Nest DotNet SDK(Elton.Nest)

(Unofficial) .NET Standard SDK for Nest's REST and Streaming APIs. Monitoring and control Nest Cam, Thermostat and Protect using C#.

Documentation

This unofficial .net library is very similar to Android-SDK, but you can happily use it on Windows, UWP, Xamarin.iOS, Xamarin.Android, Xamarin.macOS etc.

.NET Core console example: https://github.com/eltonfan/nest-dotnet-sdk/tree/master/examples/NestMonitoringConsole

Examples are also available in this README below.

Install

NuGet: PM> Install-Package Elton.Nest

Quickstart

Setup your Nest instance, preparing it for Authorization / Authentication.

// TODO:

Authorization / Authentication

Before we can get started making requests to the Nest API, we must first get authorization from the user. This authorization is in the form of an access token.

Acquiring an access token

We must launch an OAuth 2.0 flow in order to get an access token initially. Then later, we can re-use that token.

You need to implement OAuth flow to getting the authorization code, because different platforms have different ways. NestMonitoringConsole is an example of Windows platform.

// A request code you can verify later.
string AUTH_TOKEN_REQUEST_CODE = "123";

// Set the configuration values.
var nestConfig = new NestConfig(
    clientId: "client-id",
    clientSecret: "client-secret",
    redirectUrl: "https://redirect-url",
    state: AUTH_TOKEN_REQUEST_CODE);
var oauth2 = new Oauth2FlowHandler(nestConfig);

// Launch the auth flow if you don't already have a token.
var requestUrl = oauth2.GetClientCodeUrl();

//TODO: GET requestUrl in webbrowser. different way on different platform
// If authorized, you can receive resulting url that contains the authorization code.
string resultingUrl = null;
var authorizationCode = oauth2.ParseAuthorizationCode(resultingUrl);

//receive the token
var token = oauth2.CreateToken(authorizationCode);
// Save the token to a safe place here so it can be re-used later.

Re-using an existing access token

If you already have an access token, you can authenticate using that immediately.

var nest = new NestClient();

// Get the token string from your safe place.
var token = "abc123";

// Authenticate with an existing token.
nest.StartWithToken(token);

nest.WhenValueChanged()
    .Subscribe(args =>
    {
        // Handle exceptions here.
    });
nest.WhenAuthRevoked()
    .Subscribe(args =>
    {
        // Your previously authenticated connection has become unauthenticated.
        // Recommendation: Relaunch an auth flow with nest.launchAuthFlow().
    });

Get values and listen for changes

Listen for changes to everything

This includes all devices, structures and metadata.

//Subscribe to event
var subscription = nest.WhenAnyUpdated().Subscribe(update =>
{
    var metadata = update.Metadata;
    var cameras = update.Cameras;
    var smokeCOAlarms = update.SmokeCOAlarms;
    var thermostats = update.Thermostats;
    var structures = update.Structures;

    // Handle updates here.
});

//Unsubscribe from event
subscription.Dispose();

Listen for changes to all devices

This includes all thermostats, smoke alarms and cameras.

//Subscribe to event
var subscription = nest.WhenDeviceUpdated().Subscribe(update =>
{
    var cameras = update.Cameras;
    var smokeCOAlarms = update.SmokeCOAlarms;
    var thermostats = update.Thermostats;

    // Handle updates here.
});

//Unsubscribe from event
subscription.Dispose();

Listen for changes to specific device types

var listSubscriptions = new List<IDisposable>();
IDisposable subscription;

//All thermostats:
subscription = nest.WhenThermostatUpdated().Subscribe(thermostats =>
{
    // Handle thermostat update...
});
listSubscriptions.Add(subscription);

//All smoke alarms:
subscription = nest.WhenSmokeCOAlarmUpdated().Subscribe(thermostats =>
{
    // Handle smoke+co alarm update...
});
listSubscriptions.Add(subscription);

//All cameras:
subscription = nest.WhenCameraUpdated().Subscribe(thermostats =>
{
    // Handle camera update...
});
listSubscriptions.Add(subscription);

//Unsubscribe from events
foreach (var item in listSubscriptions)
    subscription.Dispose();

Listen to changes to all structures

//Subscribe to event
var subscription = nest.WhenStructureUpdated().Subscribe(structures =>
{
    // Handle structure update...
});

//Unsubscribe from event
subscription.Dispose();

Listen to metadata changes

This includes the access token and client version.

//Subscribe to event
var subscription = nest.WhenMetadataUpdated().Subscribe(data =>
{
    // Handle metadata update... do action.
});

//Unsubscribe from event
subscription.Dispose();

Set values and update devices / structures

Updating values on devices and structures is easy. Here are a few examples.

Thermostat example

See the full list of possible Thermostat methods here.

// Get id from Thermostat#getDeviceId
String thermostatId = thermostat.DeviceId;

// The temperature in Farhenheit to set. (Note: type long)
long newTempF = 75;

// Set thermostat target temp (in degrees F).
nest.Thermostats.SetTargetTemperatureF(thermostatId, newTempF);

float newTempC = 23.5F;

//Set thermostat target temp, in half degrees Celsius
nest.Thermostats.SetTargetTemperatureC(thermostatId, newTempC);

Thermostat example with callback

See the full list of possible Thermostat methods here.

// Get id from Thermostat#getDeviceId
string thermostatId = myThermostat.DeviceId;

// The temperature in Celsius to set. (Note: type double)
double newTempC = 22.5;

// Set thermostat target temp (in degrees C) with an optional success callback.
nest.Thermostats.SetTargetTemperatureC(thermostatId, newTempC, new Callback()
{
    OnSuccess = () =>
    {
        // The update to the thermostat succeeded.
    },
    OnFailure = (ex) =>
    {
        // The update to the thermostat failed.
    },
});

Camera example

See the full list of possible Camera methods here.

// Get id from Camera#getDeviceId.
string camId = myCamera.DeviceId;

// Set camera to start streaming.
nest.Cameras.SetIsStreaming(camId, true);

Camera example with callback

See the full list of possible Camera methods here.

// Get id from Camera#getDeviceId.
string camId = myCamera.DeviceId;

// Set camera to start streaming with an optional success callback.
nest.Cameras.SetIsStreaming(camId, true, new Callback()
{
    OnSuccess = () =>
    {
        // The update to the camera succeeded.
    },
    OnFailure = (ex) =>
    {
        // The update to the camera failed.
    },
});

License

Apache 2.0 - See LICENSE for more information.