ALM Octane sister forum for REST API and Integrations
ALM Octane is built upon the foundation accessible via REST API. In fact, the whole user interface and definitely all integrations are using REST API calls to the engine.
We have a sister forum in this community dedicated to the this matter - ALM Octane API and Integrations.
Make sure you get notifications from this forum too to be aware of everything Octane like Java and Node.js SDKs.