda-based (ad-hoc, no setup) ───
ProductDto dto = product.Map(p => new ProductDto
{
Id = p.Id,
Name = p.Name,
Price = p.Price
});
// ─── 2. Interface-based (declarative, reusable) ───
ProductDto dto = Mapper.Map<Product, ProductDto>(product);
List<ProductDto> dtos = Mapper.Map<Product, ProductDto>(products);
// ─── 3. Source Generator (zero-boilerplate) ───
public partial class ProductDto : IMapFrom<Product>
{
public int Id { get; set; }
public string Name { get; set; } = string.Empty;
public decimal Price { get; set; }
// Source Generator auto-generates MapFrom(Product source)
// You can still add CustomMapFrom(Product) for edge cases
}
// ─── In-place mutation ───
product.Apply(p => { p.Name = request.Name; });
// ─── PagedResult ───
PagedResult<ProductDto> dtos = pagedProducts.Map(p => new ProductDto(/*...*/));
Why MapFlow?
| Concern | AutoMapper | MapFlow |
|---|---|---|
| Reflection | Yes — startup cost + runtime | Zero |
| Dependencies | Massive graph | Zero dependencies |
| AOT / Native | ❌ | ✅ Compatible |
| DI required | Usually | Not required |
| Profiles | Yes — separate config | Interfaces or lambdas |
| Source Generator | ❌ | ✅ Auto-maps matching props |
| Null safety | NullReferenceException | ArgumentNullException everywhere |
API at a glance
| Method | What it does |
|---|---|
source.Map(selector) |
Projects a single object |
source.Map(selector) (IEnumerable) |
Projects a list |
Mapper.Map<TSrc,TDst>(source) |
Interface-based mapping |
source.MapTo<TDest>() |
Fluent interface-based mapping |
source.Apply(mutator) |
Mutates and returns the same instance |
source.Apply(transform) |
Transforms and returns a new instance |
pagedResult.Map(selector) |
Projects PagedResult preserving metadata |
Mapper.Map<TSrc,TDst>(items) |
Maps a list via interfaces |
All methods validate arguments and throw ArgumentNullException — no silent NPEs.
Supported types
class✅record✅record struct✅struct✅readonly struct✅
The Source Generator detects class, struct, record, and record struct keywords automatically — no manual configuration.
Learn more
Full documentation, samples, and contribution guide:
| Product | Versions 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 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. |
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.
-
net8.0
- No dependencies.
NuGet packages
This package is not used by any NuGet packages.
GitHub repositories
This package is not used by any popular GitHub repositories.