We are currently developing an API feed from one of our sites.  The feed is to provide details of the latest articles and allow this to be displayed in our mobile app.  When we build the solution on our local development machines we can access the API to read the data. When we publish our site to the integration DXC environment the API is not accessible, we just get a 404 page not found.  The rest of the site works as intended.

We have mapped the API route in an initialisation module, using the below example code:

GlobalConfiguration.Configure(config =>
            {
                config.MapHttpAttributeRoutes();

                var formatters = GlobalConfiguration.Configuration.Formatters;
                var jsonFormatter = formatters.JsonFormatter;
                var settings = jsonFormatter.SerializerSettings;

                var enumConverter = new Newtonsoft.Json.Converters.StringEnumConverter();
                jsonFormatter.SerializerSettings.Converters.Add(enumConverter);

                config.Formatters.Remove(config.Formatters.XmlFormatter);

                config.Routes.MapHttpRoute(
                    name: "BespokeFeedsApi",
                    routeTemplate: "api/{controller}/{action}/{value}",
                    defaults: new { value = RouteParameter.Optional });
            });

Any ideas why this configuration won't work when deployed to the DXC environment?

We are running on EPiServer.CMS v11.9.2 and EPiServer.CMS.UI v11.5.2.