C#•2y ago

❔ .net core 6 IConfiguration Injection

Hi there - i'm going nuts try to solve this simple problem. I have a .net Core 6 WebApplication builder based app, and all i'm trying to do is get to IConfiguration in my service classes. From what i've read, .net 6 should automatically add its IConfiguration service to the build services, and therefore my AddService<MyClass> constructor whcih has public MyClass(IConfiguration configuration) in it throws "The service implementation object was not initialized or is not available." and it's not hitting breakpoints. Remove IConfiguration from teh constructor, it works it's like either a) IConfiguration is not injected into the services for the app builder, or b) MyClass is not subject to being DI'd by asp.net. argh

18 Replies

superbobfaceOP•2y ago

if I inspect app just before calling Run() "{[{Name = IConfiguration FullName = Microsoft.Extensions.Configuration.IConfiguration}, {Method = {System.Object <CreateServiceAccessor>b__1(Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope)}}]}" this is in the realizedServics list

phaseshift•2y ago

Did you somehow use a different namespace for IConfig param in MyClass?

superbobfaceOP•2y ago

well i dont think so let me double check Microsoft.Extensions.Configuration.IConfiguration thats what VS thinks it is hovering over the parameter to the service class constructor

phaseshift•2y ago

That's weird. Do you have a Startup class?

superbobfaceOP•2y ago

no, just Program.cs magic net6 stuff that freaks me out 🙂

var builder = WebApplication.CreateBuilder(args);

builder.Logging.AddConsole();

builder.WebHost.ConfigureKestrel((context, options) =>
{
    options.AllowSynchronousIO = true;    
});

// Add WSDL support
builder.Services.AddServiceModelServices().AddServiceModelMetadata();
builder.Services.AddSingleton<IServiceBehavior, UseRequestHeadersForMetadataAddressBehavior>();
builder.Services.AddOptions();
var app = builder.Build();

// Configure an explicit none credential type for WSHttpBinding as it defaults to Windows which requires extra configuration in ASP.NET
var myWSHttpBinding = new WSHttpBinding(SecurityMode.Transport);
myWSHttpBinding.Security.Transport.ClientCredentialType = HttpClientCredentialType.None;

app.UseServiceModel(builder =>
{
    builder.AddService<EchoService>((serviceOptions) => { })    
    .AddService<IntefleCSService>((serviceOptions) => { serviceOptions.DebugBehavior.IncludeExceptionDetailInFaults = true; })
    // Add a BasicHttpBinding at a specific endpoint
    .AddServiceEndpoint<EchoService, IEchoService>(new BasicHttpBinding(), "/EchoService/")
    // Add a WSHttpBinding with Transport Security for TLS
    //.AddServiceEndpoint<EchoService, IEchoService>(myWSHttpBinding, "/EchoService/WSHttps")
    // Add a BasicHttpBinding at a specific endpoint
    .AddServiceEndpoint<IntefleCSService, IIntefleCSService>(new BasicHttpBinding(), "/IntefleCSService/");
    // Add a WSHttpBinding with Transport Security for TLS
    //.AddServiceEndpoint<IntefleCSService, IIntefleCSService>(myWSHttpBinding, "/IntefleCSService/WSHttps");
});

var serviceMetadataBehavior = app.Services.GetRequiredService<CoreWCF.Description.ServiceMetadataBehavior>();
serviceMetadataBehavior.HttpGetEnabled = true;

app.Run();

var builder = WebApplication.CreateBuilder(args);

builder.Logging.AddConsole();

builder.WebHost.ConfigureKestrel((context, options) =>
{
    options.AllowSynchronousIO = true;    
});

// Add WSDL support
builder.Services.AddServiceModelServices().AddServiceModelMetadata();
builder.Services.AddSingleton<IServiceBehavior, UseRequestHeadersForMetadataAddressBehavior>();
builder.Services.AddOptions();
var app = builder.Build();

// Configure an explicit none credential type for WSHttpBinding as it defaults to Windows which requires extra configuration in ASP.NET
var myWSHttpBinding = new WSHttpBinding(SecurityMode.Transport);
myWSHttpBinding.Security.Transport.ClientCredentialType = HttpClientCredentialType.None;

app.UseServiceModel(builder =>
{
    builder.AddService<EchoService>((serviceOptions) => { })    
    .AddService<IntefleCSService>((serviceOptions) => { serviceOptions.DebugBehavior.IncludeExceptionDetailInFaults = true; })
    // Add a BasicHttpBinding at a specific endpoint
    .AddServiceEndpoint<EchoService, IEchoService>(new BasicHttpBinding(), "/EchoService/")
    // Add a WSHttpBinding with Transport Security for TLS
    //.AddServiceEndpoint<EchoService, IEchoService>(myWSHttpBinding, "/EchoService/WSHttps")
    // Add a BasicHttpBinding at a specific endpoint
    .AddServiceEndpoint<IntefleCSService, IIntefleCSService>(new BasicHttpBinding(), "/IntefleCSService/");
    // Add a WSHttpBinding with Transport Security for TLS
    //.AddServiceEndpoint<IntefleCSService, IIntefleCSService>(myWSHttpBinding, "/IntefleCSService/WSHttps");
});

var serviceMetadataBehavior = app.Services.GetRequiredService<CoreWCF.Description.ServiceMetadataBehavior>();
serviceMetadataBehavior.HttpGetEnabled = true;

app.Run();

its this IntefleCSService that can't be created public IntefleCSService(IConfiguration configuration) { _config = configuration; }

phaseshift•2y ago

Idk, thought it should be free. Maybe something peculiar with WCF core

Mayor McCheese•2y ago

Not that this solves your problem, but in many circles it's considered bad practice to scatter iconfiguration across your app.

superbobfaceOP•2y ago

fair, instead pass options into the service contstructor? Or reference the orgiinal app class?

Mayor McCheese•2y ago

Options is good That doesn't solve your problem What packages do you have

superbobfaceOP•2y ago

CoreWCF.Http, CoreWCF.Primites and System.Data.SqlClietn Microsoft.AspNETCore.App and Microsoft.NetCore.App

Mayor McCheese•2y ago

Have you tried createdefaultbuilder? I don't recall all the differences I don't do much with aspnet, they both handle config iirc but I could wrong

superbobfaceOP•2y ago

starst with this var builder = WebApplication.CreateBuilder(args);

Mayor McCheese•2y ago

Ugh I'll need to look not on my phone 😦 Do you have a repo?

superbobfaceOP•2y ago

lol dont worry, I've gotta head out shortly, nah its privvy

Mayor McCheese•2y ago

superbobfaceOP•2y ago

thanks for looking tho

Mayor McCheese•2y ago

I'll look on a bit

Accord•2y ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ .net core 6 IConfiguration Injection