go使用grpc的负载均衡去连接consul

使用别人开源的解析器  GitHub - mbobakov/grpc-consul-resolver: Easy-pluggable full-feature GRPC resolver for services registered in Consul

 

package main

import (
   "google.golang.org/grpc/credentials/insecure"
   "log"

   // 这里一定要import;很重要
   _ "github.com/mbobakov/grpc-consul-resolver"

   "google.golang.org/grpc"
)

func main() {
   conn, err := grpc.Dial(
      // consul://192.168.193.128:8500 consul地址
      // test-serve 拉取的服务名
      // wait=14s 等待时间
      // tag=manual 筛选条件
      // 底层就是利用grpc-consul-resolver将参数解析成HTTP请求获取对应的服务
      "consul://192.168.244.120:8500/test-server?wait=14s&tag=manual",
      grpc.WithTransportCredentials(insecure.NewCredentials()),
      grpc.WithDefaultServiceConfig(`{"loadBalancingPolicy": "round_robin"}`),
   )
   if err != nil {
      log.Fatal(err)
   }
   defer conn.Close()
   //client := proto.NewTestClient(conn)
   //for i := 0; i < 12; i++ {
   // resp, err := client.Test(context.Background(), &emptypb.Empty{})
   // if err != nil {
   //    panic(err)
   // }
   // fmt.Println(resp.Msg)
   //}
}