How to list all the parathreads in a Polkadot network?

Question

I want to get the list of Parathreads in my network.

In this previous question: How to list all the parachains in a Polkadot network? it explains how to get a list of all parachains in the relay chain, querying the storage Parachains.

If I query the ParaLifecycles storage I get the whole list of Para IDs (Parachains and Parathreads) and in my app I can filter this list to have only the parathreads list. But is there a better way to get only the list of Parathreads?

Answer 1

I believe you are already following the best approach one could use at the moment, because Paras in paras_registrar keeps every registered paraId along with its ParaInfo, but then you won't be able to filter which of those are parathreads / parachains.