// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
// Add Mediatr
services.AddMediatR(typeof(Startup));
// Add GraphQL services and configure options
services
.AddSingleton <TopLevelResolver>()
.AddSingleton <AnyScalarGraphType>()
.AddSingleton <ServiceGraphType>()
.AddSingleton(provider =>
{
return(FederatedSchema.For(File.ReadAllText("schema.gql"), schemaBuilder =>
{
schemaBuilder.ServiceProvider = provider;
schemaBuilder.Types.Include <TopLevelResolver>();
}));
})
.AddGraphQL((options, provider) =>
{
var env = provider.GetRequiredService <IWebHostEnvironment>();
options.EnableMetrics = env.IsDevelopment();
var logger = provider.GetRequiredService <ILogger <Startup> >();
options.UnhandledExceptionDelegate = ctx => logger.LogError("{Error} occured", ctx.OriginalException.Message);
})
.AddSystemTextJson(deserializerSettings => { }, serializerSettings => { })
.AddErrorInfoProvider((opt, provider) =>
{
var env = provider.GetRequiredService <IWebHostEnvironment>();
opt.ExposeExceptionStackTrace = env.IsDevelopment();
})
.AddDataLoader();
}
static void Main(string[] args)
{
var schemaPath = "schema.graphql";
var schema = File.ReadAllText(schemaPath);
var federatedSchema = FederatedSchema.For(schema, _ => { });
var printer = new FederatedSchemaPrinter(federatedSchema);
Console.WriteLine(printer.PrintFederatedSchema());
}
public void PrintObject_ReturnsEmptyString_GivenQueryTypeHasOnlyFederatedFields(string definitions, string expected)
{
// Arrange
var schema = FederatedSchema.For(definitions);
SchemaPrinterOptions options = default;
schema.Initialize();
var query = schema.Query;
var federatedSchemaPrinter = new FederatedSchemaPrinter(schema, options);
// Act
string result = federatedSchemaPrinter.PrintObject(query);
// Assert
Assert.Equal(expected, result);
}
public void PrintObject_ReturnsEmptyString_GivenQueryTypeHasOnlyFederatedFields()
{
// Arrange
var schema = FederatedSchema.For(@"type X @key(fields: ""id"") { id: ID! }");
SchemaPrinterOptions options = default;
schema.Initialize();
var query = schema.Query;
var federatedSchemaPrinter = new FederatedSchemaPrinter(schema, options);
// Act
string result = federatedSchemaPrinter.PrintObject(query);
// Assert
Assert.Equal(string.Empty, result);
}
/// <summary>
/// Builds the federated schema
/// </summary>
/// <param name="serviceProvider"></param>
/// <returns></returns>
private static ISchema BuildSchema(IServiceProvider serviceProvider)
{
return(FederatedSchema.For(string.Join("", new List <string> {
IdentitySchema.Definition
}), _ =>
{
_.ServiceProvider = serviceProvider;
_.Types.Include <Query>();
_.Types.Include <IdentityType>();
_.Types.Include <UserType>();
_.Types.Include <Mutation>();
_.Types.Include <IdentityOpsType>();
_.Types.Include <RegisterInputType>();
_.Types.Include <LoginInputType>();
}));
}
public void ConfigureServices(IServiceCollection services)
{
services.AddMvc();
// GraphQL types
services.AddSingleton <IDocumentWriter, DocumentWriter>();
services.AddSingleton <IDocumentExecuter, DocumentExecuter>();
// Apollo Federation Types
services.AddSingleton <AnyScalarGraphType>();
services.AddSingleton <ServiceGraphType>();
// Custom Types
services.AddSingleton <UsersStore>();
services.AddTransient <Query>();
services.AddTransient <ISchema>(s =>
{
var store = s.GetRequiredService <UsersStore>();
return(FederatedSchema.For(@"
extend type Query {
me: User
}
type User @key(fields: ""id"") {
id: ID!
name: String
username: String
}
", _ =>
{
_.ServiceProvider = s;
_.Types.Include <Query>();
_.Types.For("User").ResolveReferenceAsync(context =>
{
var id = (string)context.Arguments["id"];
return store.GetUserById(id);
});
}));
});
}
public static ISchema BuildFederatedSchema(IServiceProvider serviceProvider)
{
var schema = File.ReadAllText(_schemaPath);
return(FederatedSchema.For(schema, _ =>
{
_.ServiceProvider = serviceProvider;
_.Types
.Include <Author>();
_.Types
.Include <BookType>();
_.Types
.Include <AuthorInput>();
_.Types
.Include <AuthorQuery>();
_.Types
.Include <AuthorMutation>();
_.Types
.For(nameof(Author))
.ResolveReferenceAsync(async context =>
{
using var scope = serviceProvider.CreateScope();
//var logger = scope.ServiceProvider.GetRequiredService<ILogger>();
var authorRepository = scope.ServiceProvider.GetRequiredService <IAuthorRepository>();
//logger.LogDebug("Parsing id for aggregate root");
var id = Guid.Parse((string)context.Arguments["id"]);
//logger.LogDebug("Resolving reference for {AggregateRootName} by id {Id}", nameof(Author), id);
var author = await authorRepository.RetrieveAuthorByAuthorIdAsync(id);
var result = author.AsAuthorType();
return result;
});
}));
}
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services
.AddControllerServices()
.AddDbServices(Configuration)
.AddMediatRServices()
.AddSingleton <AnyScalarGraphType>()
.AddSingleton <ServiceGraphType>()
.AddSingleton <Schema.Book>()
.AddSingleton <Schema.Author>()
.AddSingleton <BookInput>()
.AddSingleton <BookQuery>()
.AddSingleton <BookMutation>()
.AddSingleton <ISchema>(s =>
{
var schema = File.ReadAllText(_schemaPath);
return(FederatedSchema.For(schema, _ =>
{
_.ServiceProvider = s;
_.Types
.Include <Schema.Book>();
_.Types
.Include <Schema.Author>();
_.Types
.Include <BookInput>();
_.Types
.Include <BookQuery>();
_.Types
.Include <BookMutation>();
_.Types
.For("Book")
.ResolveReferenceAsync(async context =>
{
using var scope = s.CreateScope();
var logger = scope.ServiceProvider.GetRequiredService <ILogger <Startup> >();
var bookRepository = scope.ServiceProvider.GetRequiredService <IBookRepository>();
try
{
logger.LogDebug("Parsing id for aggregate root");
var id = Guid.Parse((string)context.Arguments["id"]);
logger.LogDebug("Resolving reference for {AggregateRootName} by id {Id}", nameof(Domain.BookAggregate.Book), id);
var book = await bookRepository.RetrieveBookByBookIdAsync(id);
logger.LogDebug("({@AggregateRoot})", book);
logger.LogDebug("Book: Id {Id}, Title {Title}, Overview {Overview}, AuthorId {AuthorId}, Isbn {ISBN}, Publiser {Publisher}, PublicationDate {PublicationDate}, Pages {Pages}", book.Id, book.Title, book.Overview, book.Author.Id, book.Isbn, book.Publisher, book.PublicationDate, book.Pages);
logger.LogDebug("Extending {AggregateRoot} as {GraphType}", nameof(Domain.BookAggregate.Book), nameof(Domain.BookAggregate.Book));
var result = book.AsBookType();
logger.LogDebug("BookType: Id {Id}, Title {Title}, Overview {Overview}, AuthorId {AuthorId}, Isbn {ISBN}, Publiser {Publisher}, PublicationDate {PublicationDate}, Pages {Pages}", result.Id, result.Title, result.Overview, result.Author.Id, result.Isbn, result.Publisher, result.PublicationDate, result.Pages);
logger.LogDebug("Returning result ({@Result})", book);
//var taskResult = Task.FromResult(result);
return book;
}
catch (Exception ex)
{
logger.LogError(ex, "Something messed up?");
throw;
}
});
}));
})
.AddGraphQL(options =>
{
options.EnableMetrics = true;
})
.AddSystemTextJson();
}
public static IServiceCollection AddGraphQLServices(this IServiceCollection services)
{
services
.AddSingleton <AnyScalarGraphType>()
.AddSingleton <ServiceGraphType>()
.AddSingleton <Schema.Book>()
.AddSingleton <Schema.Author>()
.AddSingleton <BookInput>()
.AddSingleton <BookQuery>()
.AddSingleton <BookMutation>()
.AddTransient <ISchema>(s =>
{
//var books = s.GetRequiredService<IBookService>();
return(FederatedSchema.For(@"
type Book @key(fields: ""id"") {
id: ID!
title: String
overview: String
author: Author
isbn: Long
publisher: String
publicationDate: Date
pages: Int
}
extend type Author @key(fields: ""id"") {
id: ID! @external
}
input BookInput {
title: String!
overview: String!
authorId: String!
isbn: Long!
publisher: String!
publicationDate: Date!
pages: Int!
}
extend type Query {
books:[Book!]
book(id: ID!): Book
}
extend type Mutation {
createBook(bookInput: BookInput): Book
}
", _ =>
{
_.ServiceProvider = s;
_.Types
.Include <Schema.Book>();
_.Types
.Include <Schema.Author>();
_.Types
.Include <BookInput>();
_.Types
.Include <BookQuery>();
_.Types
.Include <BookMutation>();
_.Types
.For("Book")
.ResolveReferenceAsync(async context =>
{
using var scope = s.CreateScope();
var logger = scope.ServiceProvider.GetRequiredService <ILogger>();
var bookRepository = scope.ServiceProvider.GetRequiredService <IBookRepository>();
logger.LogDebug("Parsing id for aggregate root");
var id = Guid.Parse((string)context.Arguments["id"]);
logger.LogDebug("Resolving reference for {AggregateRootName} by id {Id}", nameof(Domain.BookAggregate.Book), id);
var book = await bookRepository.RetrieveBookByBookIdAsync(id);
var result = book.AsBookType();
return result;
});
}));
})
.AddGraphQL()
.AddSystemTextJson();
return(services);
}
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddMediatR(typeof(Startup));
// Add GraphQL services and configure options
services
.AddSingleton <TopLevelResolver>()
.AddSingleton <MovieResolver>()
.AddSingleton <ReviewResolver>()
.AddSingleton <AnyScalarGraphType>()
.AddSingleton <ServiceGraphType>()
.AddSingleton(provider =>
{
return(FederatedSchema.For(File.ReadAllText("schema.gql"), schemaBuilder =>
{
schemaBuilder.ServiceProvider = provider;
schemaBuilder.Types.Include <TopLevelResolver>();
schemaBuilder.Types.Include <MovieResolver>();
schemaBuilder.Types.Include <ReviewResolver>();
// reference resolvers
schemaBuilder.Types.For("Review").ResolveReferenceAsync(ctx =>
{
var mediator = provider.GetRequiredService <IMediator>();
var reviewId = (string)ctx.Arguments["id"];
return mediator.Send(new GetReviewById.Request(reviewId));
});
}));
})
.AddGraphQL((options, provider) =>
{
var env = provider.GetRequiredService <IWebHostEnvironment>();
options.EnableMetrics = env.IsDevelopment();
var logger = provider.GetRequiredService <ILogger <Startup> >();
options.UnhandledExceptionDelegate = ctx => logger.LogError("{Error} occured", ctx.OriginalException.Message);
})
.AddSystemTextJson(deserializerSettings => { }, serializerSettings => { })
.AddErrorInfoProvider((opt, provider) =>
{
var env = provider.GetRequiredService <IWebHostEnvironment>();
opt.ExposeExceptionStackTrace = env.IsDevelopment();
})
.AddDataLoader();
services.AddSingleton <GetReviewsContext>(serviceProvider => () => new[]
{
new Review {
Id = "1111", MovieId = "111", Stars = 4.7, Message = "Outstanding movie with a haunting performance and best character development ever seen.", ContainsSpoilers = false, Created = new DateTime(2019, 09, 10)
},
new Review {
Id = "1112", MovieId = "111", Stars = 4.4, Message = "A psychological study, rather than a superhero flick.", ContainsSpoilers = true, Created = new DateTime(2019, 10, 03)
},
new Review {
Id = "1113", MovieId = "111", Stars = 3.9, Message = "Joaquin 'OSCAR', Joker = best Dark suspense thriller ... Darker than dark Knight.", ContainsSpoilers = false, Created = new DateTime(2019, 09, 10)
},
new Review {
Id = "2221", MovieId = "222", Stars = 4.7, Message = "For the first time in forever a true Disney classic is realized.", ContainsSpoilers = true, Created = new DateTime(2019, 10, 07)
},
new Review {
Id = "2222", MovieId = "222", Stars = 4.2, Message = "A funny and unpredictable Disney Princess musical.", ContainsSpoilers = false, Created = new DateTime(2019, 09, 01)
},
new Review {
Id = "3331", MovieId = "333", Stars = 4.8, Message = "Downright not awful!", ContainsSpoilers = false, Created = new DateTime(2019, 10, 04)
}
});
}