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Autofac resolving named service incorrectly


Autofac resolving named service incorrectly

By : vishalproy
Date : November 21 2020, 04:01 AM
may help you . There's a lot to unpack here and may require some back and forth discussion because there's not really enough info, but I'm a little short on time and would like to get you an answer to help you. I may or may not be able to make it back here so if my answer doesn't work it'd be better if you update your question with additional info rather than comment and sit and wait for me.
So.
code :
// You'd get RelationshipMapper
container.Resolve<ICodeMapper>();
// You'd get RelationshipMapper
var f = container.Resolve<Func<ICodeMapper>>();
f();


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Resolving a service in autofac without registering service type

Resolving a service in autofac without registering service type


By : user2456514
Date : March 29 2020, 07:55 AM
I wish this help you In your example, disposing the temporary lifetime scope will dispose the object being returned as well as any of its dependencies; components only live as long as the lifetime scope that they were resolved from.
Are there any known criteria that identifies these types? There is an overload of the AnyConcrete... class's constructor that can specify a filter on what it will resolve. If there are such criteria though then RegisterAssemblyTypes() is almost always a better option.
Autofac dependency resolver passes the same value for parameters when resolving the service

Autofac dependency resolver passes the same value for parameters when resolving the service


By : Jurjen Hartveld
Date : March 29 2020, 07:55 AM
wish of those help I am using Autofac for IoC in ASP .Net MVC 4 app. , Figured it out!
I had to replace this:
code :
var factory = _dependencyResolver.GetService<Func<string, string, string, IContext>>();
IContext context = factory(contextToken, hostUrl, request.Url.Authority);
var context =
    _dependencyResolver.RequestLifetimeScope.Resolve<IContext>(
        new NamedParameter("contextToken", contextToken), 
        new NamedParameter("hostUrl", hostUrl),
        new NamedParameter("appUrl", request.Url.Authority));
Autofac not resolving Type and Named Parameter for ApiController

Autofac not resolving Type and Named Parameter for ApiController


By : Nkumar Patidar
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further There is additional configuration and setup you need to do for WebAPI, beyond what you do for a console application. Take a look at the docs here for instructions: Autofac Web Api Integration
Autofac + MVC5: Resolving a Service's Dependencies

Autofac + MVC5: Resolving a Service's Dependencies


By : Sudeep Gorai
Date : March 29 2020, 07:55 AM
may help you . Ultimately it just comes down to registering the type in the Container. Such as:
code :
var builder = new ContainerBuilder();
builder.RegisterType<Bar>().As<IBar>();
var container = builder.Build();
Specify to Autofac which Named service to resolve

Specify to Autofac which Named service to resolve


By : Cristian Faune
Date : March 29 2020, 07:55 AM
this will help You are violating the Liskov Substitution Principle here (and therefore the SOLID principles). You have one 'abstraction' (i.e. DbContext) but if you inject the readonly version into a consumer that expects the writable, the application will break. This is a strong indication that you are violating LSP.
The LSP dictates that you have different abstractions for each case. This basically means you should inject ReadContext and WriteContext directly. This will immediately solve your registration problem, because you can define your handlers as:
code :
public CommandAHandler(WriteContext context)
public CommandBHandler(ReadContext context)
builder.Register<WriteContext>();
builder.Register<ReadContext>();
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