CODEWITHSUNDEEP
c#dependency-injectionazure-functionsstructuremap4
ShrnPrmshr
ShrnPrmshr

Reputation: 363

Add structuremap registries into Microsoft.Azure.Functions.Extensions.DependencyInjection

I try to apply DI into Azure Function by reading this blog. The injected service in Azure Function belongs to another project which uses Structuremap for DI. My problem is that I can not add Structuremap registries into Azure Function Startup. Here is an example of Startup class

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

and I tried to write a ContainerConfigurator class (to add those registries)

public static class ContainerConfigurator
{
    public static void Configure(this IServiceCollection services)
    {
        var container = new Container(config =>
        {
            config.Scan(s =>
            {
                s.LookForRegistries();
                s.WithDefaultConventions();
                s.TheCallingAssembly();
            });
            config.Populate(services);
        });

        return container;
    }
}

and here is the Function class

public class FunctionX
{
    private readonly IXService _xService;

    public GetReports(IXService xService)
    {
        _xService = xService;
    }

    [FunctionName("GetX")]
    public async Task<IActionResult> Run(
        [HttpTrigger(AuthorizationLevel.Function, "get", Route = null)] HttpRequest req, ILogger log)
    {
        log.LogInformation("Get x");

        return await Task.FromResult(new OkObjectResult("OK"));
    }
}

when I test the endpoint, I get an error about the issue to resolve the "IXService". I do not know exactly what I miss. Does anyone have any solution?

Upvotes: 0

Views: 293

Answers (1)

Jack Jia
Jack Jia

Reputation: 5549

I think you need to explicitly register your service in startups:

public class Startup : FunctionsStartup
{
    public override void Configure(IFunctionsHostBuilder builder)
    {
        builder.Services.AddScoped<IXService, XService>();
    }
}

Even DI is supported in Azure function, but apparently it is little different from ASP.NET Core.

Upvotes: 0

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