38 lines
1007 B
C#
38 lines
1007 B
C#
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using HotChocolate;
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using HotChocolate.Resolvers;
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Threading.Tasks;
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namespace PoweredSoft.CQRS.GraphQL.HotChocolate
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{
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public class MutationParamRequiredMiddleware
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{
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private readonly FieldDelegate _next;
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public MutationParamRequiredMiddleware(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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context.Result = ErrorBuilder.New()
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.SetMessage("mutation argument is required")
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.SetCode("400")
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.SetPath(context.Path)
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.AddLocation(context.Selection.SyntaxNode)
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.Build();
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return;
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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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