//this supports dependency injection by allowing the passing of any dependencies to this consuming code when it's constructed.
//Since the HomeController now depends on an abstraction defined by the IWeatherForecaster interface, it is now decoupled from changes to the implementation, which gets injected
public HomeController(IWeatherForecaster weatherForecaster, IOptions <FeaturesConfiguration> options)
{
_weatherForecaster = weatherForecaster;
//Once bound, you can inject an instance of IOptions of T into any classes which need access to configuration values.
_featuresConfiguration = options.Value;
}
public override void Configure(IFunctionsHostBuilder builder)
{
IConfiguration configuration = new ConfigurationBuilder()
.SetBasePath(Environment.CurrentDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
IConfigurationSection influxDBConfigurationSection = configuration.GetSection("InfluxDB");
IConfigurationSection featuresConfigurationSection = configuration.GetSection("Features");
IInfluxDBConfiguration influxDBConfiguration = new InfluxDBConfiguration();
IFeaturesConfiguration featuresConfiguration = new FeaturesConfiguration();
influxDBConfigurationSection.Bind(influxDBConfiguration);
featuresConfigurationSection.Bind(featuresConfiguration);
InfluxDBClientOptions influxDBClientOptions = InfluxDBClientOptions.Builder
.CreateNew()
.Url(influxDBConfiguration.Url)
.AuthenticateToken(influxDBConfiguration.Token.ToCharArray())
.Org(influxDBConfiguration.Organisation)
.Bucket(influxDBConfiguration.Bucket)
.Build();
InfluxDBClient influxDBClient = InfluxDBClientFactory.Create(influxDBClientOptions);
ISensorRepository sensorRepository = new SensorRepository(influxDBClient);
builder.Services.AddSingleton <IFeaturesConfiguration>(featuresConfiguration);
builder.Services.AddSingleton <ISensorRepository>(sensorRepository);
builder.Services.AddSensorService();
builder.Services.AddFeatureService();
}
public HomeController(
IWeatherForecaster weatherForecaster,
IOptions <FeaturesConfiguration> featuresConfiguration)
{
_weatherForecaster = weatherForecaster;
_featuresConfiguration = featuresConfiguration.Value;
}
public HomeController(IWeatherForecaster weatherForecaster,
IOptions <FeaturesConfiguration> options,
ILogger <HomeController> logger)
{
_weatherForecaster = weatherForecaster;
_featuresConfiguration = options.Value;
_logger = logger;
}
public IndexModel(
IWeatherForecaster weatherForecaster,
IOptions <FeaturesConfiguration> options,
IHomePageGreetingService greetingService)
{
_weatherForecaster = weatherForecaster;
_greetingService = greetingService;
_featuresConfiguration = options.Value;
}
public HomeController(INameParserService nameParserService,
GuidService guidService,
IOptions <FeaturesConfiguration> options,
ILogger <HomeController> logger)
{
_logger = logger;
_guidService = guidService;
_nameParserService = nameParserService;
_featuresConfiguration = options.Value;
}
public HomeController(IConfiguration configuration,
IOptions <FeaturesConfiguration> featuresConfiguration,
IOptionsSnapshot <FeaturesConfiguration> featuresConfigurationSnapshot,
IOptionsMonitor <FeaturesConfiguration> featuresConfigurationMonitor,
IOptions <FeaturesConfigurationWithSimpleValidation> featuresConfigurationWithSimpleValidation)
{
_configuration = configuration;
_featuresConfiguration = featuresConfiguration.Value;
_featuresConfigurationSnapshot = featuresConfigurationSnapshot.Value;
_featuresConfigurationMonitor = featuresConfigurationMonitor.CurrentValue;
_featuresConfigurationWithSimpleValidation = featuresConfigurationWithSimpleValidation.Value;
}
public HomeController(IWeatherForecaster weatherForecaster,
IOptionsSnapshot <FeaturesConfiguration> options, // If we use IOptionsSnapshot, the configuration registered with scoped not singleton.
//GuidGenerator guidGenerator,
ILogger <HomeController> logger,
IDistributedCache <WeatherResult> cache,
IOptionsMonitor <SecondFeaturesConfiguration> secondFeatures)
{
_weatherForecaster = weatherForecaster;
_featuresConfiguration = options.Value;
// _guidGenerator = guidGenerator;
_logger = logger;
_cache = cache;
_secondFeatures = secondFeatures.CurrentValue;
// IOptionsMonitor also provide us OnChange() method.
secondFeatures.OnChange(config =>
{
_secondFeatures = config;
_logger.LogInformation("The greeting configuration has been updated.");
});
}
public WeatherForecastController(IWeatherForecaster weatherForecaster, IOptions <FeaturesConfiguration> options)
{
_weatherForecaster = weatherForecaster;
_featuresConfiguration = options.Value;
}
