How to Deserialize a Stream of Concatenated JSON Objects in JSON.NET?

Parse JSON object stream using JSON.NET

When deserializing a concatenated stream of JSON objects without delimiters, the problem is how to handle it correctly using JSON.NET.

The attempted solution involves using a stream reader, a JSON text reader and a custom loop to deserialize the stream into an IEnumerable. However, this method encountered an exception indicating an unexpected 'EndObject' tag.

To correct this, some modifications need to be made to the loop:

<code class="language-csharp">public IEnumerable<TResult> ReadJson<TResult>(Stream stream)
{
    var serializer = new JsonSerializer();

    using (var reader = new StreamReader(stream))
    using (var jsonReader = new JsonTextReader(reader))
    {
        jsonReader.SupportMultipleContent = true;

        while (jsonReader.Read())
        {
            yield return serializer.Deserialize<TResult>(jsonReader);
        }
    }
}</code>

It is important to note that the returned IEnumerable must be iterated over while the stream remains open:

<code class="language-csharp">using (var stream = /* some stream */)
{
    IEnumerable<MyClass> result = ReadJson<MyClass>(stream);

    foreach (var item in result)
    {
        Console.WriteLine(item.MyProperty);
    }
}</code>

This technology is on the dotnetfiddle website (https://www.php.cn/link/a3b1c195e3033e5086eb7482c0942e4a.

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