HADotNet

A simple, straighforward .NET Standard library for the Home Assistant API.

Features

• .NET Standard 2.0 cross-platform library
• DI-friendly client initialization (suitable for ASP.NET Core)
• Home Assistant data is represented by strongly-typed, commented model classes

Supported Home Assistant APIs

• Root API (Verifies the HA API is responding)
• Automation API
• Google Calendar API (Unofficial)
• Discovery API
• Entity API
• Error Log API
• Events API
• History API
• Logbook API
• Services API
• States API
• Supervisor API (Supervisor-based installations only)
• Template API

Getting Started

From NuGet (Recommended)

Install HADotNet.Core from NuGet:

Install-Package HADotNet.Core

From Source

Clone this repo and either include the HADotNet.Core library in your project, or build the project and include the DLL as a reference.

Examples

Initializing The Client Factory

The ClientFactory class is reponsible for initializing all other clients in a reusable way, so you only have to define your instance URL and API key once.

To initialize the ClientFactory, pass in your base Home Assistant URL and a long-lived access token that you created on your profile page.

ClientFactory.Initialize("https://my-home-assistant-url/", "AbCdEf0123456789...");

Getting Home Assistant's Current Configuration

Get a ConfigClient and then call GetConfiguration():

var configClient = ClientFactory.GetClient<ConfigClient>();
var config = await configClient.GetConfiguration();
// config.LocationName: "Home"
// config.Version: 0.96.1

Retrieving All Entities

Get an EntityClient and then call GetEntities():

var entityClient = ClientFactory.GetClient<EntityClient>();
var entityList = await entityClient.GetEntities();

Retrieving Entities By Domain

Get an EntityClient and then call GetEntities("domainName"):

var entityClient = ClientFactory.GetClient<EntityClient>();
var filteredEntityList = await entityClient.GetEntities("light");

Retrieving All Entity States

Get a StatesClient and then call GetStates():

var statesClient = ClientFactory.GetClient<StatesClient>();
var allMyStates = await statesClient.GetStates();

Retrieving State By Entity

Get a StatesClient and then call GetState(entity):

var statesClient = ClientFactory.GetClient<StatesClient>();
var state = await statesClient.GetState("sun.sun");
// state.EntityId: "sun.sun"
// state.State: "below_horizon"

Retrieving All Service Definitions

Get a ServiceClient and then call GetServices():

var serviceClient = ClientFactory.GetClient<ServiceClient>();
var services = await serviceClient.GetServices();

Retrieving Calendar Events

Get a CalendarClient and then call GetEvents(calEntity):

var calClient = ClientFactory.GetClient<CalendarClient>();
var myEvents = await calClient.GetEvents("calendar.my_calendar");

Calling a Service

Get a ServiceClient and then call CallService():

var serviceClient = ClientFactory.GetClient<ServiceClient>();

var resultingState = await serviceClient.CallService("homeassistant", "restart");
// Or
var resultingState = await serviceClient.CallService("light", "turn_on", new { entity_id = "light.my_light" });
// Or
var resultingState = await serviceClient.CallService("light.turn_on", new { entity_id = "light.my_light" });
// Or
var resultingState = await serviceClient.CallService("light.turn_on", @"{""entity_id"":""light.my_light""}");

Retrieving History for an Entity

Get a HistoryClient and then call GetHistory(entityId):

var historyClient = ClientFactory.GetClient<HistoryClient>();
var historyList = await historyClient.GetHistory("sun.sun");

// historyList.EntityId: "sun.sun"
// historyList[0].State: "above_horizon"
// historyList[0].LastUpdated: 2019-07-25 07:25:00
// historyList[1].State: "below_horizon"
// historyList[1].LastUpdated: 2019-07-25 20:06:00

Rendering a Template

Get a TemplateClient and then call RenderTemplate(templateBody):

var templateClient = ClientFactory.GetClient<TemplateClient>();
var myRenderedTemplate = await templateClient.RenderTemplate("The sun is {{ states('sun.sun') }}");

// myRenderedTemplate: The sun is above_horizon

Testing

To run the unit tests, you must first set two environment variables:

• HADotNet:Tests:Instance = https://my-home-assistant-url/
• HADotNet:Tests:ApiKey = AbCdEf0123456789...

Collaborating

Fork the project, make some changes, and submit a pull request!

Be sure to follow the same coding style (generally, the standard Microsoft C# coding guidelines) and comment all publicly-visible types and members with XMLDoc comments.