MapperConfiguration

import automapper;
import std.datetime : SysTime;

static class Address {
    long zipcode = 42_420;
    string city = "London";
}

static class User {
    Address address = new Address();
    string name = "Foo";
    string lastName = "Bar";
    string mail = "foo.bar@baz.fr";
    long timestamp;
}

static class UserDTO {
    string fullName;
    string email;
    string addressCity;
    long   addressZipcode;
    SysTime timestamp;
    int context;
}

alias MyConfig = MapperConfiguration!(
    // create a type converter for a long to SysTime
    CreateMap!(long, SysTime)
        .ConvertUsing!((long ts) => SysTime(ts)),
    // create a mapping for User to UserDTO
    CreateMap!(User, UserDTO)
        // map member using a delegate
        .ForMember!("fullName", (User a) => a.name ~ " " ~ a.lastName )
        // map UserDTO.email to User.mail
        .ForMember!("email", "mail")
        // ignore UserDTO.context
        .Ignore!"context");
        // other member are automatically mapped

auto am = MyConfig.createMapper();

auto user = new User();
const UserDTO dto = am.map!UserDTO(user);

assert(dto.fullName == user.name ~ " " ~ user.lastName);
assert(dto.addressCity == user.address.city);
assert(dto.addressZipcode == user.address.zipcode);