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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using Microsoft.AspNetCore.Http.Json;
using Microsoft.Extensions.Options;
namespace Microsoft.AspNetCore.Http;
/// <summary>
/// Adds the ProblemDetailsJsonContext to the current JsonSerializerOptions.
///
/// This allows for consistent serialization behavior for ProblemDetails regardless if
/// the default reflection-based serializer is used or not. And makes it trim/NativeAOT compatible.
/// </summary>
internal sealed class ProblemDetailsJsonOptionsSetup : IConfigureOptions<JsonOptions>
{
public void Configure(JsonOptions options)
{
// Always insert the ProblemDetailsJsonContext to the beginning of the chain at the time
// this Configure is invoked. This JsonTypeInfoResolver will be before the default reflection-based resolver,
// and before any other resolvers currently added.
// If apps need to customize ProblemDetails serialization, they can prepend a custom ProblemDetails resolver
// to the chain in an IConfigureOptions<JsonOptions> registered after the call to AddProblemDetails().
options.SerializerOptions.TypeInfoResolverChain.Insert(0, new ProblemDetailsJsonContext());
}
}
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