ByteArrayConverter.cs

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namespace System.Text.Json.Serialization.Converters;
 
internal sealed class ByteArrayConverter : JsonConverter<byte[]>
{
    public override byte[] Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
    {
        if (reader.TokenType == JsonTokenType.Null)
        {
            return null;
        }
        return reader.GetBytesFromBase64();
    }
 
    public override void Write(Utf8JsonWriter writer, byte[] value, JsonSerializerOptions options)
    {
        if (value == null)
        {
            writer.WriteNullValue();
        }
        else
        {
            writer.WriteBase64StringValue(value);
        }
    }
}