main.go

////////////////////////////////////////////////////////////////////////////
// Porgram: wx-go.go
// Purpose: weixin robot
// Authors: Tong Sun (c) 2017, All rights reserved
////////////////////////////////////////////////////////////////////////////

package main

import (
	//"fmt"
	"time"

	"github.com/songtianyi/rrframework/logs"
	"github.com/songtianyi/wechat-go/wxweb"

	"github.com/suntong/wx-go/plugins/gamer24"
)

func main() {
	// create session
	session, err := wxweb.CreateSession(nil, nil, wxweb.TERMINAL_MODE)
	if err != nil {
		logs.Error(err)
		return
	}
	// load plugins for this session
	gamer24.Register(session)

	d0, _ := time.ParseDuration("3s")
	for { // until logged in
		err := session.LoginAndServe(false)
		if err == nil {
			break
		}
		logs.Error("session exit, %s", err)
	}

OuterLoop:
	for { // endless loop
		for i, d := 0, d0; i < 16; i, d = i+1, d*2 {
			//logs.Info(fmt.Sprintf("trying re-login with cache (%d)", i))
			logs.Info("trying re-login with cache (%d)", i)
			if err := session.LoginAndServe(true); err != nil {
				logs.Error("re-login (%d) error, %s", i, err)
				time.Sleep(d)
			} else {
				logs.Info("re-login with cache succeeded.")
				continue OuterLoop
			}
		}
		if session, err = wxweb.CreateSession(nil, session.HandlerRegister, wxweb.TERMINAL_MODE); err != nil {
			logs.Error("create new sesion failed, %s", err)
			break
		} else {
			logs.Info("recreate new session succeeded.")
		}
	}
}

use

time.Sleep(d * time.Second)

instead of d