wrong param with GetParams function

[leezhm]

// 获取小程序前点调用支付接口所需参数 params, err := payment.GetParams(res.AppID, res.MchID, res.NonceStr, res.PrePayID, time.Now()) if err != nil { // handle error return }

the paySign should use apikey not MchID, and here is the wechat app pay document

[royalrick]

You are right, I've fixed it, thanks for that.