/files/save_url has high rate of failure

Hi nyou045​ 

Thank you for providing those details. Based on what we're seeing, the download failures you're encountering with the /2/files/save_url endpoint are due to rate limiting. In other words, your integration is sending too many requests within a short period of time, and the API is throttling those requests as a result.

As a recommendation, apps should be written to handle rate limit responses automatically. The best practice is to retry the request, respecting the 'Retry-After' header, if given in the response, or using an exponential back-off, if not. I recommend referring to the error documentation and Error Handling Guide for more information.

Also, it's important to note that rate limiting doesn't reduce or "throttle" transfer speeds for requests that are successful. If you're seeing slow performance on requests that do succeed, that's most likely due to environmental factors such as network conditions between your infrastructure and Dropbox, bandwidth/latency constraints, DNS/proxy/firewall behavior, or resource constraints on the host running the requests (CPU, memory, disk, or concurrency limits).