Dependency Injection - MapsterMapper/Mapster GitHub Wiki

Dependency injection support

PM> Install-Package Mapster.DependencyInjection

This plugin allows you to inject service into mapping configuration.

Usage

On startup, register TypeAdapterConfig, and ServiceMapper.

public void ConfigureServices(IServiceCollection services)
{
    ...
    var config = new TypeAdapterConfig();
    // Or
    // var config = TypeAdapterConfig.GlobalSettings;
    services.AddSingleton(config);
    services.AddScoped<IMapper, ServiceMapper>();
    ...
}

NOTE: lifetime of ServiceMapper is up to services you would like to inject. It can be singleton, if you inject only singleton services. Or it can be transient, if any injected services is transient.

Mapping configuration

You can get service by MapContext.Current.GetService<>(), for example

config.NewConfig<Poco, Dto>()
    .Map(dest => dest.Name, src => MapContext.Current.GetService<INameFormatter>().Format(src.Name));

Mapping

If you setup service injection, you need to use mapper instance to map object.

public class FooService {
    private readonly IMapper _mapper;

    public FooService(IMapper mapper) {
        _mapper = mapper;
    }

    public void DoSomething(Poco poco) {
        var dto = _mapper.Map<Dto>(poco);
        ...
    }
}