Datadog Lambda Library for Ruby

Datadog Lambda Library for Ruby

build RubyGem Slack License

Datadog Lambda Library for Ruby (2.5 and 2.7) enables enhanced Lambda metrics, distributed tracing, and custom metric submission from AWS Lambda functions.


Follow the installation instructions, and view your function’s enhanced metrics, traces and logs in Datadog.

Custom Metrics

Once installed, you should be able to submit custom metrics from your Lambda function.

Check out the instructions for submitting custom metrics from AWS Lambda functions.


Once installed, you should be able to view your function’s traces in Datadog, and your function’s logs should be automatically connected to the traces.

For additional details on trace collection, take a look at collecting traces from AWS Lambda functions.

For additional details on the tracer, check out the official documentation for Datadog trace client.

For additional details on trace and log connection, see connecting logs and traces.

Environment Variables


Set to debug enable debug logs from the Datadog Lambda Library. Defaults to info.


Generate enhanced Datadog Lambda integration metrics, such as, aws.lambda.enhanced.invocations and aws.lambda.enhanced.errors. Defaults to true.


Set to true to merge the X-Ray trace and the Datadog trace, when using both the X-Ray and Datadog tracing. Defaults to false.

Opening Issues

If you encounter a bug with this package, we want to hear about it. Before opening a new issue, search the existing issues to avoid duplicates.

When opening an issue, include the Datadog Lambda Layer version, Ruby version, and stack trace if available. In addition, include the steps to reproduce when appropriate.

You can also open an issue for a feature request.


If you find an issue with this package and have a fix, please feel free to open a pull request following the procedures.


Unless explicitly stated otherwise all files in this repository are licensed under the Apache License Version 2.0.

This product includes software developed at Datadog ( Copyright 2019 Datadog, Inc.