public HumanObject(IHumanRepository humanRepository)
{
this.Name = "Human";
this.Description = "A humanoid creature from the Star Wars universe.";
// this.AuthorizeWith(AuthorizationPolicyName.Admin); // To require authorization for all fields in this type.
this.Field(x => x.Id, type: typeof(NonNullGraphType <IdGraphType>))
.Description("The unique identifier of the human.");
this.Field(x => x.Name)
.Description("The name of the human.");
this.Field(x => x.DateOfBirth)
.AuthorizeWith(AuthorizationPolicyName.Admin) // Require authorization to access the date of birth field.
.Description("The humans date of birth.");
this.Field(x => x.HomePlanet, nullable: true)
.Description("The home planet of the human.");
this.Field(x => x.AppearsIn, type: typeof(ListGraphType <EpisodeEnumeration>))
.Description("Which movie they appear in.");
this.FieldAsync <ListGraphType <CharacterInterface>, List <Character> >(
nameof(Human.Friends),
"The friends of the character, or an empty list if they have none.",
resolve: context => humanRepository.GetFriendsAsync(context.Source, context.CancellationToken));
this.Interface <CharacterInterface>();
}
public HumanGType(IHumanRepository humanRepository, IDataLoaderContextAccessor dataLoader)
{
_humanRepository = humanRepository;
Connection <HumanGType>()
.Name("humans")
.Unidirectional()
.PageSize(10)
.ResolveAsync(async context =>
{
var loader = dataLoader.Context.GetOrAddCollectionBatchLoader <Guid, Character>("FriendsLoader", _humanRepository.GetFriendsAsync);
// IMPORTANT: In order to avoid deadlocking on the loader we use the following construct (next 2 lines):
var loadHandle = loader.LoadAsync(context.Source.Id);
var result = await loadHandle;
return(await result.ToConnection(context));
});
Name = "Human";
Description = "A humanoid creature from the Star Wars universe.";
Field(x => x.Id, type: typeof(IdGraphType)).Description("The unique identifier of the human.");
Field(x => x.Name).Description("The name of the human.");
Field(x => x.HomePlanet, nullable: true).Description("The home planet of the human.");
Field <ListGraphType <EpisodeGType> >(nameof(Character.AppearsIn), "Which movie they appear in.");
FieldAsync <ListGraphType <CharacterInterface>, List <Character> >(
nameof(Human.Friends),
"The friends of the character, or an empty list if they have none.",
resolve: context => _humanRepository.GetFriendsAsync(context.Source, context.CancellationToken));
Interface <CharacterInterface>();
//Authorization on entire Type
this.AuthorizeWith("AdminPolicy");
}
public Task <List <Character> > GetFriendsAsync(
[Service] IHumanRepository humanRepository,
[Parent] Human human,
CancellationToken cancellationToken) =>
humanRepository.GetFriendsAsync(human, cancellationToken);