[SOLVED] Problem: Chart generation failed: null

[rossko57]

There’s an example of using REST API to check if Item persisted here

REST API GET persistence items

I dont understand following api behavior. If i send a get request on which items are available from persistence service i get an empty result and it makes no difference with or without url param serviceId set… [image] In case i request a specific item i get persisted data… [image] So that makes no sense for me. Or im missing some link here