TTNet.Data 3.3.0

TTNet.Data

A .NET library for The Things Network Data API

Install

Available at NuGet:

dotnet add package TTNet.Data

Usage

Create an instance:

var app = new App("Your app ID");

Listen to events:

app.Connected += (s, e) => Console.WriteLine("Connected");

app.MessageReceived += (s, e) =>
{
    Console.WriteLine(e.DeviceID);
    foreach (var f in e.Message.PayloadFields.EnumerateObject())
        Console.WriteLine($"\t{f.Name}: {f.Value}");

    // Or you can convert it to your data type
    var myObject = e.Message.PayloadFields.ConvertTo<MyClass>();
};

Connect:

var c = await app.Connect(accessKey, region, CancellationToken.None);

Example:

var c = await app.Connect("ttn-account-v2.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", "eu", CancellationToken.None);

You can add or remove events wether connected or disconnected.

Publish messages:

// Raw payload
await app.Publish(deviceID, new byte[] { 0x10, 0xF1 }, port, CancellationToken.None);
// JSON payload
await app.Publish(deviceID, myObject, port, CancellationToken.None);

Managed

Managed mode is also available. The client is started once and will mantain the connection automatically including reconnecting.

Create a managed instance:

var app = new App("Your app ID", true);

Use Start/Stop instead of Connect/Disconnect:

await app.Start(accessKey, region, autoReconnectDelay);

Publish messages:

// Raw payload
await app.Publish(deviceID, new byte[] { 0x10, 0xF1 }, port);
// JSON payload
await app.Publish(deviceID, myObject, port);

JSON Payload

Only properties are converted from and to JSON, and they can be private.

The property name can be overriden with JsonPropertyName attribute.

If JsonIgnore attribute is set, the property will be ignored.

Example:

class MyClass
{
    public bool MyBoolean { get; private set; }

    [JsonPropertyName("my_int")]
    public int MyInt { get; private set; }

    [JsonIgnore]
    public string MyString { get; set; }
}

Result JSON:

{"MyBoolean":false,"my_int":0}