Null Logger is being injected to constructor

[wpearson4]

Hi, my constructor has a dependency on ILogger. The following type of ILogger is being injected {Microsoft.Extensions.Logging.Abstractions.NullLogger}. Currently nothing is logged.

[junalmeida]

Sorry but I don't have enough information to help you out with this. Please provide more information, like your startup code and class that is consuming the ILogger.

[wpearson4]

` public class StartUp : FunctionsStartup { private IConfigurationRoot Configuration { get; set; }

    public override void Configure(IFunctionsHostBuilder builder)
    {
        builder.UseAutofacServiceProviderFactory(ConfigureContainer);
    }

    public override void ConfigureAppConfiguration(IFunctionsConfigurationBuilder builder)
    {
        var connectionString = Environment.GetEnvironmentVariable("AzureAppConfiguration");
        var config = new ConfigurationBuilder().AddAzureAppConfiguration(options =>
            options
                .Connect(connectionString)
                .Select(KeyFilter.Any, LabelFilter.Null)
                .Select(KeyFilter.Any, Environment.GetEnvironmentVariable("environment")
        )).AddEnvironmentVariables().Build();

        Configuration = config;
    }

    private IContainer ConfigureContainer(ContainerBuilder containerBuilder)
    {
        containerBuilder
       .RegisterAssemblyTypes(typeof(StartUp).Assembly)
       .InNamespace(typeof(StartUp).Namespace)
       .AsSelf() // Azure Functions core code resolves a function class by itself.
       .InstancePerTriggerRequest(); // Th
        // Register your services and dependencies here
        containerBuilder.RegisterInstance<IConfiguration>(Configuration);

        containerBuilder.RegisterType<CacheController>()
                .AsSelf()
                .SingleInstance()
                .OnActivating(x => x.Instance.RegisterClient(Configuration["connectionstring:rediscache:hot"], "rtls"));
        containerBuilder.RegisterType<DatabaseController>()
            .AsSelf()
            .SingleInstance()
            .OnActivating(x => x.Instance.RegisterClient(Configuration["connectionstring:mongodb:hot"]));
        containerBuilder.RegisterType<SerializationService>()
            .AsSelf()
            .SingleInstance();

        containerBuilder.RegisterType<BeaconIdentifierService>()
         .AsImplementedInterfaces()
         .SingleInstance();
        ConfigurationHelper.Initialize(Configuration);

        var appContainer = containerBuilder.Build();
        return appContainer;
    }
}`

Partial Class Declaration `namespace TrueSpot.LocationServices.TT521IngestionParser { public class FrameProcessor { private readonly ILogger _logger; private readonly CacheController _redisController; private readonly SerializationService _serializationService; private readonly IBeaconIdentifierService _beaconIdService;

    public FrameProcessor(ILogger logger, CacheController redisController, SerializationService serializationService, IBeaconIdentifierService beaconIdService)
    {
        _logger = logger;
        _redisController = redisController;
        _serializationService = serializationService;
        _beaconIdService = beaconIdService;
    }

    [FunctionName("Function1")]
    public async Task Run([EventHubTrigger("%parser:tt521:eventhubname%", Connection = "connectionstring:eventhub:ingest")] EventData[] events, 
       [ServiceBus("all-obd2-events", Connection = "connectionstring:servicebus:exhaust", EntityType = ServiceBusEntityType.Queue)] IAsyncCollector<ServiceBusMessage> deviceEvents)
    {`

[junalmeida]

What is the namespace of your Startup class?

[wpearson4]

LocationServices.HealthReport

[junalmeida]

So according to your startup code, you are only registering to autofac services that are in the same namespace of Startup itself, but your function lives on a different namespace.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.