Swagger & Postman don't work after update to 5.6.0/5.6.1 #5470

Hi guys,

We've recently run through an exercise in updating the .Net Zero version of our project, as outlined here.

We've gone from 5.2.0 to 5.5.1 to 5.6.1. Swagger and API calls via Postman both worked previously when we were using 5.2.0 but now when trying to access Swagger we get an ERR_CONNECTION_REFUSED, and when we try and access an API method through Postman, for example, <a class="postlink" href="https://localhost:44359/api/TokenAuth/Authenticate">https://localhost:44359/api/TokenAuth/Authenticate</a>, Postman gives a "Could not get any response" message. We suspect that while these are two separate issues that they are in some way related?

Our application services are working via API within the application itself, just not through other methods as specified.

We also noticed that changes were made to Swagger during version 5.3.0, due to the adding of the Authorisation button? We're tried to add the changes, as detailed here, isn't working - these two issues are present:

// Enable middleware to serve swagger-ui assets (HTML, JS, CSS etc.)
            app.UseSwaggerUI(options =>
            {
                //options.
                options.InjectOnCompleteJavaScript("/swagger/ui/abp.js"); <- ERROR: SwaggerUi doesn't contain a definition for InjectOnCompleteJavaScript
                options.InjectOnCompleteJavaScript("/swagger/ui/on-complete.js"); <- ERROR: SwaggerUi doesn't contain a definition for InjectOnCompleteJavaScript
                options.SwaggerEndpoint(_appConfiguration["App:ServerRootAddress"] + "/swagger/v1/swagger.json", "Falcon API V1");
                options.IndexStream = () => Assembly.GetExecutingAssembly()
                    .GetManifestResourceStream("Syntaq.Falcon.Web.Host.wwwroot.swagger.ui.index.html");
            }); //URL: /swagger

And

// Define the BearerAuth scheme that's in use
                options.AddSecurityDefinition("bearerAuth", new ApiKeyScheme()
                {
                    Description = "JWT Authorization header using the Bearer scheme. Example: \"Authorization: Bearer {token}\"",
                    Name = "Authorization",
                    In = "header",
                    Type = "apiKey"
                });

                // Assign scope requirements to operations based on AuthorizeAttribute
                options.OperationFilter<SecurityRequirementsOperationFilter>(); <- ERROR: The type or namespace 'SecurityRequirementsOperationFilter' could not be found.

Has anyone else come across this issue and resolved it?

Thanks,

David