Proxy (代理) 中间件

+++ title = “代理” url = “/middleware/proxy” [menu.side] name = “代理” parent = “middleware” weight = 13

+++

Proxy (代理) 中间件

Proxy 提供 HTTP / WebSocket 反向代理中间件。它使用已配置的负载平衡技术将请求转发到上游服务器。

用法

url1, err := url.Parse("http://localhost:8081")
if err != nil {
  e.Logger.Fatal(err)
}
url2, err := url.Parse("http://localhost:8082")
if err != nil {
  e.Logger.Fatal(err)
}
e.Use(middleware.Proxy(&middleware.RoundRobinBalancer{
  Targets: []*middleware.ProxyTarget{
    {
      URL: url1,
    },
    {
      URL: url2,
    },
  },
}))

自定义配置

用法

e := echo.New()
e.Use(middleware.ProxyWithConfig(middleware.ProxyConfig{}))

配置

// ProxyConfig defines the config for Proxy middleware.
ProxyConfig struct {
  // Skipper defines a function to skip middleware.
  Skipper Skipper
  // Balancer defines a load balancing technique.
  // Required.
  // Possible values:
  // - RandomBalancer
  // - RoundRobinBalancer
  Balancer ProxyBalancer
}

默认配置

示例