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[FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor  #92076

Closed
#92082
Closed
[FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor #92076
#92082
Assignees
benjaminpetit
Labels
area-Extensions-DependencyInjectionbug
Milestone
8.0.0

Description

@nitish-kaushik
nitish-kaushik
opened on Sep 13, 2023

Is there an existing issue for this?

  • I have searched the existing issues

Describe the bug

I am trying the new Support for keyed services in minimal APIs, MVC, and SignalR feature in Asp.Net Core Web API Controller. The dependency works fine when I resolve them directly in the action method of the controller but throws an exception if resolve it in the controller constructor.

Here is my code:

public interface IEmployee
{
string GetMessage();
}

public class Employee : IEmployee
{
public string GetMessage()
{
return "Hello from Employee";
}
}

public class TempEmployee : IEmployee
{
public string GetMessage()
{
return "Hello from Temp Employee";
}
}

And this is how I have registered them in the program.cs class.

builder.Services.AddKeyedSingleton<IEmployee, Employee>("employee");
builder.Services.AddKeyedSingleton<IEmployee, TempEmployee>("tempEmployee");

Here is the code from the Controller:

This works fine if resolving the dependency directly in the method

[HttpGet("temp")]
public ActionResult GetTempEmployee([FromKeyedServices("tempEmployee")] IEmployee tempEmployee)
{
return Ok(tempEmployee.GetMessage());
}

But If I try to inject this dependency in the constructor then get the error:

[ApiController]
[Route("[controller]")]
public class EmployeeController : ControllerBase
{
private readonly IEmployee tempEmployee;
public EmployeeController([FromKeyedServices("tempEmployee")] IEmployee _tempEmployee)
{
tempEmployee = _tempEmployee;
}
[HttpGet("temp")]
public ActionResult GetTempEmployee()
{
return Ok(tempEmployee.GetMessage());
}
}

Error:

System.InvalidOperationException: Unable to resolve service for type 'WebApplication5.IEmployee' while attempting to activate 'WebApplication5.Controllers.EmployeeController'.
at Microsoft.Extensions.DependencyInjection.ActivatorUtilities.ThrowHelperUnableToResolveService(Type type, Type requiredBy)
at lambda_method3(Closure, IServiceProvider, Object[])
at Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider.<>c__DisplayClass6_0.<CreateControllerFactory>g__CreateController|0(ControllerContext controllerContext)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
--- End of stack trace from previous location ---
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)
HEADERS
=======
Accept: */*
Host: localhost:7212
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9,hi;q=0.8
Referer: https://localhost:7212/swagger/index.html
sec-ch-ua: "Chromium";v="116", "Not)A;Brand";v="24", "Google Chrome";v="116"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
sec-fetch-site: same-origin
sec-fetch-mode: cors
sec-fetch-dest: empty

My System Setup

Microsoft Visual Studio Enterprise 2022 (64-bit)
Preview Version 17.8.0 Preview 1.0

Windows:
Edition Windows 11 Home Single Language
Version 22H2
OS build 22621.2134
Experience Windows Feature Experience Pack 1000.22659.1000.0

Output form dotnet --info command

C:\Users\Nitish>dotnet --info
.NET SDK:
Version: 8.0.100-rc.1.23455.8
Commit: e14caf947f

Runtime Environment:
OS Name: Windows
OS Version: 10.0.22621
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\

.NET workloads installed:
There are no installed workloads to display.

Host:
Version: 8.0.0-rc.1.23419.4
Architecture: x64
Commit: 9295993
RID: win-x64

.NET SDKs installed:
6.0.101 [C:\Program Files\dotnet\sdk]
7.0.102 [C:\Program Files\dotnet\sdk]
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
x86 [C:\Program Files (x86)\dotnet]
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

Expected Behavior

The Keyed services support should work in the constructor too.

Steps To Reproduce

No response

Exceptions (if any)

No response

.NET Version

8.0.100-rc.1.23455.8

Anything else?

dotnet --info

.NET SDK:
Version: 8.0.100-rc.1.23455.8
Commit: e14caf947f

Runtime Environment:
OS Name: Windows
OS Version: 10.0.22621
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\

.NET workloads installed:
There are no installed workloads to display.

Host:
Version: 8.0.0-rc.1.23419.4
Architecture: x64
Commit: 9295993
RID: win-x64

.NET SDKs installed:
6.0.101 [C:\Program Files\dotnet\sdk]
7.0.102 [C:\Program Files\dotnet\sdk]
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
x86 [C:\Program Files (x86)\dotnet]
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

Metadata

Metadata

Assignees

Labels

area-Extensions-DependencyInjectionbug

Type

No type

Projects

No projects

    Milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions

    , 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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function addCopyButtons() {
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btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
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}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
[FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor · Issue #92076 · dotnet/runtime · GitHub
    Skip to content
    [FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor  #92076
    Closed
    #92082
    Closed
    [FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor #92076
    #92082
    Assignees
    benjaminpetit
    Labels
    area-Extensions-DependencyInjectionbug
    Milestone
    8.0.0
    Description
    @nitish-kaushik
    nitish-kaushik
    opened on Sep 13, 2023
    Is there an existing issue for this?
    •  I have searched the existing issues
    Describe the bug
    I am trying the new Support for keyed services in minimal APIs, MVC, and SignalR feature in Asp.Net Core Web API Controller. The dependency works fine when I resolve them directly in the action method of the controller but throws an exception if resolve it in the controller constructor.
    Here is my code:
    public interface IEmployee
{
string GetMessage();
}

    public class Employee : IEmployee
{
public string GetMessage()
{
return "Hello from Employee";
}
}

    public class TempEmployee : IEmployee
{
public string GetMessage()
{
return "Hello from Temp Employee";
}
}

    And this is how I have registered them in the program.cs class.
    builder.Services.AddKeyedSingleton<IEmployee, Employee>("employee");
builder.Services.AddKeyedSingleton<IEmployee, TempEmployee>("tempEmployee");

    Here is the code from the Controller:
    This works fine if resolving the dependency directly in the method
    [HttpGet("temp")]
public ActionResult GetTempEmployee([FromKeyedServices("tempEmployee")] IEmployee tempEmployee)
{
return Ok(tempEmployee.GetMessage());
}

    But If I try to inject this dependency in the constructor then get the error:
    [ApiController]
[Route("[controller]")]
public class EmployeeController : ControllerBase
{
private readonly IEmployee tempEmployee;
public EmployeeController([FromKeyedServices("tempEmployee")] IEmployee _tempEmployee)
{
tempEmployee = _tempEmployee;
}
[HttpGet("temp")]
public ActionResult GetTempEmployee()
{
return Ok(tempEmployee.GetMessage());
}
}

    Error:
    System.InvalidOperationException: Unable to resolve service for type 'WebApplication5.IEmployee' while attempting to activate 'WebApplication5.Controllers.EmployeeController'.
at Microsoft.Extensions.DependencyInjection.ActivatorUtilities.ThrowHelperUnableToResolveService(Type type, Type requiredBy)
at lambda_method3(Closure, IServiceProvider, Object[])
at Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider.<>c__DisplayClass6_0.<CreateControllerFactory>g__CreateController|0(ControllerContext controllerContext)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
--- End of stack trace from previous location ---
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)
HEADERS
=======
Accept: */*
Host: localhost:7212
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9,hi;q=0.8
Referer: https://localhost:7212/swagger/index.html
sec-ch-ua: "Chromium";v="116", "Not)A;Brand";v="24", "Google Chrome";v="116"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
sec-fetch-site: same-origin
sec-fetch-mode: cors
sec-fetch-dest: empty

    My System Setup
    Microsoft Visual Studio Enterprise 2022 (64-bit)
    
Preview Version 17.8.0 Preview 1.0
    Windows:
    
Edition Windows 11 Home Single Language
    
Version 22H2
    
OS build	22621.2134
    
Experience Windows Feature Experience Pack 1000.22659.1000.0
    Output form dotnet --info command
    C:\Users\Nitish>dotnet --info
    
.NET SDK:
    
Version: 8.0.100-rc.1.23455.8
    
Commit: e14caf947f
    Runtime Environment:
    
OS Name: Windows
    
OS Version: 10.0.22621
    
OS Platform: Windows
    
RID: win-x64
    
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\
    .NET workloads installed:
    
There are no installed workloads to display.
    Host:
    
Version: 8.0.0-rc.1.23419.4
    
Architecture: x64
    
Commit: 9295993
    
RID: win-x64
    .NET SDKs installed:
    
6.0.101 [C:\Program Files\dotnet\sdk]
    
7.0.102 [C:\Program Files\dotnet\sdk]
    
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
    
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]
    .NET runtimes installed:
    
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
    
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
    
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
    
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
    
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
    
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
    
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
    
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
    
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
    
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
    
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
    
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
    
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
    
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
    
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
    
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
    
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
    
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
    
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
    Other architectures found:
    
x86 [C:\Program Files (x86)\dotnet]
    
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
    Environment variables:
    
Not set
    global.json file:
    
Not found
    Learn more:
    https://aka.ms/dotnet/info
    Download .NET:
    https://aka.ms/dotnet/download
    Expected Behavior
    The Keyed services support should work in the constructor too.
    Steps To Reproduce
    No response
    Exceptions (if any)
    No response
    .NET Version
    8.0.100-rc.1.23455.8
    Anything else?
    dotnet --info
    .NET SDK:
    
Version: 8.0.100-rc.1.23455.8
    
Commit: e14caf947f
    Runtime Environment:
    
OS Name: Windows
    
OS Version: 10.0.22621
    
OS Platform: Windows
    
RID: win-x64
    
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\
    .NET workloads installed:
    
There are no installed workloads to display.
    Host:
    
Version: 8.0.0-rc.1.23419.4
    
Architecture: x64
    
Commit: 9295993
    
RID: win-x64
    .NET SDKs installed:
    
6.0.101 [C:\Program Files\dotnet\sdk]
    
7.0.102 [C:\Program Files\dotnet\sdk]
    
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
    
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]
    .NET runtimes installed:
    
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
    
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
    
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
    
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
    
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
    
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
    
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
    
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
    
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
    
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
    
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
    
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
    
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
    
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
    
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
    
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
    
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
    
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
    
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
    Other architectures found:
    
x86 [C:\Program Files (x86)\dotnet]
    
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
    Environment variables:
    
Not set
    global.json file:
    
Not found
    Learn more:
    https://aka.ms/dotnet/info
    Download .NET:
    https://aka.ms/dotnet/download
    Metadata
    Metadata
    Assignees
    Labels
    area-Extensions-DependencyInjectionbug
    Type
    No type
    Projects
    No projects
      Milestone
      Relationships
      None yet
      Development
      No branches or pull requests
      Issue actions
      
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
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';
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try {
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var __re = new RegExp('^' + ".*" + '
[FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor · Issue #92076 · dotnet/runtime · GitHub
      Skip to content
      [FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor  #92076
      Closed
      #92082
      Closed
      [FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor #92076
      #92082
      Assignees
      benjaminpetit
      Labels
      area-Extensions-DependencyInjectionbug
      Milestone
      8.0.0
      Description
      @nitish-kaushik
      nitish-kaushik
      opened on Sep 13, 2023
      Is there an existing issue for this?
      •  I have searched the existing issues
      Describe the bug
      I am trying the new Support for keyed services in minimal APIs, MVC, and SignalR feature in Asp.Net Core Web API Controller. The dependency works fine when I resolve them directly in the action method of the controller but throws an exception if resolve it in the controller constructor.
      Here is my code:
      public interface IEmployee
{
string GetMessage();
}

      public class Employee : IEmployee
{
public string GetMessage()
{
return "Hello from Employee";
}
}

      public class TempEmployee : IEmployee
{
public string GetMessage()
{
return "Hello from Temp Employee";
}
}

      And this is how I have registered them in the program.cs class.
      builder.Services.AddKeyedSingleton<IEmployee, Employee>("employee");
builder.Services.AddKeyedSingleton<IEmployee, TempEmployee>("tempEmployee");

      Here is the code from the Controller:
      This works fine if resolving the dependency directly in the method
      [HttpGet("temp")]
public ActionResult GetTempEmployee([FromKeyedServices("tempEmployee")] IEmployee tempEmployee)
{
return Ok(tempEmployee.GetMessage());
}

      But If I try to inject this dependency in the constructor then get the error:
      [ApiController]
[Route("[controller]")]
public class EmployeeController : ControllerBase
{
private readonly IEmployee tempEmployee;
public EmployeeController([FromKeyedServices("tempEmployee")] IEmployee _tempEmployee)
{
tempEmployee = _tempEmployee;
}
[HttpGet("temp")]
public ActionResult GetTempEmployee()
{
return Ok(tempEmployee.GetMessage());
}
}

      Error:
      System.InvalidOperationException: Unable to resolve service for type 'WebApplication5.IEmployee' while attempting to activate 'WebApplication5.Controllers.EmployeeController'.
at Microsoft.Extensions.DependencyInjection.ActivatorUtilities.ThrowHelperUnableToResolveService(Type type, Type requiredBy)
at lambda_method3(Closure, IServiceProvider, Object[])
at Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider.<>c__DisplayClass6_0.<CreateControllerFactory>g__CreateController|0(ControllerContext controllerContext)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
--- End of stack trace from previous location ---
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)
HEADERS
=======
Accept: */*
Host: localhost:7212
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9,hi;q=0.8
Referer: https://localhost:7212/swagger/index.html
sec-ch-ua: "Chromium";v="116", "Not)A;Brand";v="24", "Google Chrome";v="116"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
sec-fetch-site: same-origin
sec-fetch-mode: cors
sec-fetch-dest: empty

      My System Setup
      Microsoft Visual Studio Enterprise 2022 (64-bit)
      
Preview Version 17.8.0 Preview 1.0
      Windows:
      
Edition Windows 11 Home Single Language
      
Version 22H2
      
OS build	22621.2134
      
Experience Windows Feature Experience Pack 1000.22659.1000.0
      Output form dotnet --info command
      C:\Users\Nitish>dotnet --info
      
.NET SDK:
      
Version: 8.0.100-rc.1.23455.8
      
Commit: e14caf947f
      Runtime Environment:
      
OS Name: Windows
      
OS Version: 10.0.22621
      
OS Platform: Windows
      
RID: win-x64
      
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\
      .NET workloads installed:
      
There are no installed workloads to display.
      Host:
      
Version: 8.0.0-rc.1.23419.4
      
Architecture: x64
      
Commit: 9295993
      
RID: win-x64
      .NET SDKs installed:
      
6.0.101 [C:\Program Files\dotnet\sdk]
      
7.0.102 [C:\Program Files\dotnet\sdk]
      
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
      
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]
      .NET runtimes installed:
      
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
      
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
      
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
      
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
      
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
      
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
      
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
      
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
      
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
      
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
      
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
      
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
      Other architectures found:
      
x86 [C:\Program Files (x86)\dotnet]
      
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
      Environment variables:
      
Not set
      global.json file:
      
Not found
      Learn more:
      https://aka.ms/dotnet/info
      Download .NET:
      https://aka.ms/dotnet/download
      Expected Behavior
      The Keyed services support should work in the constructor too.
      Steps To Reproduce
      No response
      Exceptions (if any)
      No response
      .NET Version
      8.0.100-rc.1.23455.8
      Anything else?
      dotnet --info
      .NET SDK:
      
Version: 8.0.100-rc.1.23455.8
      
Commit: e14caf947f
      Runtime Environment:
      
OS Name: Windows
      
OS Version: 10.0.22621
      
OS Platform: Windows
      
RID: win-x64
      
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\
      .NET workloads installed:
      
There are no installed workloads to display.
      Host:
      
Version: 8.0.0-rc.1.23419.4
      
Architecture: x64
      
Commit: 9295993
      
RID: win-x64
      .NET SDKs installed:
      
6.0.101 [C:\Program Files\dotnet\sdk]
      
7.0.102 [C:\Program Files\dotnet\sdk]
      
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
      
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]
      .NET runtimes installed:
      
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
      
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
      
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
      
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
      
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
      
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
      
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
      
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
      
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
      
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
      
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
      
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
      
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
      Other architectures found:
      
x86 [C:\Program Files (x86)\dotnet]
      
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
      Environment variables:
      
Not set
      global.json file:
      
Not found
      Learn more:
      https://aka.ms/dotnet/info
      Download .NET:
      https://aka.ms/dotnet/download
      Metadata
      Metadata
      Assignees
      Labels
      area-Extensions-DependencyInjectionbug
      Type
      No type
      Projects
      No projects
        Milestone
        Relationships
        None yet
        Development
        No branches or pull requests
        Issue actions
        
, 'i');
if (__m === '*' || __re.test(location.href)) {
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frag.appendChild(document.createTextNode(part));
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var span = document.createElement('span');
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var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
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mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
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observer.observe(document.body, { childList: true, subtree: true });
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} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor · Issue #92076 · dotnet/runtime · GitHub
        Skip to content
        [FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor  #92076
        Closed
        #92082
        Closed
        [FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor #92076
        #92082
        Assignees
        benjaminpetit
        Labels
        area-Extensions-DependencyInjectionbug
        Milestone
        8.0.0
        Description
        @nitish-kaushik
        nitish-kaushik
        opened on Sep 13, 2023
        Is there an existing issue for this?
        •  I have searched the existing issues
        Describe the bug
        I am trying the new Support for keyed services in minimal APIs, MVC, and SignalR feature in Asp.Net Core Web API Controller. The dependency works fine when I resolve them directly in the action method of the controller but throws an exception if resolve it in the controller constructor.
        Here is my code:
        public interface IEmployee
{
string GetMessage();
}

        public class Employee : IEmployee
{
public string GetMessage()
{
return "Hello from Employee";
}
}

        public class TempEmployee : IEmployee
{
public string GetMessage()
{
return "Hello from Temp Employee";
}
}

        And this is how I have registered them in the program.cs class.
        builder.Services.AddKeyedSingleton<IEmployee, Employee>("employee");
builder.Services.AddKeyedSingleton<IEmployee, TempEmployee>("tempEmployee");

        Here is the code from the Controller:
        This works fine if resolving the dependency directly in the method
        [HttpGet("temp")]
public ActionResult GetTempEmployee([FromKeyedServices("tempEmployee")] IEmployee tempEmployee)
{
return Ok(tempEmployee.GetMessage());
}

        But If I try to inject this dependency in the constructor then get the error:
        [ApiController]
[Route("[controller]")]
public class EmployeeController : ControllerBase
{
private readonly IEmployee tempEmployee;
public EmployeeController([FromKeyedServices("tempEmployee")] IEmployee _tempEmployee)
{
tempEmployee = _tempEmployee;
}
[HttpGet("temp")]
public ActionResult GetTempEmployee()
{
return Ok(tempEmployee.GetMessage());
}
}

        Error:
        System.InvalidOperationException: Unable to resolve service for type 'WebApplication5.IEmployee' while attempting to activate 'WebApplication5.Controllers.EmployeeController'.
at Microsoft.Extensions.DependencyInjection.ActivatorUtilities.ThrowHelperUnableToResolveService(Type type, Type requiredBy)
at lambda_method3(Closure, IServiceProvider, Object[])
at Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider.<>c__DisplayClass6_0.<CreateControllerFactory>g__CreateController|0(ControllerContext controllerContext)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
--- End of stack trace from previous location ---
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)
HEADERS
=======
Accept: */*
Host: localhost:7212
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9,hi;q=0.8
Referer: https://localhost:7212/swagger/index.html
sec-ch-ua: "Chromium";v="116", "Not)A;Brand";v="24", "Google Chrome";v="116"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
sec-fetch-site: same-origin
sec-fetch-mode: cors
sec-fetch-dest: empty

        My System Setup
        Microsoft Visual Studio Enterprise 2022 (64-bit)
        
Preview Version 17.8.0 Preview 1.0
        Windows:
        
Edition Windows 11 Home Single Language
        
Version 22H2
        
OS build	22621.2134
        
Experience Windows Feature Experience Pack 1000.22659.1000.0
        Output form dotnet --info command
        C:\Users\Nitish>dotnet --info
        
.NET SDK:
        
Version: 8.0.100-rc.1.23455.8
        
Commit: e14caf947f
        Runtime Environment:
        
OS Name: Windows
        
OS Version: 10.0.22621
        
OS Platform: Windows
        
RID: win-x64
        
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\
        .NET workloads installed:
        
There are no installed workloads to display.
        Host:
        
Version: 8.0.0-rc.1.23419.4
        
Architecture: x64
        
Commit: 9295993
        
RID: win-x64
        .NET SDKs installed:
        
6.0.101 [C:\Program Files\dotnet\sdk]
        
7.0.102 [C:\Program Files\dotnet\sdk]
        
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
        
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]
        .NET runtimes installed:
        
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
        
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
        
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
        
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
        
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
        
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
        
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
        
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
        
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
        
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
        
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
        
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
        
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
        
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
        
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
        
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
        
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
        
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
        
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
        Other architectures found:
        
x86 [C:\Program Files (x86)\dotnet]
        
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
        Environment variables:
        
Not set
        global.json file:
        
Not found
        Learn more:
        https://aka.ms/dotnet/info
        Download .NET:
        https://aka.ms/dotnet/download
        Expected Behavior
        The Keyed services support should work in the constructor too.
        Steps To Reproduce
        No response
        Exceptions (if any)
        No response
        .NET Version
        8.0.100-rc.1.23455.8
        Anything else?
        dotnet --info
        .NET SDK:
        
Version: 8.0.100-rc.1.23455.8
        
Commit: e14caf947f
        Runtime Environment:
        
OS Name: Windows
        
OS Version: 10.0.22621
        
OS Platform: Windows
        
RID: win-x64
        
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\
        .NET workloads installed:
        
There are no installed workloads to display.
        Host:
        
Version: 8.0.0-rc.1.23419.4
        
Architecture: x64
        
Commit: 9295993
        
RID: win-x64
        .NET SDKs installed:
        
6.0.101 [C:\Program Files\dotnet\sdk]
        
7.0.102 [C:\Program Files\dotnet\sdk]
        
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
        
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]
        .NET runtimes installed:
        
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
        
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
        
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
        
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
        
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
        
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
        
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
        
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
        
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
        
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
        
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
        
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
        
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
        
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
        
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
        
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
        
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
        
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
        
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
        Other architectures found:
        
x86 [C:\Program Files (x86)\dotnet]
        
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
        Environment variables:
        
Not set
        global.json file:
        
Not found
        Learn more:
        https://aka.ms/dotnet/info
        Download .NET:
        https://aka.ms/dotnet/download
        Metadata
        Metadata
        Assignees
        Labels
        area-Extensions-DependencyInjectionbug
        Type
        No type
        Projects
        No projects
          Milestone
          Relationships
          None yet
          Development
          No branches or pull requests
          Issue actions
          
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
[FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor · Issue #92076 · dotnet/runtime · GitHub
          Skip to content
          [FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor  #92076
          Closed
          #92082
          Closed
          [FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor #92076
          #92082
          Assignees
          benjaminpetit
          Labels
          area-Extensions-DependencyInjectionbug
          Milestone
          8.0.0
          Description
          @nitish-kaushik
          nitish-kaushik
          opened on Sep 13, 2023
          Is there an existing issue for this?
          •  I have searched the existing issues
          Describe the bug
          I am trying the new Support for keyed services in minimal APIs, MVC, and SignalR feature in Asp.Net Core Web API Controller. The dependency works fine when I resolve them directly in the action method of the controller but throws an exception if resolve it in the controller constructor.
          Here is my code:
          public interface IEmployee
{
string GetMessage();
}

          public class Employee : IEmployee
{
public string GetMessage()
{
return "Hello from Employee";
}
}

          public class TempEmployee : IEmployee
{
public string GetMessage()
{
return "Hello from Temp Employee";
}
}

          And this is how I have registered them in the program.cs class.
          builder.Services.AddKeyedSingleton<IEmployee, Employee>("employee");
builder.Services.AddKeyedSingleton<IEmployee, TempEmployee>("tempEmployee");

          Here is the code from the Controller:
          This works fine if resolving the dependency directly in the method
          [HttpGet("temp")]
public ActionResult GetTempEmployee([FromKeyedServices("tempEmployee")] IEmployee tempEmployee)
{
return Ok(tempEmployee.GetMessage());
}

          But If I try to inject this dependency in the constructor then get the error:
          [ApiController]
[Route("[controller]")]
public class EmployeeController : ControllerBase
{
private readonly IEmployee tempEmployee;
public EmployeeController([FromKeyedServices("tempEmployee")] IEmployee _tempEmployee)
{
tempEmployee = _tempEmployee;
}
[HttpGet("temp")]
public ActionResult GetTempEmployee()
{
return Ok(tempEmployee.GetMessage());
}
}

          Error:
          System.InvalidOperationException: Unable to resolve service for type 'WebApplication5.IEmployee' while attempting to activate 'WebApplication5.Controllers.EmployeeController'.
at Microsoft.Extensions.DependencyInjection.ActivatorUtilities.ThrowHelperUnableToResolveService(Type type, Type requiredBy)
at lambda_method3(Closure, IServiceProvider, Object[])
at Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider.<>c__DisplayClass6_0.<CreateControllerFactory>g__CreateController|0(ControllerContext controllerContext)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
--- End of stack trace from previous location ---
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)
HEADERS
=======
Accept: */*
Host: localhost:7212
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9,hi;q=0.8
Referer: https://localhost:7212/swagger/index.html
sec-ch-ua: "Chromium";v="116", "Not)A;Brand";v="24", "Google Chrome";v="116"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
sec-fetch-site: same-origin
sec-fetch-mode: cors
sec-fetch-dest: empty

          My System Setup
          Microsoft Visual Studio Enterprise 2022 (64-bit)
          
Preview Version 17.8.0 Preview 1.0
          Windows:
          
Edition Windows 11 Home Single Language
          
Version 22H2
          
OS build	22621.2134
          
Experience Windows Feature Experience Pack 1000.22659.1000.0
          Output form dotnet --info command
          C:\Users\Nitish>dotnet --info
          
.NET SDK:
          
Version: 8.0.100-rc.1.23455.8
          
Commit: e14caf947f
          Runtime Environment:
          
OS Name: Windows
          
OS Version: 10.0.22621
          
OS Platform: Windows
          
RID: win-x64
          
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\
          .NET workloads installed:
          
There are no installed workloads to display.
          Host:
          
Version: 8.0.0-rc.1.23419.4
          
Architecture: x64
          
Commit: 9295993
          
RID: win-x64
          .NET SDKs installed:
          
6.0.101 [C:\Program Files\dotnet\sdk]
          
7.0.102 [C:\Program Files\dotnet\sdk]
          
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
          
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]
          .NET runtimes installed:
          
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
          
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
          
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
          
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
          
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
          
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
          
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
          
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
          
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
          
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
          
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
          
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
          
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
          
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
          
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
          
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
          
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
          
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
          
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
          Other architectures found:
          
x86 [C:\Program Files (x86)\dotnet]
          
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
          Environment variables:
          
Not set
          global.json file:
          
Not found
          Learn more:
          https://aka.ms/dotnet/info
          Download .NET:
          https://aka.ms/dotnet/download
          Expected Behavior
          The Keyed services support should work in the constructor too.
          Steps To Reproduce
          No response
          Exceptions (if any)
          No response
          .NET Version
          8.0.100-rc.1.23455.8
          Anything else?
          dotnet --info
          .NET SDK:
          
Version: 8.0.100-rc.1.23455.8
          
Commit: e14caf947f
          Runtime Environment:
          
OS Name: Windows
          
OS Version: 10.0.22621
          
OS Platform: Windows
          
RID: win-x64
          
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\
          .NET workloads installed:
          
There are no installed workloads to display.
          Host:
          
Version: 8.0.0-rc.1.23419.4
          
Architecture: x64
          
Commit: 9295993
          
RID: win-x64
          .NET SDKs installed:
          
6.0.101 [C:\Program Files\dotnet\sdk]
          
7.0.102 [C:\Program Files\dotnet\sdk]
          
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
          
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]
          .NET runtimes installed:
          
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
          
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
          
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
          
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
          
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
          
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
          
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
          
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
          
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
          
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
          
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
          
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
          
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
          
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
          
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
          
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
          
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
          
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
          
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
          Other architectures found:
          
x86 [C:\Program Files (x86)\dotnet]
          
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
          Environment variables:
          
Not set
          global.json file:
          
Not found
          Learn more:
          https://aka.ms/dotnet/info
          Download .NET:
          https://aka.ms/dotnet/download
          Metadata
          Metadata
          Assignees
          Labels
          area-Extensions-DependencyInjectionbug
          Type
          No type
          Projects
          No projects
            Milestone
            Relationships
            None yet
            Development
            No branches or pull requests
            Issue actions
            
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor · Issue #92076 · dotnet/runtime · GitHub
            Skip to content
            [FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor  #92076
            Closed
            #92082
            Closed
            [FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor #92076
            #92082
            Assignees
            benjaminpetit
            Labels
            area-Extensions-DependencyInjectionbug
            Milestone
            8.0.0
            Description
            @nitish-kaushik
            nitish-kaushik
            opened on Sep 13, 2023
            Is there an existing issue for this?
            •  I have searched the existing issues
            Describe the bug
            I am trying the new Support for keyed services in minimal APIs, MVC, and SignalR feature in Asp.Net Core Web API Controller. The dependency works fine when I resolve them directly in the action method of the controller but throws an exception if resolve it in the controller constructor.
            Here is my code:
            public interface IEmployee
{
string GetMessage();
}

            public class Employee : IEmployee
{
public string GetMessage()
{
return "Hello from Employee";
}
}

            public class TempEmployee : IEmployee
{
public string GetMessage()
{
return "Hello from Temp Employee";
}
}

            And this is how I have registered them in the program.cs class.
            builder.Services.AddKeyedSingleton<IEmployee, Employee>("employee");
builder.Services.AddKeyedSingleton<IEmployee, TempEmployee>("tempEmployee");

            Here is the code from the Controller:
            This works fine if resolving the dependency directly in the method
            [HttpGet("temp")]
public ActionResult GetTempEmployee([FromKeyedServices("tempEmployee")] IEmployee tempEmployee)
{
return Ok(tempEmployee.GetMessage());
}

            But If I try to inject this dependency in the constructor then get the error:
            [ApiController]
[Route("[controller]")]
public class EmployeeController : ControllerBase
{
private readonly IEmployee tempEmployee;
public EmployeeController([FromKeyedServices("tempEmployee")] IEmployee _tempEmployee)
{
tempEmployee = _tempEmployee;
}
[HttpGet("temp")]
public ActionResult GetTempEmployee()
{
return Ok(tempEmployee.GetMessage());
}
}

            Error:
            System.InvalidOperationException: Unable to resolve service for type 'WebApplication5.IEmployee' while attempting to activate 'WebApplication5.Controllers.EmployeeController'.
at Microsoft.Extensions.DependencyInjection.ActivatorUtilities.ThrowHelperUnableToResolveService(Type type, Type requiredBy)
at lambda_method3(Closure, IServiceProvider, Object[])
at Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider.<>c__DisplayClass6_0.<CreateControllerFactory>g__CreateController|0(ControllerContext controllerContext)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
--- End of stack trace from previous location ---
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)
HEADERS
=======
Accept: */*
Host: localhost:7212
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9,hi;q=0.8
Referer: https://localhost:7212/swagger/index.html
sec-ch-ua: "Chromium";v="116", "Not)A;Brand";v="24", "Google Chrome";v="116"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
sec-fetch-site: same-origin
sec-fetch-mode: cors
sec-fetch-dest: empty

            My System Setup
            Microsoft Visual Studio Enterprise 2022 (64-bit)
            
Preview Version 17.8.0 Preview 1.0
            Windows:
            
Edition Windows 11 Home Single Language
            
Version 22H2
            
OS build	22621.2134
            
Experience Windows Feature Experience Pack 1000.22659.1000.0
            Output form dotnet --info command
            C:\Users\Nitish>dotnet --info
            
.NET SDK:
            
Version: 8.0.100-rc.1.23455.8
            
Commit: e14caf947f
            Runtime Environment:
            
OS Name: Windows
            
OS Version: 10.0.22621
            
OS Platform: Windows
            
RID: win-x64
            
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\
            .NET workloads installed:
            
There are no installed workloads to display.
            Host:
            
Version: 8.0.0-rc.1.23419.4
            
Architecture: x64
            
Commit: 9295993
            
RID: win-x64
            .NET SDKs installed:
            
6.0.101 [C:\Program Files\dotnet\sdk]
            
7.0.102 [C:\Program Files\dotnet\sdk]
            
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
            
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]
            .NET runtimes installed:
            
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
            
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
            
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
            
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
            
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
            
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
            
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
            
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
            
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
            
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
            
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
            
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
            
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
            
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
            
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
            
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
            
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
            
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
            
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
            Other architectures found:
            
x86 [C:\Program Files (x86)\dotnet]
            
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
            Environment variables:
            
Not set
            global.json file:
            
Not found
            Learn more:
            https://aka.ms/dotnet/info
            Download .NET:
            https://aka.ms/dotnet/download
            Expected Behavior
            The Keyed services support should work in the constructor too.
            Steps To Reproduce
            No response
            Exceptions (if any)
            No response
            .NET Version
            8.0.100-rc.1.23455.8
            Anything else?
            dotnet --info
            .NET SDK:
            
Version: 8.0.100-rc.1.23455.8
            
Commit: e14caf947f
            Runtime Environment:
            
OS Name: Windows
            
OS Version: 10.0.22621
            
OS Platform: Windows
            
RID: win-x64
            
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\
            .NET workloads installed:
            
There are no installed workloads to display.
            Host:
            
Version: 8.0.0-rc.1.23419.4
            
Architecture: x64
            
Commit: 9295993
            
RID: win-x64
            .NET SDKs installed:
            
6.0.101 [C:\Program Files\dotnet\sdk]
            
7.0.102 [C:\Program Files\dotnet\sdk]
            
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
            
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]
            .NET runtimes installed:
            
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
            
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
            
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
            
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
            
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
            
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
            
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
            
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
            
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
            
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
            
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
            
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
            
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
            
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
            
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
            
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
            
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
            
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
            
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
            Other architectures found:
            
x86 [C:\Program Files (x86)\dotnet]
            
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
            Environment variables:
            
Not set
            global.json file:
            
Not found
            Learn more:
            https://aka.ms/dotnet/info
            Download .NET:
            https://aka.ms/dotnet/download
            Metadata
            Metadata
            Assignees
            Labels
            area-Extensions-DependencyInjectionbug
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              None yet
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor · Issue #92076 · dotnet/runtime · GitHub
              Skip to content
              [FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor  #92076
              Closed
              #92082
              Closed
              [FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor #92076
              #92082
              Assignees
              benjaminpetit
              Labels
              area-Extensions-DependencyInjectionbug
              Milestone
              8.0.0
              Description
              @nitish-kaushik
              nitish-kaushik
              opened on Sep 13, 2023
              Is there an existing issue for this?
              •  I have searched the existing issues
              Describe the bug
              I am trying the new Support for keyed services in minimal APIs, MVC, and SignalR feature in Asp.Net Core Web API Controller. The dependency works fine when I resolve them directly in the action method of the controller but throws an exception if resolve it in the controller constructor.
              Here is my code:
              public interface IEmployee
{
string GetMessage();
}

              public class Employee : IEmployee
{
public string GetMessage()
{
return "Hello from Employee";
}
}

              public class TempEmployee : IEmployee
{
public string GetMessage()
{
return "Hello from Temp Employee";
}
}

              And this is how I have registered them in the program.cs class.
              builder.Services.AddKeyedSingleton<IEmployee, Employee>("employee");
builder.Services.AddKeyedSingleton<IEmployee, TempEmployee>("tempEmployee");

              Here is the code from the Controller:
              This works fine if resolving the dependency directly in the method
              [HttpGet("temp")]
public ActionResult GetTempEmployee([FromKeyedServices("tempEmployee")] IEmployee tempEmployee)
{
return Ok(tempEmployee.GetMessage());
}

              But If I try to inject this dependency in the constructor then get the error:
              [ApiController]
[Route("[controller]")]
public class EmployeeController : ControllerBase
{
private readonly IEmployee tempEmployee;
public EmployeeController([FromKeyedServices("tempEmployee")] IEmployee _tempEmployee)
{
tempEmployee = _tempEmployee;
}
[HttpGet("temp")]
public ActionResult GetTempEmployee()
{
return Ok(tempEmployee.GetMessage());
}
}

              Error:
              System.InvalidOperationException: Unable to resolve service for type 'WebApplication5.IEmployee' while attempting to activate 'WebApplication5.Controllers.EmployeeController'.
at Microsoft.Extensions.DependencyInjection.ActivatorUtilities.ThrowHelperUnableToResolveService(Type type, Type requiredBy)
at lambda_method3(Closure, IServiceProvider, Object[])
at Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider.<>c__DisplayClass6_0.<CreateControllerFactory>g__CreateController|0(ControllerContext controllerContext)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
--- End of stack trace from previous location ---
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)
HEADERS
=======
Accept: */*
Host: localhost:7212
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9,hi;q=0.8
Referer: https://localhost:7212/swagger/index.html
sec-ch-ua: "Chromium";v="116", "Not)A;Brand";v="24", "Google Chrome";v="116"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
sec-fetch-site: same-origin
sec-fetch-mode: cors
sec-fetch-dest: empty

              My System Setup
              Microsoft Visual Studio Enterprise 2022 (64-bit)
              
Preview Version 17.8.0 Preview 1.0
              Windows:
              
Edition Windows 11 Home Single Language
              
Version 22H2
              
OS build	22621.2134
              
Experience Windows Feature Experience Pack 1000.22659.1000.0
              Output form dotnet --info command
              C:\Users\Nitish>dotnet --info
              
.NET SDK:
              
Version: 8.0.100-rc.1.23455.8
              
Commit: e14caf947f
              Runtime Environment:
              
OS Name: Windows
              
OS Version: 10.0.22621
              
OS Platform: Windows
              
RID: win-x64
              
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\
              .NET workloads installed:
              
There are no installed workloads to display.
              Host:
              
Version: 8.0.0-rc.1.23419.4
              
Architecture: x64
              
Commit: 9295993
              
RID: win-x64
              .NET SDKs installed:
              
6.0.101 [C:\Program Files\dotnet\sdk]
              
7.0.102 [C:\Program Files\dotnet\sdk]
              
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
              
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]
              .NET runtimes installed:
              
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
              
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
              
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
              
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
              
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
              
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
              
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
              
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
              
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
              
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
              
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
              
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
              
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
              
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
              
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
              
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
              
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
              
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
              
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
              Other architectures found:
              
x86 [C:\Program Files (x86)\dotnet]
              
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
              Environment variables:
              
Not set
              global.json file:
              
Not found
              Learn more:
              https://aka.ms/dotnet/info
              Download .NET:
              https://aka.ms/dotnet/download
              Expected Behavior
              The Keyed services support should work in the constructor too.
              Steps To Reproduce
              No response
              Exceptions (if any)
              No response
              .NET Version
              8.0.100-rc.1.23455.8
              Anything else?
              dotnet --info
              .NET SDK:
              
Version: 8.0.100-rc.1.23455.8
              
Commit: e14caf947f
              Runtime Environment:
              
OS Name: Windows
              
OS Version: 10.0.22621
              
OS Platform: Windows
              
RID: win-x64
              
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\
              .NET workloads installed:
              
There are no installed workloads to display.
              Host:
              
Version: 8.0.0-rc.1.23419.4
              
Architecture: x64
              
Commit: 9295993
              
RID: win-x64
              .NET SDKs installed:
              
6.0.101 [C:\Program Files\dotnet\sdk]
              
7.0.102 [C:\Program Files\dotnet\sdk]
              
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
              
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]
              .NET runtimes installed:
              
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
              
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
              
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
              
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
              
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
              
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
              
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
              
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
              
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
              
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
              
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
              
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
              
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
              
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
              
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
              
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
              
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
              
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
              
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
              Other architectures found:
              
x86 [C:\Program Files (x86)\dotnet]
              
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
              Environment variables:
              
Not set
              global.json file:
              
Not found
              Learn more:
              https://aka.ms/dotnet/info
              Download .NET:
              https://aka.ms/dotnet/download
              Metadata
              Metadata
              Assignees
              Labels
              area-Extensions-DependencyInjectionbug
              Type
              No type
              Projects
              No projects
                Milestone
                Relationships
                None yet
                Development
                No branches or pull requests
                Issue actions
                
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
[FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor · Issue #92076 · dotnet/runtime · GitHub
                Skip to content
                [FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor  #92076
                Closed
                #92082
                Closed
                [FromKeyedServices("keyName")] Keyed services support in Microsoft.Extensions.DependencyInjection is not resolving dependency in constructor #92076
                #92082
                Assignees
                benjaminpetit
                Labels
                area-Extensions-DependencyInjectionbug
                Milestone
                8.0.0
                Description
                @nitish-kaushik
                nitish-kaushik
                opened on Sep 13, 2023
                Is there an existing issue for this?
                •  I have searched the existing issues
                Describe the bug
                I am trying the new Support for keyed services in minimal APIs, MVC, and SignalR feature in Asp.Net Core Web API Controller. The dependency works fine when I resolve them directly in the action method of the controller but throws an exception if resolve it in the controller constructor.
                Here is my code:
                public interface IEmployee
{
string GetMessage();
}

                public class Employee : IEmployee
{
public string GetMessage()
{
return "Hello from Employee";
}
}

                public class TempEmployee : IEmployee
{
public string GetMessage()
{
return "Hello from Temp Employee";
}
}

                And this is how I have registered them in the program.cs class.
                builder.Services.AddKeyedSingleton<IEmployee, Employee>("employee");
builder.Services.AddKeyedSingleton<IEmployee, TempEmployee>("tempEmployee");

                Here is the code from the Controller:
                This works fine if resolving the dependency directly in the method
                [HttpGet("temp")]
public ActionResult GetTempEmployee([FromKeyedServices("tempEmployee")] IEmployee tempEmployee)
{
return Ok(tempEmployee.GetMessage());
}

                But If I try to inject this dependency in the constructor then get the error:
                [ApiController]
[Route("[controller]")]
public class EmployeeController : ControllerBase
{
private readonly IEmployee tempEmployee;
public EmployeeController([FromKeyedServices("tempEmployee")] IEmployee _tempEmployee)
{
tempEmployee = _tempEmployee;
}
[HttpGet("temp")]
public ActionResult GetTempEmployee()
{
return Ok(tempEmployee.GetMessage());
}
}

                Error:
                System.InvalidOperationException: Unable to resolve service for type 'WebApplication5.IEmployee' while attempting to activate 'WebApplication5.Controllers.EmployeeController'.
at Microsoft.Extensions.DependencyInjection.ActivatorUtilities.ThrowHelperUnableToResolveService(Type type, Type requiredBy)
at lambda_method3(Closure, IServiceProvider, Object[])
at Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider.<>c__DisplayClass6_0.<CreateControllerFactory>g__CreateController|0(ControllerContext controllerContext)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
--- End of stack trace from previous location ---
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)
HEADERS
=======
Accept: */*
Host: localhost:7212
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9,hi;q=0.8
Referer: https://localhost:7212/swagger/index.html
sec-ch-ua: "Chromium";v="116", "Not)A;Brand";v="24", "Google Chrome";v="116"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
sec-fetch-site: same-origin
sec-fetch-mode: cors
sec-fetch-dest: empty

                My System Setup
                Microsoft Visual Studio Enterprise 2022 (64-bit)
                
Preview Version 17.8.0 Preview 1.0
                Windows:
                
Edition Windows 11 Home Single Language
                
Version 22H2
                
OS build	22621.2134
                
Experience Windows Feature Experience Pack 1000.22659.1000.0
                Output form dotnet --info command
                C:\Users\Nitish>dotnet --info
                
.NET SDK:
                
Version: 8.0.100-rc.1.23455.8
                
Commit: e14caf947f
                Runtime Environment:
                
OS Name: Windows
                
OS Version: 10.0.22621
                
OS Platform: Windows
                
RID: win-x64
                
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\
                .NET workloads installed:
                
There are no installed workloads to display.
                Host:
                
Version: 8.0.0-rc.1.23419.4
                
Architecture: x64
                
Commit: 9295993
                
RID: win-x64
                .NET SDKs installed:
                
6.0.101 [C:\Program Files\dotnet\sdk]
                
7.0.102 [C:\Program Files\dotnet\sdk]
                
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
                
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]
                .NET runtimes installed:
                
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
                
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
                
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
                
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
                
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
                
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
                
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
                
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
                
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
                
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
                
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
                
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
                
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
                
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
                
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
                
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
                
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
                
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
                
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
                Other architectures found:
                
x86 [C:\Program Files (x86)\dotnet]
                
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
                Environment variables:
                
Not set
                global.json file:
                
Not found
                Learn more:
                https://aka.ms/dotnet/info
                Download .NET:
                https://aka.ms/dotnet/download
                Expected Behavior
                The Keyed services support should work in the constructor too.
                Steps To Reproduce
                No response
                Exceptions (if any)
                No response
                .NET Version
                8.0.100-rc.1.23455.8
                Anything else?
                dotnet --info
                .NET SDK:
                
Version: 8.0.100-rc.1.23455.8
                
Commit: e14caf947f
                Runtime Environment:
                
OS Name: Windows
                
OS Version: 10.0.22621
                
OS Platform: Windows
                
RID: win-x64
                
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.1.23455.8\
                .NET workloads installed:
                
There are no installed workloads to display.
                Host:
                
Version: 8.0.0-rc.1.23419.4
                
Architecture: x64
                
Commit: 9295993
                
RID: win-x64
                .NET SDKs installed:
                
6.0.101 [C:\Program Files\dotnet\sdk]
                
7.0.102 [C:\Program Files\dotnet\sdk]
                
8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
                
8.0.100-rc.1.23455.8 [C:\Program Files\dotnet\sdk]
                .NET runtimes installed:
                
Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
                
Microsoft.AspNetCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
                
Microsoft.AspNetCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
                
Microsoft.AspNetCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
                
Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
                
Microsoft.AspNetCore.App 8.0.0-rc.1.23421.29 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
                
Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
                
Microsoft.NETCore.App 6.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
                
Microsoft.NETCore.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
                
Microsoft.NETCore.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
                
Microsoft.NETCore.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
                
Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
                
Microsoft.NETCore.App 8.0.0-rc.1.23419.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
                
Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
                
Microsoft.WindowsDesktop.App 6.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
                
Microsoft.WindowsDesktop.App 7.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
                
Microsoft.WindowsDesktop.App 7.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
                
Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
                
Microsoft.WindowsDesktop.App 8.0.0-rc.1.23420.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
                Other architectures found:
                
x86 [C:\Program Files (x86)\dotnet]
                
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
                Environment variables:
                
Not set
                global.json file:
                
Not found
                Learn more:
                https://aka.ms/dotnet/info
                Download .NET:
                https://aka.ms/dotnet/download
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                area-Extensions-DependencyInjectionbug
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