Hi,
On C7 I was able to interact with the REST API to extract data and effect an instance. For example: I had the ability to get the data of a timer and trigger it. Could anyone please advice how to do this in C8 (8.5)? REST API doesn’t seem to have that capability. Is it only through Zeebe grpc?
Hi Pedro.
Thanks for your question. Please note, that we currently harmonize the REST API with 8.8 - so you should check there - as this will be extended compared to 8.5: Overview | Camunda 8 Docs. We want all functionality be available via REST which will also be the primary API technology - so you should not be forced to go to gRPC anywhere…
We also just kick of a project to document the before/after REST methods - but that might still need a bit to generate visible results.
What exact REST method are you searching for?
BEst
Bernd
Hi @BerndRuecker,
Thank you for reply. I can’t remember the name from the top of my head, but basically I’m looking for a combination of methods to retrieve tasks, sub processes, message events, and timers from a process instance and have the ability to alter them. For example, like I said in my original post, have the ability to get a timer and trigger it.
When at BP3 I worked in a pet project to create a sort of BPMN Assert library in node.js by leveraging the REST API of C7 and I was looking to do something similar in my current company but for C8. Having this is kind of useful when testing a process application.
Thanks again 
Hi Pedro.
We currently work on a Mapping Table for C7 to C8 REST API. We drafted this prototype to sketch the format we have in mind. What do you think of this?
https://camunda-community-hub.github.io/camunda-7-to-8-code-conversion/
It is filled from the two existing OpenAPI specifications plus a manual mapping which we just started to draft ourselves (hence the many “to be defined” in the table).
We sketched only three methods for the moment as an example:
- GET /authorization
- GET /process-definition
- GET /process-instance
WDYT - would that be helpful?
Any other early feedback or thoughts?
Thanks
Bernd
Hi Bernd,
I like this mapping table. For C7 to C8 migrations something like this would be very helpful to find the resource and how it changed. For those that don’t have equivalent I think it would be valuable to have an explanation or the alternative. And a link to the swagger documentation 
Appreciate the early peek into this 