Tibber SDK.NET (beta)

Package for accessing Tibber API.

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Installation

Using nuget package manager:

Install-Package Tibber.Sdk -Version 0.5.3-beta

Authorization

You must have Tibber account to access our API. Access token can be generated at https://developer.tibber.com.

Usage

using Tibber.Sdk;

static async Task GetDataFromTibber(string accessToken)
{
    // Please set user agent so we can track different client implementations
    var userAgent = new ProductInfoHeaderValue("My-home-automation-system", "1.2");

    var client = new TibberApiClient(accessToken, userAgent);

    var basicData = await client.GetBasicData();
    var homeId = basicData.Data.Viewer.Homes.First().Id.Value;
    var consumption = await client.GetHomeConsumption(homeId, EnergyResolution.Monthly);

    var customQueryBuilder =
        new TibberQueryBuilder()
            .WithAllScalarFields()
            .WithViewer(
                new ViewerQueryBuilder()
                    .WithAllScalarFields()
                    .WithAccountType()
                    .WithHome(
                        new HomeQueryBuilder()
                            .WithAllScalarFields()
                            .WithAddress(new AddressQueryBuilder().WithAllFields())
                            .WithCurrentSubscription(
                                new SubscriptionQueryBuilder()
                                    .WithAllScalarFields()
                                    .WithSubscriber(new LegalEntityQueryBuilder().WithAllFields())
                                    .WithPriceInfo(new PriceInfoQueryBuilder().WithCurrent(new PriceQueryBuilder().WithAllFields()))
                            )
                            .WithOwner(new LegalEntityQueryBuilder().WithAllFields())
                            .WithFeatures(new HomeFeaturesQueryBuilder().WithAllFields())
                            .WithMeteringPointData(new MeteringPointDataQueryBuilder().WithAllFields()),
                        homeId
                    )
            );

    var customQuery = customQueryBuilder.Build(); // produces plain GraphQL query text
    var result = await client.Query(customQuery);
}

Extension methods

It's good practice to define custom queries as extension methods, either of root TibberQueryBuilder or any child subquery builder. It helps to reduce code redundancy. Example:

public static class QueryBuilderExtensions
{
    /// <summary>
    /// Builds a query for home consumption.
    /// </summary>
    /// <param name="builder"></param>
    /// <param name="homeId"></param>
    /// <param name="resolution"></param>
    /// <param name="lastEntries">how many last entries to fetch</param>
    /// <returns></returns>
    public static TibberQueryBuilder WithHomeConsumption(this TibberQueryBuilder builder, Guid homeId, EnergyResolution resolution, int lastEntries) =>
        builder.WithAllScalarFields()
            .WithViewer(
                new ViewerQueryBuilder()
                    .WithHome(
                        new HomeQueryBuilder().WithConsumption(resolution, lastEntries),
                        homeId
                    )
            );

    /// <summary>
    /// Builds a query for home consumption.
    /// </summary>
    /// <param name="homeQueryBuilder"></param>
    /// <param name="resolution"></param>
    /// <param name="lastEntries">how many last entries to fetch</param>
    /// <returns></returns>
    public static HomeQueryBuilder WithConsumption(this HomeQueryBuilder homeQueryBuilder, EnergyResolution resolution, int lastEntries) =>
        homeQueryBuilder.WithConsumption(
            new HomeConsumptionConnectionQueryBuilder().WithNodes(new ConsumptionQueryBuilder().WithAllFields()),
            resolution,
            last: lastEntries);
}

Usage:

var query = new TibberQueryBuilder().WithHomeConsumption(homeId, EnergyResolution.Monthly, 12).Build();
await client.Query(query);

Real-time measurement usage

You must have active Tibber Pulse or Watty device at your home to access real-time measurements. basicData.Data.Viewer.Home.Features.RealTimeConsumptionEnabled must return true.

Sample observer implementation:

public class RealTimeMeasurementObserver : IObserver<RealTimeMeasurement>
{
    public void OnCompleted() => Console.WriteLine("Real time measurement stream has been terminated. ");
    public void OnError(Exception error) => Console.WriteLine($"An error occured: {error}");
    public void OnNext(RealTimeMeasurement value) =>
        Console.WriteLine($"{value.Timestamp} - power: {value.Power:N0} W (average: {value.AveragePower:N0} W); consumption since last midnight: {value.AccumulatedConsumption:N3} kWh; cost since last midnight: {value.AccumulatedCost:N2} {value.Currency}");
}

Listener usage:

// Initialize
var userAgent = new ProductInfoHeaderValue("My-home-automation-system", "1.2");
var client = new TibberApiClient(accessToken, userAgent);
var homeId = Guid.Parse("c70dcbe5-4485-4821-933d-a8a86452737b");
var listener = await client.StartRealTimeMeasurementListener(homeId);
listener.Subscribe(new RealTimeMeasurementObserver());

// Listen for a bit
await Task.Delay(TimeSpan.FromSeconds(600));

Console.WriteLine("Stop listening");

// Stop listening
await client.StopRealTimeMeasurementListener(homeId);

Sample output:

2018-09-28 16:53:20 +02:00 - power: 3 200 W (average: 1 678 W); consumption since last midnight: 28,338 kWh; cost since last midnight: 13,92 NOK
2018-09-28 16:53:22 +02:00 - power: 3 195 W (average: 1 678 W); consumption since last midnight: 28,340 kWh; cost since last midnight: 13,92 NOK
2018-09-28 16:53:24 +02:00 - power: 3 197 W (average: 1 678 W); consumption since last midnight: 28,342 kWh; cost since last midnight: 13,93 NOK

Generating classes using schema introspection

// Install nuget https://github.com/Husqvik/GraphQlClientGenerator
var schema = await GraphQlGenerator.RetrieveSchema(HttpMethod.Get, "https://api.tibber.com/v1-beta/gql");
var configuration = new GraphQlGeneratorConfiguration { TargetNamespace = "Tibber.Sdk" };
configuration.CustomClassNameMapping.Add("Consumption", "ConsumptionEntry");
configuration.CustomClassNameMapping.Add("Production", "ProductionEntry");
configuration.CustomClassNameMapping.Add("RootMutation", "TibberMutation");
configuration.CustomClassNameMapping.Add("Query", "Tibber");
configuration.CustomClassNameMapping.Add("RootSubscription", "TibberApiSubscription");
var generator = new GraphQlGenerator(configuration);
var builder = new StringBuilder();
using var writer = new StringWriter(builder);
var generationContext = new SingleFileGenerationContext(schema, writer) { LogMessage = Console.WriteLine };
generator.Generate(generationContext);
var csharpCode = builder.ToString();

Publishing nuget

• Update version number in project file and Readme
• Run release build: dotnet build -c Release src/Tibber.Sdk/Tibber.Sdk.csproj
• Export version as a variable: export VERSION=0.5.3-beta
• Export your NuGet API key as an environment variable: export NUGET_API_KEY=your-key-here
• Publish nuget: dotnet nuget push src/Tibber.Sdk/bin/Release/Tibber.Sdk.$VERSION.nupkg --api-key $NUGET_API_KEY --source https://api.nuget.org/v3/index.json