Create protobuf server with go

generate_crt.sh

openssl genrsa -out server.key 2048
openssl req -new -x509 -sha256 -key server.key -out server.crt -days 365

server.go

package main

import (
  "net"
  "crypto/tls"
)

func checkErr(err error){
  if err != nil {
    panic(err)
  }
}

func handler(){
  var err error
  var n int
  var b []byte = make([]byte, 1024)
  
  n, err = conn.Read(b)
  checkErr(err)
  println("Reading", n, "bytes")
  println(b)
}

func main(){
 var err error
  var ln net.Listener
  var con net.Conn
  var crt tls.Certificate
  var config tls.Config
  
  crt, err = tls.LoadX509KeyPair("server.crt", "server.key")
  checkErr(err)
  config = tls.Config{Certificates: []tls.Certificate{crt}}
  
  ln, err = tls.Listen("tcp", ":9000", &config)
  checkErr(err)
  
  for {
    conn, err = ln.Accept()
    checkErr(err)
    go handler(conn)   
  }
}
}