amazon web services - How do I log event and context information automatically on AWS Lambda function failures? -


i trying log lambda function failures in such way event , context information saved event information can, if deemed necessary, later manually republished function's trigger. not want handle logic in functions themselves.

what i've tried far:

  • cloudwatch alarms on error metric. tell me function has failed.
  • looking in cloudwatch logs. see coded failure messages emitted each function.

there no such setting, if that's you're looking for.

if you'd these properties logged, have print them - way visible in cloudwatch , whatever service logs piped (logs can piped elasticsearch example, cloudwatch).

however, can done adding these 2 lines of code:

exports.handler = (event, context, callback) => {   console.log(json.stringify(event));   console.log(json.stringify(context));    // code };

as rule of thumb, logs way describing lambda went through @ each invocation.


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