How to Find Logs for Failed Lambda Invocations?

Using CloudWatch Logs Insights is your best bet! If you're doing structured logging, crafting queries to pinpoint error events is super easy. The AWS documentation even has some great examples to help you get started. Check it out! [AWS Docs](https://docs.aws.amazon.com/lambda/latest/dg/monitoring-cloudwatchlogs-view.html#querying-logs)

Honestly, while Lambda is awesome, the log monitoring could definitely use some improvement. There are some techniques we can use to manage this better, but it should really be more user-friendly to begin with.

You can usually search by error patterns related to your programming language. For instance, in JavaScript, you might look for 'ERROR Invoke Error' and for Python, try 'ERROR Exception'. This should help you narrow down the logs quickly!

If you're looking for an easier way to monitor those Lambda failures, I recommend trying out Lumigo. They have a free plan that makes it super simple to keep track of issues!

Make sure your logs are in JSON format with a severity field included. By filtering the log group based on that JSON field, you can easily track down logs associated with failures. Plus, this gives you direct links to the log streams!