.Net 6, Minimal API - Endpoint does not appear in swagger-output if Microsoft.AspNetCore.Http parameter exists in "MapXXX"

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

I want to use minimal API with swagger, but if i use the “HttpContext” in the parameter-list, the endpoint is not showing in the swagger-result (json and output).

The error only happens if the “HttpContext” parameter stands alone.

Is this a bug or a misunderstanding ?

You can see the example above, the endpoint “WithContext” is not showing in swagger-output/json, all ohter are showing.

var builder = WebApplication.CreateBuilder(args);
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

var app = builder.Build();
app.UseSwagger();
app.MapGet("/", () => "Hello World!"); // => is showing

// is showing
app.MapGet("/WithHttpResonse", async (HttpResponse response) =>
    await response.WriteAsJsonAsync("Test")).WithName("GetWithHttpResonse");

// is showing
app.MapGet("/WithHttpResonseV2", async (HttpResponse response,HttpContext httpContext) =>
    await httpContext.Response.WriteAsJsonAsync("Test")).WithName("GetWithHttpResonseV2");

// DOES NOT APPEAR
app.MapGet("/WithContext", async (HttpContext context) =>
    await context.Response.WriteAsJsonAsync("Test")).WithName("GetWithContext");

app.MapSwagger();
app.UseSwaggerUI();
app.Run();

Expected Behavior

The endpoint “WithContext” is showing in the swagger-output.

Steps To Reproduce

See code-example in description

Exceptions (if any)

No response

.NET Version

Visual Studio Community 2022 (17.0.5)

.NET SDK (reflecting any global.json):
 Version:   6.0.101
 Commit:    ef49f6213a

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.19043
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\6.0.101\

Host (useful for support):
  Version: 6.0.1
  Commit:  3a25a7f1cc

.NET SDKs installed:
  6.0.101 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Anything else?

No response

[Arclight3]

A valid situation to define an endpoint that is affected by this issue is for health checking (something that I define in all APIs).

app.MapGet("api/health", async context =>
        await context.Response.WriteAsync("My API is healthy!"))
   .WithName("HealthCheck")
   .WithDisplayName("HealthCheck");

Since this practice is common I think many applications are affected.

[captainsafia]

I’ve tried this again on .NET 7 RC 2 and have confirmed that I’m seeing endpoints with HttpContext. Closing for now.