Jira/Confluence Cloud APIs return 413 Error: Request Entity Too Large

[#1]

This article is specific to Jira and Confluence Cloud API Integrations, Automations, Addons and clients such as Java, Python, Curl, NodeJS, Axios, atlassian-connect-express etc. Not browsers.

If you see the following error in your browser, please contact support and provide the full text of the error including any Request ID.

Background

To improve performance and address constantly evolving threats on the web, Atlassian is enabling AWS Cloudfront Content Delivery Network (CDN) and Web Application Firewall (WAF) for all Confluence and Jira Cloud Customers.

This rollout will occur over the next few months, country by country, progressively, with each country taking around 1-2 weeks to complete the migration.

This improvement may unfortunately impact some Jira and Confluence Cloud API integrations (like those written in Python, Node/JS, Java, libcurl, Axios, atlassian-connect-express etc) that attempt to make requests with URLs (including path and query string) longer than 8192 characters/bytes.

Impact

Where previously Jira and Confluence Cloud APIs handled paths longer than 8192 characters/bytes, AWS Cloudfront will actively reject such requests:

https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/RequestAndResponseBehaviorCustomOrigin.html

The maximum length of this URL is 8192 bytes.

If a request or a URL exceeds these maximums, CloudFront returns HTTP status code 413, Request Entity Too Large, to the viewer, and then terminates the TCP connection to the viewer.

Unfortunately, it is not possible to configure Cloudfront to allow longer URLs.

Resolution

To resolve the issue, break up API calls into multiple requests, or restructure your API call such as using labels or field filters instead of enumerating individual work items.

I saw the error in my Chrome/Firefox/Edge/Safari etc browser

If you observed the aforementioned error in your browser please contact Atlassian Support, and ideally include the full text of the error, including Trace ID, and a HAR file covering the error:  https://confluence.atlassian.com/kb/generating-har-files-and-analyzing-web-requests-720420612.html