MicroJson Library

MicroJson is an ultralight .NET Json serializer/deserializer designed specifically for embedded devices with limited resources. MicroJson excels at performing basic JSON operations with minimal memory and processing overhead, ensuring efficient performance on even the most constrained systems.

This library is ideal for IoT devices and other embedded applications, offering a straightforward API, effortlessly integrate JSON parsing and serialization into IoT projects without compromising on speed or resource consumption.

Usage

public static void Main(string[] args)
{
    var resourceData = LoadResource("menu.json");

    var menuJson = new string(System.Text.Encoding.UTF8.GetChars(resourceData));

    DeserializeTypeSafe(menuJson);
    DeserializeAsHashtable(menuJson);
}

private static void DeserializeTypeSafe(string menuJson)
{
    string testJsonItem = "{\"ScreenX\":290,\"ScreenY\":210,\"RawX\":3341,\"RawY\":3353}";
    var point = MicroJson.Deserialize<CalibrationPoint>(testJsonItem);

    string testJsonArray = "[{\"ScreenX\":30,\"ScreenY\":30,\"RawX\":522,\"RawY\":514},{\"ScreenX\":290,\"ScreenY\":210,\"RawX\":3341,\"RawY\":3353}]";

    var points = MicroJson.Deserialize<CalibrationPoint[]>(testJsonArray);

    var menu = MicroJson.Deserialize<MenuContainer>(menuJson);
}

private static void DeserializeAsHashtable(string menuJson)
{
    var menuData = MicroJson.DeserializeString(menuJson) as Hashtable;

    if (menuData["menu"] == null)
    {
        throw new ArgumentException("JSON root must contain a 'menu' item");
    }

    Console.WriteLine($"Root element is {menuData["menu"]}");

    var items = (ArrayList)menuData["menu"];

    foreach (Hashtable item in items)
    {
        Console.WriteLine($"Found {item["text"]}");
    }
}

private static byte[] LoadResource(string filename)
{
    var assembly = Assembly.GetExecutingAssembly();
    var resourceName = $"MicroJson_Sample.{filename}";

    using Stream stream = assembly.GetManifestResourceStream(resourceName);
    using var ms = new MemoryStream();
    stream.CopyTo(ms);
    return ms.ToArray();
}

Usage​

Usage