RestAPI - returning Invalid Token intermittently

Question

I have an application that has been running for 5 years which uses the dotnet proxy code from https://github.com/Esri/resource-proxy to access protected layers for a webmap.

Tuesday evening we started to intermittently receiving an "Invalid Token" response using this and the mapping part of our application has become unusable for most our user base.

This message was on the https://status.arcgis.com/ page Wednesday morning:
The ArcGIS.com system will be undergoing maintenance on April 13th, 2021 between the times of 5pm and midnight Pacific Time. While we don't anticipate any significant downtime, you may experience some minimal disruption during this maintenance period.

This is the only thing that's changed. Has anyone else started receiving this "Invalid Token" response intermittently?

AlexRystrom · Answer

I'm trying to find out where to get a list of all these changes. Support sent me this related to this one specifically: https://support.esri.com/en/bugs/nimbus/QlVHLTAwMDEyOTc2Mg==

StuartMoore · Answer

thanks for that i changed my python from:

r = requests.post(url, params=payload, proxies=proxies)

to

r = requests.post(url, data=payload, proxies=proxies)

and its all working now 🙂

shame the documentation wasn't updated...

Stu

AlexRystrom · Answer

I just started seeing this yesterday while testing and manually calling the post via postman or powershell. It appears you can no longer post with the parameters in the query string. You have to send this information in the body of the request now.