Nested Mappings

Nested mappings allow you to map nested objects from a source object to a destination object. For example, consider the following classes:

class User {
    public string $name;
    public Address $address;
}

class Address {
    public string $street;
    public string $city;
}

class UserDto {
    public string $name;
    public AddressDto $address;
}

class AddressDto {
    public string $street;
    public string $city;
}

In this case, User has a nested Address object. If you want to map User to UserDto, and also map the nested Address to AddressDto:

$config = new MapperConfiguration(fn (Config $config) => $config
    ->createMap(User::class, UserDto::class)
    ->createMap(Address::class, AddressDto::class)
);

In this configuration, AutoMapper will automatically map the nested Address object when mapping User to UserDto.