Скачать или смотреть Getting CloudFront Metrics Using the AWS Javascript SDK

Discover how to retrieve CloudFront metrics using the AWS Javascript SDK effectively, with troubleshooting tips for common issues.
---
This video is based on the question https://stackoverflow.com/q/64660510/ asked by the user 'Sean' ( https://stackoverflow.com/u/1539640/ ) and on the answer https://stackoverflow.com/a/64694276/ provided by the user 'Sean' ( https://stackoverflow.com/u/1539640/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: AWS - How to get Cloudfront metrics using Javascript SDK

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Getting CloudFront Metrics Using the AWS Javascript SDK

If you're working with AWS CloudFront and trying to get metrics using the JavaScript SDK, you might face some challenges. One common issue is not receiving any data back from the API, which can be frustrating for developers. In this guide, we'll explore how to successfully retrieve CloudFront metrics and discuss common pitfalls to avoid.

The Problem: No Data Returned

One user encountered a situation where they were not receiving any metrics from CloudFront, despite taking the necessary precautions:

Permissions: They tested with a full admin account.

Region: They confirmed they were using North Virginia (us-east-1), which is suitable for CloudFront.

Basic Parameters: They were confident in their use of StartDate, EndDate, and DistributionID.

They provided a snippet of their code, demonstrating their current setup, which unfortunately returned an empty array for timestamps and values.

Example Code

[[See Video to Reveal this Text or Code Snippet]]

The Solution: Start Time Is Critical

After troubleshooting, it was found that the StartTime parameter was set too far back in the past. The specific time used in the example equated to Saturday, February 17, 2018. AWS CloudWatch typically only retains metrics for a limited time; if you request data older than what's available, you will receive no results.

Steps to Correct the Issue

Adjust StartTime: Make sure your StartTime is within the range of available data. The best practice is to set it to a more recent time frame.

For example, using timestamps from the last few days instead of years ago.

Ensure EndTime Is More Recent: The EndTime should also reflect a time that is after the StartTime.

Re-run the Code: After making these changes, run your code again to see if data is returned.

Conclusion

By ensuring your StartTime and EndTime parameters are set correctly, you can effectively retrieve metrics from CloudFront using the AWS JavaScript SDK. This small adjustment can make a big difference in the data you collect, allowing you to leverage CloudFront efficiently for your applications.

Final Note

Hopefully, this guide helps anyone facing similar challenges in accessing CloudFront metrics. Don't forget to adjust your time parameters according to AWS's data retention limits. Happy coding!