.netcore Azure functions startup class is not called

user_12681943 0
Viewed 2080

My Azure function doesn't calls the startup class localy. When running the project, my brekpoint doesn't hit the DependencyRegistrations.Register function.

Package Microsoft.Azure.Functions.Extensions is correctly installed

using Microsoft.Azure.Functions.Extensions.DependencyInjection;

[assembly: FunctionsStartup(typeof(MyNamespace.Startup))]

namespace MyNamespace
{
    public class Startup : FunctionsStartup
    {
        public override void Configure(IFunctionsHostBuilder builder)
        {
            DependencyRegistrations.Register(builder.Services);
        }
    }
}

enter image description here

Why is the startup class not called?

azure-functions .net-core azure
2 Answers

Two things I'm not seeing in your code snippet.

1- [assembly: FunctionsStartup(typeof(MyNamespace.Startup))]

2- Are you sure the nuget package was properly installed? (Microsoft.Azure.Functions.Extensions)

The final startup code should look like the following:

using Microsoft.Azure.Functions.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection;

[assembly: FunctionsStartup(typeof(MyNamespace.Startup))]

namespace MyNamespace
{
    public class Startup : FunctionsStartup
    {
        public override void Configure(IFunctionsHostBuilder builder)
        {
            builder.Services.AddHttpClient();

            builder.Services.AddSingleton<IMyService>((s) => {
                return new MyService();
            });

            builder.Services.AddSingleton<ILoggerProvider, MyLoggerProvider>();
        }
    }
}
user_13845390

I face the same issue, i have to remove my project from my solution and recreate an new to have the statup to be called...

I suspect a version mistake somewhere

user_50342090
Related