Can I decompress and deserialize a file using streams?

Question

My application serializes an object using Json.Net, compresses the resulting JSON, then saves this to file. Additionally the application can load an object from one of these

Answer 1

For those looking for an idea how to use the extensions from @dbc in uwp apps, I modified the code to this - where the StorageFile is a file you have access to write to.

public static async void SerializeToFileCompressedAsync(object value, StorageFile file, JsonSerializerSettings settings = null)
{
    using (var stream = await file.OpenStreamForWriteAsync())
        SerializeCompressed(value, stream, settings);
}

public static void SerializeCompressed(object value, Stream stream, JsonSerializerSettings settings = null)
{
    using (var compressor = new GZipStream(stream, CompressionMode.Compress))
    using (var writer = new StreamWriter(compressor))
    {
        var serializer = JsonSerializer.CreateDefault(settings);
        serializer.Serialize(writer, value);
    }
}

public static async Task DeserializeFromFileCompressedAsync(StorageFile file, JsonSerializerSettings settings = null)
{
    using (var stream = await file.OpenStreamForReadAsync())
        return DeserializeCompressed(stream, settings);
}

public static T DeserializeCompressed(Stream stream, JsonSerializerSettings settings = null)
{
    using (var compressor = new GZipStream(stream, CompressionMode.Decompress))
    using (var reader = new StreamReader(compressor))
    using (var jsonReader = new JsonTextReader(reader))
    {
        var serializer = JsonSerializer.CreateDefault(settings);
        return serializer.Deserialize(jsonReader);
    }
}