Lambdon is you AWS Lambda debugging companion

This tool is focused on AWS's Lambda functions debugging including integrations with AWS's Api Gateway. What it basically does is displaying the Cloud Watch Logs latest entries in terminal, just like tail.

Main Features

• Almost realtime logs display
• Quite friendly, interactive UX/UI
• Automatically handles lambda integrations (with Api Gateway)
• Automatically handles throttling thru concurrency and retries
• Configurable and pretty straight forward

Requirements

• node >= 6.0

In order to debug Api Gateway integrations you must have Enable CloudWatch Logs option enabled for each api stage

Installation

• npm install lambdon -g

Usage

Usage: lambdon -m "hello" --integrations [options]

Options:
  --profile, -p           AWS Profile to use
  --region, -r            AWS Region to use               [default: "us-east-1"]
  --match, -m             AWS Lambda functions match string
  --integrations          Include AWS Lambda > ApiGateway integrations [boolean]
  --log-group, -g         Specify explicit the AWS CloudWatchLogs group to
                          listen to                             [default: false]
  --concurrency           AWS api calls concurrency                 [default: 5]
  --top-n, -n             Top N CloudWatchLogs streams to listen by
                          lastEventTimestamp                     [default: 9999]
  --timeout, -t           Empty logs timeout before the program ends[default: 0]
  --pooling-interval, -i  CloudWatchLogs streams pooling interval  [default: 50]
  --retry-timeout         Retry timeout for throttled AWS api calls
                                                                  [default: 200]
  --raw                   Enable raw output                     [default: false]
  --version, -v           Program version                              [boolean]
  -h, --help              Show help                                    [boolean]

Gotchas

Due to distributed nature of AWS services the logs may arrive with a delay and be a bit shuffled. Pay attention at log time displayed ;)

ToDo

• Add retry strategies
• Handle multiple Lambda functions at once
• Add output formatters
• Add tests
• Improve overall code quality

To Contributors

PRs are welcome! =)