Asp0014 Warning

Thanks Tuhin Paul!

 

Unfortunately still the same error. I corrected and used at the top level but still no luck.

Thanks Jithu!

 

Unfortunately still doesn't work ! Any help please.

 

builder.Services.AddHealthChecksUI(setupSettings: setup =>
{
    setup.AddHealthCheckEndpoint("example_health_check", "/health-ui");
}).AddInMemoryStorage();

 

app.MapHealthChecksUI(healthChecks => healthChecks
.UIPath = "/health-ui");
 

1. Update Route Registrations
The new preferred method is to register routes directly on the app object. Here's how to adjust your code:

app.MapControllers();                
app.MapHealthChecks("/health", new HealthCheckOptions
{
    Predicate = check => check.Tags.Contains("SQL Connection") || check.Tags.Contains("rate check") || check.Tags.Contains("live check"),
    ResponseWriter = CustomResponseWriter.WriteHealthCheckResponse
});

2. Verify HealthCheckUI Configuration
If your health check endpoint is healthy but HealthCheckUI is reporting it as unhealthy, it could be a configuration issue. Make sure the HealthCheckUI is correctly configured to point to the health check endpoint.

var builder = WebApplication.CreateBuilder(args);

// Add health checks
builder.Services.AddHealthChecks()
    .AddCheck("example_health_check", () =>
        HealthCheckResult.Healthy("Healthy result"), tags: new[] { "example_tag" });

// Add HealthChecksUI
builder.Services.AddHealthChecksUI(setupSettings: setup =>
{
    setup.AddHealthCheckEndpoint("Example Health Check", "/health");
}).AddInMemoryStorage();

var app = builder.Build();

app.UseRouting();

app.MapHealthChecks("/health", new HealthCheckOptions
{
    Predicate = check => check.Tags.Contains("SQL Connection") || check.Tags.Contains("rate check") || check.Tags.Contains("live check"),
    ResponseWriter = CustomResponseWriter.WriteHealthCheckResponse
});

app.MapHealthChecksUI();

app.MapControllers();

app.Run();

3. Custom Health Check Response Writer
Ensure the custom response writer is correctly implemented:

public static class CustomResponseWriter
{
    public static Task WriteHealthCheckResponse(HttpContext context, HealthReport report)
    {
        context.Response.ContentType = "application/json";

        // Determine the overall status
        string overallStatus = report.Entries.Any(e => e.Value.Status == HealthStatus.Unhealthy && e.Key == "live check")
            ? "Degraded"
            : report.Status.ToString();

        // If any non-live check is unhealthy, set overall status to UnHealthy
        if (overallStatus != "Degraded" && report.Entries.Any(e => e.Value.Status == HealthStatus.Unhealthy))
        {
            overallStatus = "UnHealthy";
        }

        var response = new
        {
            status = overallStatus,
            checks = report.Entries.Select(e => new
            {
                name = e.Key,
                status = e.Value.Status.ToString(),
                description = e.Value.Description
            }),
            duration = report.TotalDuration
        };

        return context.Response.WriteAsync(JsonSerializer.Serialize(response));
    }
}

Try this way, it will work....

Check how you can modify your code to use  route registrations:

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddControllers();
builder.Services.AddHealthChecks()
    .AddCheck("example_health_check");

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseDeveloperExceptionPage();
}
else
{
    app.UseExceptionHandler("/Home/Error");
    app.UseHsts();
}

app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseRouting();
app.UseAuthorization();

app.MapControllers();
app.MapHealthChecks("/health");

app.Run();

builder.Services.AddControllers(); and builder.Services.AddHealthChecks() are used to add the necessary services.

Are you're registering routes using app.UseEndpoints .

In minimal APIs (introduced in ASP.NET Core 6+), it's recommended to register routes directly at the top level of the application, like this:

app.MapControllers();
app.SetupHealthChecksEndpoints()

• Remove the app.UseEndpoints call.
• Move app.MapControllers(); and app.SetupHealthChecksEndpoints(); directly under the app variable.