duangang1991 2018-07-26 06:37
浏览 85
已采纳

来自外部软件包的AWS Lambda golang日志记录

I'm starting to use external packages for my lambda function which is written in Golang.

I use serverless framework if that makes any difference.

I want to centralize the error logging every time there's an error in the DB.

but I notice that the log doesn't show on the cloudwatch. Only the logs in the main package shows.

here's my code

package response
func ServerError(err error) (events.APIGatewayProxyResponse, error) {
    log.Print(fmt.Errorf("ERROR: %v", err))
    return Custom(500, "Internal Server Error", nil)
}

I also tried

package response
func ServerError(err error) (events.APIGatewayProxyResponse, error) {
    fmt.Println(fmt.Errorf("ERROR: %v", err))
    return Custom(500, "Internal Server Error", nil)
}

My question is how can I enable logging in lambda outside of main package?

Thanks!

EDIT

It turns out that log.Print(fmt.Errorf("ERROR: %v", err)) works as well. I must've missed it the last time.

  • 写回答

1条回答 默认 最新

  • dpgu5074 2018-08-27 17:30
    关注

    In the serverless framework anything printed to std.out/std err will be written to the cloudwatch logs. Therefore all you have to do is write your errors to std.err

    fmt.Fprintf(os.Stderr, "log message: %s", str)

    This post touches on writing to std.err https://stackoverflow.com/a/40694000/2840591

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

报告相同问题?

悬赏问题

  • ¥15 cocos的js代码调用wx.createUseInfoButton问题!
  • ¥15 关于自相关函数法和周期图法实现对随机信号的功率谱估计的matlab程序运行的问题,请各位专家解答!
  • ¥15 Python程序,深度学习,有偿私
  • ¥15 扫描枪扫条形码出现问题
  • ¥35 poi合并多个word成一个新word,原word中横版没了.
  • ¥15 【火车头采集器】搜狐娱乐这种列表页网址,怎么采集?
  • ¥15 求MCSCANX 帮助
  • ¥15 机器学习训练相关模型
  • ¥15 Todesk 远程写代码 anaconda jupyter python3
  • ¥15 我的R语言提示去除连锁不平衡时clump_data报错,图片以下所示,卡了好几天了,苦恼不知道如何解决,有人帮我看看怎么解决吗?