CommonGuy / mapperly

A .NET source generator for generating object mappings. Trimming save. Inspired by MapStruct.

Mapperly

Mapperly is a .NET source generator for generating object mappings. Inspired by MapStruct.

Because Mapperly creates the mapping code at build time, there is minimal overhead at runtime. Even better, the generated code is perfectly readable, allowing you to verify the generated mapping code easily.

Documentation

The documentation is available here.

Quickstart

Installation

Add the NuGet Package to your project:

dotnet add package Riok.Mapperly

Create your first mapper

Create a mapper declaration as a partial class and apply the Riok.Mapperly.Abstractions.MapperAttribute attribute. Mapperly generates mapping method implementations for the defined mapping methods in the mapper.

// Mapper declaration
[Mapper]
public partial class DtoMapper
{
    public partial CarDto CarToCarDto(Car car);
}

// Mapper usage
var mapper = new DtoMapper();
var car = new Car { NumberOfSeats = 10, ... };
var dto = mapper.CarToCarDto(car);
dto.NumberOfSeats.Should().Be(10);

Read the docs for any further information.

License

Mapperly is Apache 2.0 licensed.