如何使用接口IEndpointRouteBuilder创建新路由？

Question

我们已经将项目升级到asp.net core 3.0，并希望使用端点路由。

我有以下旧方法：

public static IRouteBuilder MapLocalizedRoute(this IRouteBuilder routeBuilder,
                string name, string template, object defaults, object constraints, object dataTokens)
{
    if (routeBuilder.DefaultHandler == null)
    {
        throw new ArgumentNullException(nameof(routeBuilder));
    }

    //get registered InlineConstraintResolver
    var inlineConstraintResolver = routeBuilder.ServiceProvider.GetRequiredService<IInlineConstraintResolver>();

    //create new generic route
    routeBuilder.Routes.Add(new LocalizedRoute(routeBuilder.DefaultHandler, name, template,
            new RouteValueDictionary(defaults), new RouteValueDictionary(constraints), 
            new RouteValueDictionary(dataTokens), inlineConstraintResolver));

    return routeBuilder;
}

我需要更改以键入此IEndpointRouteBuilder routeBuilder 。 但是我如何实现添加新的通用路由器呢？接口IEndpointRouteBuilder的主体具有路由属性，我不能使用 routeBuilder.Routes.Add ...