CreditCheckerWJ.cs

internal class Program
{
    private static void Main()
    {        
        var dashboardConnectionString = ConfigurationManager
            .AppSettings["AzureWebJobsDashboard"];
        var storageConnectionString = ConfigurationManager
            .AppSettings["AzureWebJobsStorage"];

        // initialise the DI container
        var svcCollection = new ServiceCollection();
        // add all dependencies
        svcCollection.AddScoped<IHttpMessageHandlerFactory,
            MockHttpMessageHandlerFactory>();

        svcCollection.AddScoped<ICreditCheckFilter,
            CreditCheckFilter>();

        svcCollection.AddScoped<IPipe<EnrichedLoanRequest>,
            QueueBackedLoanQuoteSubmissionPipe>();

        svcCollection.AddSingleton(_ =>
        SimpleQueueHelperFactory.Create(
            "credit-checked-loan-requests",
            storageConnectionString));

        // this line is crucial for all the dependencies
        // to be resolved correctly.
        svcCollection.AddTransient<Functions>();

        var config = new JobHostConfiguration();
        config.DashboardConnectionString = dashboardConnectionString;
        config.StorageConnectionString = storageConnectionString;
        // tell the config to use the custom IJobActivator
        // implementation with the IServiceProvider DI container
        config.JobActivator = new MyActivator(
            svcCollection.BuildServiceProvider());

        var host = new JobHost(config);
        // The following code ensures that the WebJob will be running continuously
        host.RunAndBlock();
    }
}