47 lines
1.5 KiB
C#
47 lines
1.5 KiB
C#
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using HotChocolate;
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using HotChocolate.Resolvers;
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using Newtonsoft.Json;
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using PoweredSoft.CQRS.GraphQL.Abstractions;
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namespace PoweredSoft.CQRS.GraphQL.HotChocolate
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{
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public class QueryValidationMiddleware
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{
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private readonly FieldDelegate _next;
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public QueryValidationMiddleware(FieldDelegate next)
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{
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_next = next;
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}
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public async Task InvokeAsync(IMiddlewareContext context)
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{
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var queryArgument = context.ArgumentValue<object>("params");
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if (queryArgument != null)
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{
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var service = context.Service<IGraphQLValidationService>();
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var result = await service.ValidateObjectAsync(queryArgument, context.RequestAborted);
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if (!result.IsValid)
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{
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var eb = ErrorBuilder.New()
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.SetMessage("There are some validations errors")
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.SetCode("ValidationError")
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.SetPath(context.Path)
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.AddLocation(context.Selection.SyntaxNode);
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foreach (var error in result.Errors)
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eb.SetExtension(error.Field, error.Errors);
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context.Result = eb.Build();
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return;
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}
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}
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await _next.Invoke(context);
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}
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}
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}
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