OpenApiSchema System.Text.Json (De)Serialization #2299
Description
Is your feature request related to a problem? Please describe.
Default System.Text.Json Serialization of OpenApiJsonSchema is verbose (complete) and unsatisfying.
Describe the solution you'd like
A simple way to fix it, probably via a JsonConverter, either by default or to configure on AddMVC json options.
Describe alternatives you've considered
Otherwise, OpenApiSchema could support direct serialization to a JsonWriter:
Additional context
Turns out I did it in my projects, and I also just really wanted to know if this was appropriate, or I missed something available
internal class SchemaConverter : System.Text.Json.Serialization.JsonConverter<OpenApiSchema>
{
private static readonly ConcurrentDictionary<int, JsonSerializerOptions> _jsonSerializerCache = new();
public override OpenApiSchema Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
{
var correctedOptions = _jsonSerializerCache.GetOrAdd(options.GetHashCode(), _ =>
{
var optionsCopy = new JsonSerializerOptions(options);
optionsCopy.Converters.Remove(options.Converters.First(c => c is SchemaConverter));
return optionsCopy;
});
return JsonSerializer.Deserialize<OpenApiSchema>(ref reader, correctedOptions)!;
}
public override void Write(Utf8JsonWriter writer, OpenApiSchema value, JsonSerializerOptions options)
{
using var memoryStream = new MemoryStream();
using (var textWriter = new StreamWriter(memoryStream, leaveOpen: true))
{
value.SerializeAsV31(new OpenApiJsonWriter(textWriter));
textWriter.Flush();
}
memoryStream.Position = 0;
writer.WriteRawValue(memoryStream.ToArray());
}
}