[Question]: No Stack trace present in swagger.json file for an error

[kabdul-incomm]

What are you wanting to achieve?

I'm trying to resolve 500 error which comes up when we load swagger documentation. When I look into Swagger.json I don't find any stack trace but I see a one liner though. Here, I want to know the exact stack trace and the error.

What code or approach do you have so far?

` services.AddSwaggerGen(options =>
{
options.SwaggerDoc("v1", new Microsoft.OpenApi.Models.OpenApiInfo
{
Version = "v1",
Title = " Api",
Description = "An ASP.NET Core Web API.",
Contact = new Microsoft.OpenApi.Models.OpenApiContact
{
Name = " ",
Email = "
}
});
// XML documentation setup
var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
options.IncludeXmlComments(Path.Combine(AppContext.BaseDirectory, xmlFile));
options.ResolveConflictingActions(apiDescriptions => apiDescriptions.First());

});
// Swagger Annotations
services.AddSwaggerGen(action => action.EnableAnnotations(enableAnnotationsForInheritance: true, enableAnnotationsForPolymorphism: true));

app.UseDeveloperExceptionPage();
app.UseMiddleware();
app.ConfigureExceptionHandler();

app.UseSwagger(options =>
{
options.SerializeAsV2 = true;
});

app.UseSwaggerUI(options =>
{
options.SwaggerEndpoint("/swagger/v1/swagger.json", "v1");
});

app.UseHttpsRedirection();
app.UseRouting();

app.UseLoggingMiddleware();

app.UseAuthorization();

app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
});

app.UseWarmup(_services);
`

Additional context

No response

[martincostello]

Check your server error logs. The response is failing for some reason, and then your error handling appears to return a type name in the response, which swagger UI then doesn't know what to do with.

[kabdul-incomm]

Check your server error logs. The response is failing for some reason, and then your error handling appears to return a type name in the response, which swagger UI then doesn't know what to do with.

Thank you for your response. I'm running the code locally and I checked EventViewer and I don't see anything.

[martincostello]

Without some more detail from error logs or a minimal reproducible example, there's nothing much else we can do to help you here.