/// <summary>Initializes a new instance of the <see cref="WebApiToSwaggerMiddleware"/> class.</summary>
/// <param name="nextDelegate">The next delegate.</param>
public SwaggerMiddleware(RequestDelegate nextDelegate, IServiceProvider serviceProvider, string documentName, string path, SwaggerMiddlewareSettings settings)
{
_nextDelegate = nextDelegate;
_documentName = documentName;
_path = path;
_apiDescriptionGroupCollectionProvider = serviceProvider.GetService <IApiDescriptionGroupCollectionProvider>() ??
throw new InvalidOperationException("API Explorer not registered in DI.");
_documentProvider = serviceProvider.GetService <SwaggerDocumentProvider>() ??
throw new InvalidOperationException("The NSwag DI services are not registered: Call " + nameof(NSwagServiceCollectionExtensions.AddSwagger) + "() in ConfigureServices().");
_settings = settings;
}
