Wildberries / WB - 1 (Инфраструктурная команда)

Задача: (код без описания) go/basics

// ListenAndServe runs dmsg Serve function alongside health endpoint
func (a *API) ListenAndServe(lAddr, pAddr, httpAddr string) error {
  errCh := make(chan error)

  dmsgLn, err := net.Listen("tcp ", lAddr)
  if err != nil {
    return err
  }

  dmsgLis := &proxyproto.Listener{Listener: dmsgLn}
  defer dmsgLis.Close() // nolint:errcheck
  go func(l net.Listener, address string) {
    if err := a.dmsgServer.Serve(l, address); err != nil {
      errCh <- err
    }
  }(dmsgLis, pAddr)

  ln, err := net.Listen("tcp ", httpAddr)
  if err != nil {
    return err
  }

  lis := &proxyproto.Listener{Listener: ln}
  defer lis.Close() // nolint:errcheck
  srv := &http.Server{
    ReadTimeout:       3 * time.Second,
    WriteTimeout:      3 * time.Second,
    IdleTimeout:       30 * time.Second,
    ReadHeaderTimeout: 3 * time.Second,
    // Addr:              lis,
    Handler: a.router,
  }

  if err := srv.Serve(lis); err != nil {
    errCh <- err
  }

  return err
}