/// <summary>
/// Add required services for GraphQL data loader support
/// </summary>
/// <param name="builder"></param>
/// <returns></returns>
public static IGraphQLBuilder AddDataLoader(this IGraphQLBuilder builder)
{
builder.Services.TryAddSingleton <IDataLoaderContextAccessor, DataLoaderContextAccessor>();
builder.Services.AddSingleton <IDocumentExecutionListener, DataLoaderDocumentListener>();
return(builder);
}
private static void WithPayload(this IGraphQLBuilder builder, Func <string> payloadFactory, PayloadType payloadType)
{
builder.Advanced.WithConfiguration(innerBuilder =>
{
if (payloadFactory == null)
{
throw new ArgumentNullException(nameof(payloadFactory));
}
innerBuilder.WithContentEncoding(Encoding.UTF8);
innerBuilder.WithMediaType("application/json");
innerBuilder.WithConfiguration(s =>
{
s.WithDefiniteContentType(typeof(GraphQLPayload));
s.ContentFactory = () =>
{
var payload = (payloadFactory() ?? string.Empty).Trim().Replace(Environment.NewLine, "\n").Replace("\t", " ");
return(new GraphQLPayload
{
Query = payload,
Variables = s.Items[RelayVariablesKey] as IDictionary <string, object>
});
};
});
});
}
/// <summary>
/// Set up a delegate to create the UserContext for each GraphQL request
/// </summary>
/// <typeparam name="TUserContext"></typeparam>
/// <param name="builder">The GraphQL builder.</param>
/// <param name="creator">A delegate used to create the user context from the <see cref="HttpContext"/>.</param>
/// <returns>The GraphQL builder.</returns>
public static IGraphQLBuilder AddUserContextBuilder <TUserContext>(this IGraphQLBuilder builder, Func <HttpContext, Task <TUserContext> > creator)
where TUserContext : class, IDictionary <string, object>
{
builder.Services.AddSingleton <IUserContextBuilder>(new UserContextBuilder <TUserContext>(creator));
return(builder);
}
public static IGraphQLBuilder AddEntityGraphQueryResolver(this IGraphQLBuilder builder)
{
#region ComparisonExpression
builder.Services.AddSingleton <IComparisonExpressionBuilder, EqualComparisonExpressionBuilder>();
builder.Services.AddSingleton <IComparisonExpressionBuilder, GreaterThanComparisonExpressionBuilder>();
builder.Services.AddSingleton <IComparisonExpressionBuilder, GreaterThanOrEqualComparisonExpressionBuilder>();
builder.Services.AddSingleton <IComparisonExpressionBuilder, LessThanComparisonExpressionBuilder>();
builder.Services.AddSingleton <IComparisonExpressionBuilder, LessThanOrEqualComparisonExpressionBuilder>();
builder.Services.AddSingleton <IComparisonExpressionBuilder, IsNullComparisonExpressionBuilder>();
builder.Services.AddSingleton <IComparisonExpressionBuilder, NotEqualComparisonExpressionBuilder>();
builder.Services.AddSingleton <IComparisonExpressionBuilder, PrefixLikeComparisonExpressionBuilder>();
builder.Services.AddSingleton <IComparisonExpressionBuilder, LikeComparisonExpressionBuilder>();
builder.Services.AddSingleton <IComparisonExpressionBuilder, SuffixLikeComparisonExpressionBuilder>();
builder.Services.TryAddSingleton <IComparisonExpressionFactory, ComparisonExpressionFactory>();
#endregion
builder.Services.AddSingleton <IEntityGraphQueryMiddlewareBuilder, LimitGraphQueryMiddlewareBuilder>();
builder.Services.AddSingleton <IEntityGraphQueryMiddlewareBuilder, OffsetGraphQueryMiddlewareBuilder>();
builder.Services.AddSingleton <IEntityGraphQueryMiddlewareBuilder, OrderByGraphQueryMiddlewareBuilder>();
builder.Services.AddSingleton <IEntityGraphQueryMiddlewareBuilder, PredicateGraphQueryMiddlewareBuilder>();
builder.Services.TryAddScoped <IEntityGraphQueryBuilderFactory, EntityGraphQueryBuilderFactory>();
builder.Services.TryAddScoped <IEntityGraphQueryResolver, EntityGraphQueryResolver>();
return(builder);
}
/// <summary>
/// Scans the specified assembly for classes that implement <see cref="IDIObjectGraphBase{TSource}"/> and
/// registers clr type mappings on the schema between that <see cref="DIObjectGraphType{TDIGraph, TSource}"/>
/// (constructed from that class and its source type), and the source type.
/// Skips classes where the source type is <see cref="object"/>, or where the class is marked with
/// the <see cref="DoNotMapClrTypeAttribute"/>, or where another graph type would be automatically mapped
/// to the specified type, or where a graph type has already been registered to the specified clr type.
/// </summary>
public static IGraphQLBuilder AddDIClrTypeMappings(this IGraphQLBuilder builder, Assembly assembly)
{
var typesAlreadyMapped = new HashSet <Type>(
assembly.GetDefaultClrTypeMappings()
.Where(x => x.GraphType.IsOutputType())
.Select(x => x.ClrType));
var types = assembly.GetTypes()
.Where(x => x.IsClass && !x.IsAbstract && typeof(IDIObjectGraphBase).IsAssignableFrom(x))
.Select <Type, (Type DIGraphType, Type?SourceType)>(x => {
var iface = x.GetInterfaces().FirstOrDefault(x => x.IsGenericType && x.GetGenericTypeDefinition() == typeof(IDIObjectGraphBase <>));
return(x, iface?.GetGenericArguments()[0]);
})
.Where(x => x.SourceType != null && x.SourceType != typeof(object) && !x.DIGraphType.IsDefined(typeof(DoNotMapClrTypeAttribute)) && !typesAlreadyMapped.Contains(x.SourceType))
.Select <(Type DIGraphType, Type?SourceType), (Type ClrType, Type GraphType)>(x => (x.SourceType !, typeof(DIObjectGraphType <,>).MakeGenericType(x.DIGraphType, x.SourceType !)))
.ToList();
if (types.Count == 0)
{
return(builder);
}
builder.ConfigureSchema(schema => {
var existingMappings = new HashSet <Type>(schema.TypeMappings.Where(x => x.graphType.IsOutputType()).Select(x => x.clrType));
foreach (var type in types)
{
if (!existingMappings.Contains(type.ClrType))
{
schema.RegisterTypeMapping(type.ClrType, type.GraphType);
}
}
});
return(builder);
}
public static IGraphQLBuilder AddLibplanetExplorer <T>(this IGraphQLBuilder builder)
where T : IAction, new()
{
builder.Services.AddLibplanetExplorer <T>();
return(builder);
}
/// <summary>
/// Adds the GraphQL authorization.
/// </summary>
/// <param name="builder">The GraphQL builder.</param>
/// <param name="options">An action delegate to configure the provided <see cref="AuthorizationOptions"/>.</param>
/// <returns>Reference to the passed <paramref name="builder"/>.</returns>
public static IGraphQLBuilder AddGraphQLAuthorization(this IGraphQLBuilder builder, Action <AuthorizationOptions> options)
{
builder.Services
.AddHttpContextAccessor()
.AddTransient <IValidationRule, AuthorizationValidationRule>()
#if NETCOREAPP3_0
.AddAuthorizationCore(options);
/// <summary>
/// Registers <see cref="AutoInputObjectGraphType{TSourceType}"/>, <see cref="DIObjectGraphType{TDIGraph}"/> and
/// <see cref="DIObjectGraphType{TDIGraph, TSource}"/> as generic types.
/// </summary>
public static IGraphQLBuilder AddDIGraphTypes(this IGraphQLBuilder builder)
{
builder.TryRegister(typeof(AutoInputObjectGraphType <>), typeof(AutoInputObjectGraphType <>), ServiceLifetime.Transient);
builder.TryRegister(typeof(DIObjectGraphType <>), typeof(DIObjectGraphType <>), ServiceLifetime.Transient);
builder.TryRegister(typeof(DIObjectGraphType <,>), typeof(DIObjectGraphType <,>), ServiceLifetime.Transient);
return(builder);
}
/// <summary>
/// Adds an <see cref="IUserContextBuilder"/> as a singleton.
/// </summary>
/// <typeparam name="TUserContextBuilder">The type of the <see cref="IUserContextBuilder"/> implementation.</typeparam>
/// <param name="builder">The GraphQL builder.</param>
/// <returns>The GraphQL builder.</returns>
public static IGraphQLBuilder AddUserContextBuilder <TUserContextBuilder>(this IGraphQLBuilder builder)
where TUserContextBuilder : class, IUserContextBuilder
{
builder.Services.AddSingleton <IUserContextBuilder, TUserContextBuilder>();
return(builder);
}
/// <inheritdoc cref="AddAutomaticPersistedQueries(IGraphQLBuilder, Action{AutomaticPersistedQueriesCacheOptions})"/>
public static IGraphQLBuilder AddAutomaticPersistedQueries(this IGraphQLBuilder builder, Action <AutomaticPersistedQueriesCacheOptions, IServiceProvider>?action)
{
builder.Services
.Configure(action)
.TryRegister <IConfigureExecution, AutomaticPersistedQueriesExecution>(ServiceLifetime.Singleton, RegistrationCompareMode.ServiceTypeAndImplementationType);
return(builder);
}
public static IGraphQLBuilder AddWebSocketsHttpMiddleware <TSchema, TMiddleware>(this IGraphQLBuilder builder)
where TSchema : ISchema
where TMiddleware : GraphQLWebSocketsMiddleware <TSchema>
{
builder.Services.Register <TMiddleware, TMiddleware>(ServiceLifetime.Singleton);
return(builder);
}
/// <summary>
/// Set up a delegate to create the UserContext for each GraphQL request
/// </summary>
/// <typeparam name="TUserContext"></typeparam>
/// <param name="builder"></param>
/// <param name="creator"></param>
/// <returns></returns>
public static IGraphQLBuilder AddUserContextBuilder <TUserContext>(this IGraphQLBuilder builder, Func <HttpContext, TUserContext> creator)
where TUserContext : class
{
builder.Services.AddSingleton <IUserContextBuilder>(new UserContextBuilder <TUserContext>(creator));
return(builder);
}
public static IGraphQLBuilder AddSelfActivatingSchema <TSchema>(this IGraphQLBuilder builder, ServiceLifetime serviceLifetime = ServiceLifetime.Singleton)
where TSchema : class, ISchema
{
if (serviceLifetime == ServiceLifetime.Transient && typeof(IDisposable).IsAssignableFrom(typeof(TSchema)))
{
// This scenario can cause a memory leak if the schema is requested from the root service provider.
// If it was requested from a scoped provider, then there is no reason to register it as transient.
// See following link:
// https://docs.microsoft.com/en-us/dotnet/core/extensions/dependency-injection-guidelines#disposable-transient-services-captured-by-container
throw new InvalidOperationException("A schema that implements IDisposable should not be registered as a transient service. " +
"See https://docs.microsoft.com/en-us/dotnet/core/extensions/dependency-injection-guidelines#disposable-transient-services-captured-by-container");
}
// Register the service with the DI provider as TSchema, overwriting any existing registration
builder.Register(provider =>
{
var selfActivatingServices = new SelfActivatingServiceProvider(provider);
var schema = ActivatorUtilities.CreateInstance <TSchema>(selfActivatingServices);
return(schema);
}, serviceLifetime);
// Now register the service as ISchema if not already registered.
builder.TryRegister <ISchema>(provider =>
{
var selfActivatingServices = new SelfActivatingServiceProvider(provider);
var schema = ActivatorUtilities.CreateInstance <TSchema>(selfActivatingServices);
return(schema);
}, serviceLifetime);
return(builder);
}
public GenericType(IGraphQLBuilder builder = null)
{
try
{
var typedClass = typeof(T);
var props = typedClass.GetProperties();
foreach (var prop in props)
{
Type propGraphQLType = null;
propGraphQLType = prop.PropertyType.TryConvertToGraphQLType();
if (propGraphQLType != null && GraphQLExtensions.IsExtendedGraphQLType(propGraphQLType))
{
var resolvedType = propGraphQLType;
builder
.GetType()
.GetInterface("IGraphQLBuilder")
.GetMethod("Type")
.MakeGenericMethod(resolvedType)
.Invoke(builder, null);
}
else if (propGraphQLType is null)
{
var resolvedType = propGraphQLType ?? prop.PropertyType;
builder
.GetType()
.GetInterface("IGraphQLBuilder")
.GetMethod("Type")
.MakeGenericMethod(resolvedType)
.Invoke(builder, null);
propGraphQLType = typeof(GenericType <>).MakeGenericType(resolvedType);
if (propGraphQLType is null)
{
throw new InvalidCastException(
$"{prop.Name} was not automatically convertible into a GraphQL type. " +
$"Try explicitly adding this Type through the GraphQL-Core middleware.");
}
propGraphQLType = GraphQLCoreTypeWrapperGenerator.GetDerivedGenericUserType(propGraphQLType);
if (propGraphQLType is null)
{
throw new NotSupportedException(
$"{prop.Name} is a custom type but was not registered through builder. " +
$"Try explicitly adding this Type through the Graph-Core middleware");
}
}
Field(propGraphQLType, prop.Name);
}
}
catch (Exception e)
{
throw new GraphQLCoreTypeException($"An attempt to create a generic type for type {nameof(T)} failed. Refer to inner exception for details", e);
}
}
/// <summary>
/// Add required services for GraphQL web sockets
/// </summary>
public static IGraphQLBuilder AddWebSockets(this IGraphQLBuilder builder)
{
builder.Services
.Register(typeof(IWebSocketConnectionFactory <>), typeof(WebSocketConnectionFactory <>), ServiceLifetime.Transient)
.Register <IOperationMessageListener, LogMessagesListener>(ServiceLifetime.Transient)
.Register <IOperationMessageListener, ProtocolMessageListener>(ServiceLifetime.Transient);
return(builder);
}
/// <summary>
/// Adds a <see cref="IGraphQLRequestDeserializer"/> and a <see cref="IDocumentWriter"/>
/// to the service collection with the provided configuration/settings.
/// </summary>
/// <param name="builder"></param>
/// <param name="configureDeserializerSettings">
/// Action to further configure the request deserializer's settings.
/// Affects reading of the JSON from the HTTP request the middleware processes.
/// </param>
/// <param name="configureSerializerSettings">
/// Action to further configure the response serializer's settings.
/// Affects JSON returned by the middleware.
/// </param>
/// <returns>GraphQL Builder.</returns>
public static IGraphQLBuilder AddNewtonsoftJson(this IGraphQLBuilder builder,
Action <JsonSerializerSettings> configureDeserializerSettings = null,
Action <JsonSerializerSettings> configureSerializerSettings = null)
{
builder.Services.AddSingleton <IGraphQLRequestDeserializer>(p => new GraphQLRequestDeserializer(configureDeserializerSettings ?? (_ => { })));
builder.Services.Replace(ServiceDescriptor.Singleton <IDocumentWriter>(p => new DocumentWriter(configureSerializerSettings ?? (_ => { }), p.GetService <IErrorInfoProvider>() ?? new ErrorInfoProvider())));
return(builder);
}
/// <summary>
/// Add required services for GraphQL web sockets
/// </summary>
/// <param name="builder"></param>
/// <returns></returns>
public static IGraphQLBuilder AddWebSockets(this IGraphQLBuilder builder)
{
builder.Services
.AddTransient(typeof(IWebSocketConnectionFactory <>), typeof(WebSocketConnectionFactory <>))
.AddTransient <IOperationMessageListener, LogMessagesListener>()
.AddTransient <IOperationMessageListener, ProtocolMessageListener>();
return(builder);
}
/// <summary>
/// Provides the ability to configure <see cref="ErrorInfoProviderOptions"/> for the default <see cref="ErrorInfoProvider"/>.
/// Also provides integration with Microsoft.Extensions.Options so the caller may use services.Configure{ErrorInfoProviderOptions}(...)
/// </summary>
/// <param name="builder">GraphQL builder used for GraphQL specific extension methods as 'this' argument.</param>
/// <param name="configureOptions">Action to configure the <see cref="ErrorInfoProviderOptions"/>.</param>
/// <returns>Reference to <paramref name="builder"/>.</returns>
public static IGraphQLBuilder AddErrorInfoProvider(this IGraphQLBuilder builder, Action <ErrorInfoProviderOptions> configureOptions)
{
if (configureOptions == null)
{
throw new ArgumentNullException(nameof(configureOptions));
}
return(builder.AddErrorInfoProvider((opt, _) => configureOptions(opt)));
}
/// <summary>
/// Adds the GraphQL Relay types <see cref="ConnectionType<>"/>, <see cref="EdgeType<>"/>
/// and <see cref="PageInfoType"/>.
/// </summary>
/// <param name="builder">The application builder.</param>
/// <returns>The application builder.</returns>
public static IGraphQLBuilder AddRelayGraphTypes(this IGraphQLBuilder builder)
{
builder
.Services
.AddSingleton(typeof(ConnectionType <>))
.AddSingleton(typeof(EdgeType <>))
.AddSingleton <PageInfoType>();
return(builder);
}
/// <summary>
/// Adds the GraphQL authorization.
/// </summary>
/// <param name="builder">The GraphQL builder.</param>
/// <param name="options">An action delegate to configure the provided <see cref="AuthorizationOptions"/>.</param>
/// <returns>The GraphQL builder.</returns>
public static IGraphQLBuilder AddGraphQLAuthorization(this IGraphQLBuilder builder, Action <AuthorizationOptions> options)
{
builder.Services.TryAddSingleton <IHttpContextAccessor, HttpContextAccessor>();
builder
.Services
.AddTransient <IValidationRule, AuthorizationValidationRule>()
.AddAuthorization(options);
return(builder);
}
public static IServiceCollection AddXCMS(this IServiceCollection services, IGraphQLBuilder graphQlbuilder)
{
graphQlbuilder.AddGraphTypes(typeof(XCMSAnchor));
services.AddSchemaBuilder <ContentSchema>();
services.AddMediatR(typeof(ContentSchema));
return(services);
}
public static TBuilder WithVariable <TBuilder>(this IGraphQLBuilder builder, string name, object value)
where TBuilder : IGraphQLBuilder
{
builder.CreateAndApplyVariables(variables =>
{
variables[name] = value;
});
return((TBuilder)builder);
}
public static IGraphQLBuilder AddPolicyValidation(this IGraphQLBuilder builder)
{
builder.Services
.AddHttpContextAccessor()
.AddTransient <IOperationMessageListener, SubscriptionPrincipalInitializer>()
.AddTransient <IValidationRule, PolicyValidationRule>()
.AddAuthorizationCore();
return(builder);
}
/// <summary>
/// Adds the GraphQL authorization.
/// </summary>
/// <param name="builder">The GraphQL builder.</param>
/// <param name="options">An action delegate to configure the provided <see cref="AuthorizationOptions"/>.</param>
/// <returns>Reference to the passed <paramref name="builder"/>.</returns>
public static IGraphQLBuilder AddGraphQLAuthorization(this IGraphQLBuilder builder, Action <AuthorizationOptions> options)
{
builder.Services.TryAddTransient <IClaimsPrincipalAccessor, DefaultClaimsPrincipalAccessor>();
builder.Services
.AddHttpContextAccessor()
.AddTransient <IValidationRule, AuthorizationValidationRule>()
.AddAuthorizationCore(options);
return(builder);
}
/// <summary>
/// Add all types that implement <seealso cref="IGraphType"/> in the specified assembly
/// </summary>
/// <param name="builder"></param>
/// <param name="assembly"></param>
/// <returns></returns>
public static IGraphQLBuilder AddGraphTypes(this IGraphQLBuilder builder, Assembly assembly)
{
// Register all GraphQL types
foreach (var type in assembly.GetTypes()
.Where(x => !x.IsAbstract && typeof(IGraphType).IsAssignableFrom(x)))
{
builder.Services.TryAddTransient(type);
}
return(builder);
}
public static IGraphQLBuilder AddSquidexWriter(this IGraphQLBuilder builder)
{
builder.Services.AddSingleton <IDocumentWriter>(c =>
{
var serializer = new NewtonsoftJsonSerializer(ConfigureJson(TypeNameHandling.None));
return(new DefaultDocumentWriter(serializer));
});
return(builder);
}
public static IGraphQLBuilder AddEntityGraphQueryTypes(this IGraphQLBuilder builder)
{
builder.Services.TryAddSingleton <OrderBy_Type>();
builder.Services.TryAddSingleton <IntComparisonExpr_Type>();
builder.Services.TryAddSingleton <LongComparisonExpr_Type>();
builder.Services.TryAddSingleton <StringComparisonExpr_Type>();
builder.Services.TryAddSingleton <DecimalComparisonExpr_Type>();
builder.Services.TryAddSingleton <DateTimeComparisonExpr_Type>();
return(builder);
}
public static IGraphQLBuilder AddEntityGraphQueryArguments(this IGraphQLBuilder builder)
{
builder.Services.AddSingleton <IEntityGraphQueryArgumentBuilder, LimitGraphQueryArgumentBuilder>();
builder.Services.AddSingleton <IEntityGraphQueryArgumentBuilder, OffsetGraphQueryArgumentBuilder>();
builder.Services.AddSingleton <IEntityGraphQueryArgumentBuilder, OrderByGraphQueryArgumentBuilder>();
builder.Services.AddSingleton <IEntityGraphQueryArgumentBuilder, PredicateGraphQueryArgumentBuilder>();
builder.Services.TryAddSingleton <IEntityGraphQueryArgumentsBuilder, EntityGraphQueryArgumentsBuilder>();
return(builder);
}
public static IGraphQLBuilder AddEntityGraphQuery(this IGraphQLBuilder builder)
{
builder.Services.TryAddSingleton <IEntityGraphTypeBuilder, EntityGraphTypeBuilder>();
builder.AddEntityGraphQueryTypes();
builder.AddEntityGraphQueryArguments();
builder.AddEntityGraphQueryResolver();
return(builder);
}
public static IGraphQLBuilder AddGraphResolvers(this IGraphQLBuilder builder, Assembly assembly)
{
var types = assembly.GetTypes()
.Where(type => !type.IsAbstract &&
typeof(IDocumentIOResolver).IsAssignableFrom(type));
foreach (var type in types)
{
builder.Services.Add(ServiceDescriptor.Scoped(type, type));
}
return(builder);
}
