新建项目

新建空白的asp.net core web项目
安装Yarp.ReverseProxy包版本为2.2.0-preview.1.24266.1
编写代码

namespace YarpStu01;

public class Program
{
    public static void Main(string[] args)
    {
        var builder = WebApplication.CreateBuilder(args);
        builder.Services.AddReverseProxy().LoadFromConfig(builder.Configuration.GetSection("ReverseProxy"));
        var app = builder.Build();
        app.MapReverseProxy();
        app.Run();
    }
}

修改appsettings.json

{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft.AspNetCore": "Warning"
    }
  },
  "ReverseProxy": {
    "Routes": {
      "route1": {
        "ClusterId": "cluster1",
        "Match": {
          "Path": "{**catch-all}"
        }
      }
    },
    "Clusters": {
      "cluster1": {
        "Destinations": {
          "destination1": {
            "Address": "http://127.0.0.1:8086"
          }
        }
      }
    }
  }
}

参考

https://microsoft.github.io/reverse-proxy/articles/getting-started.html
https://blog.csdn.net/sD7O95O/article/details/122762268
https://www.cnblogs.com/webenh/p/15660137.html