如何在Asp.Net Core2.1中将Swagger与Ocelot一起使用

<ItemGroup>
  <PackageReference Include="Microsoft.AspNetCore.All" Version="2.1.0" />
  <PackageReference Include="Ocelot" Version="13.0.1" />
</ItemGroup>

public void ConfigureServices(IServiceCollection services)
{
    services.AddMvc();

    services.AddSwaggerGen(c =>
    {
        c.SwaggerDoc("v1", new Info { Title = "API", Version = "v1" });
    });
}

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
    }

    app.UseSwagger();
    app.UseSwaggerUI(c =>
    {
        c.SwaggerEndpoint("/swagger/v1/swagger.json", "API V1");
    });

    app.UseOcelot().Wait();
}

{
  "Routes": [
    {
      "DownstreamPathTemplate": "/api/{everything}",
      "DownstreamScheme": "http",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 5000
        }
      ],
      "UpstreamPathTemplate": "/api/{everything}",
      "UpstreamHttpMethod": [ "Get", "Post" ]
    }
  ]
}