Dernière version du 18 janvier 2025 à 23:21

Links

Mapping

// create destination from data from source
var destination = source.Adapt<Destination>();

// update destination with data from source
source.Adapt(destination);

Configuration

// global config
TypeAdapterConfig.GlobalSettings.Default.IgnoreNullValues(true);

// config the mapping from Item to ItemDto
TypeAdapterConfig<Item, ItemDto>  // src, dest
    .NewConfig()  // create new map config (overwrite existing ones)
    .ForType()    // OR create a map config if no one exists, otherwise append to th existing one
    .Ignore(dest => dest.Prop1)  // do not map Prop1
    .Map(dest => dest.Prop2, src => $"{0} {1}", src.Prop2, src.Prop3));  // custom mapping for Prop2

IRegister

Program.cs

// scan the assembly to load the classes implementing IRegister
TypeAdapterConfig.GlobalSettings.Scan(typeof(ItemMappingRegister).Assembly);

// load only on register
var register = new ItemMappingRegister();
var config = new TypeAdapterConfig();
config.Apply(register);

MappingRegisters/ItemMappingRegister.cs

public class ItemMappingRegister : IRegister
{
    public void Register(TypeAdapterConfig config) => config.NewConfig<CreateUpdateItemRequest, Item>();
}

Dependency Injection

dotnet add package Mapster.DependencyInjection

Program.cs

var config = new TypeAdapterConfig();
config.Scan(typeof(ItemMappingRegister).Assembly);
config.Compile();

services.AddSingleton(config);
services.AddScoped<IMapper, ServiceMapper>();

MappingRegisters/ItemMappingRegister.cs

public class ItemMappingRegister : IRegister
{
    public void Register(TypeAdapterConfig config)
        => config
            .NewConfig<ItemDto, Item>()
            .Map(dest => dest.Id, src => MapContext.Current.GetService<SomeService>().Do(src.Id));
}

MyService.cs

public class MyService(IMapper mapper)
{
    public void Do()
    {
        var itemDto = mapper.Map<ItemDto>(item);
    }
}

Mapster Global Configuration with Dependency Injection

Installation

dotnet add package Mapster

@@ Ligne 6 : / Ligne 6 : @@
 = Mapping =
 <kode lang='cs'>
-// create a new itemDto from item
+// create destination from data from source
-var itemDto = item.Adapt<ItemDto>();
+var destination = source.Adapt<Destination>();
-// update itemDto with data from item
+// update destination with data from source
-item.Adapt(itemDto);
+source.Adapt(destination);
 </kode>
@@ Ligne 25 : / Ligne 25 : @@
      .Map(dest => dest.Prop2, src => $"{0} {1}", src.Prop2, src.Prop3));  // custom mapping for Prop2
 </kode>
+== IRegister ==
+<filebox fn='Program.cs'>
+// scan the assembly to load the classes implementing IRegister
+TypeAdapterConfig.GlobalSettings.Scan(typeof(ItemMappingRegister).Assembly);
+// load only on register
+var register = new ItemMappingRegister();
+var config = new TypeAdapterConfig();
+config.Apply(register);
+</filebox>
+<filebox fn='MappingRegisters/ItemMappingRegister.cs'>
+public class ItemMappingRegister : IRegister
+{
+    public void Register(TypeAdapterConfig config) => config.NewConfig<CreateUpdateItemRequest, Item>();
+}
+</filebox>
 = [https://github.com/MapsterMapper/Mapster/wiki/Dependency-Injection Dependency Injection] =
-<kode lang='ps'>
+{{info | Useful if
-dotnet install Mapster.DependencyInjection
+* you migrate from Automapper to Mapster and you do not want to change your code
+* you need some injected services in your mappings}}
+<kode lang='bash'>
+dotnet add package Mapster.DependencyInjection
 </kode>
+<filebox fn='Program.cs'>
+var config = new TypeAdapterConfig();
+config.Scan(typeof(ItemMappingRegister).Assembly);
+config.Compile();
+services.AddSingleton(config);
+services.AddScoped<IMapper, ServiceMapper>();
+</filebox>
+<filebox fn='MappingRegisters/ItemMappingRegister.cs'>
+public class ItemMappingRegister : IRegister
+{
+    public void Register(TypeAdapterConfig config)
+        => config
+            .NewConfig<ItemDto, Item>()
+            .Map(dest => dest.Id, src => MapContext.Current.GetService<SomeService>().Do(src.Id));
+}
+</filebox>
+<filebox fn='MyService.cs'>
+public class MyService(IMapper mapper)
+{
+    public void Do()
+    {
+        var itemDto = mapper.Map<ItemDto>(item);
+    }
+}
+</filebox>
+* [https://stackoverflow.com/questions/61172885/mapster-global-configuration-with-dependency-injection Mapster Global Configuration with Dependency Injection]
 = Installation =