Analyze Logs in the Console

Go to your CloudWatch Console.

  1. Under Logs, click Log Groups.

  2. Check the Exact match box, and type the prefix of your Stack, monitoring-app in our case.

  3. You should see all available Log Groups for our Lambda functions.

  4. Click in the one that contains GetAllItemsFunction on its name.

    metrics-1

  5. Click in the latest Log Stream.

    metrics-2

    You should be able to see something like the print screen below containing at least three log entries: Two for the context and event objects, a tentative error log in case of any failures, and a final one regarding the result of the function execution.

  6. Expand and navigate through the payload generated for each entry. Notice that the additional metadata that we added in our helper lib are present for each entry.

metrics-3

API Gateway Logs

Also, make sure to investigate the logs generated when invoking our APIs via API Gateway

metrics-3