AutoMapper with Array and JsonApiSerializer.JsonApi.Relationship - arrays

Question

I have an AppService solution with the following Classes and i want to map from the SourceObject to the DestinationObject
Source Classes
public class SourceObject
{
public string Id { get; set; }
public string Name { get; set; }
public JsonApiSerializer.JsonApi.Relationship<SourceChildObject[]> childObjects { get; set; }
}
public class SourceChildObject
{
public string Id { get; set; }
public string type { get; set; }
}
Destination Classes
public class DestinationObject
{
public string Id { get; set; }
public string Name { get; set; }
public JsonApiSerializer.JsonApi.Relationship<DestinationChildObject[]> childObjects { get; set; }
}
public class DestinationChildObject
{
public string Id { get; set; }
public string type { get; set; }
}
Auto mapper is setup in the sartup class
services.AddAutoMapper(typeof(EntityMappingProfile));
And my mapping class loos like this
public class EntityMappingProfile : Profile
{
public EntityMappingProfile()
{
CreateMap<SourceObject, DestinationObject>();
CreateMap<Relationship<SourceChildObject[]>, Relationship<DestinationChildObject[]>>();
}
}
When i execute the solution all fields are mapped apart form the array field of type JsonApiSerializer.JsonApi.Relationship. The destination field is null. What am i doing wrong?

Answer 1

You forgot about creating a map between SourceChildObject and DestinationChildObject. Add this line to your EntityMappingProfile.
CreateMap<SourceChildObject, DestinationChildObject>();
And one more thing, when you are mapping generic types, you can enable mapping for all types with:
CreateMap(typeof(Relationship<>), typeof(Relationship<>));
instead of creating a map with concrete use case of a generic type.