Question about FISS vs. API in timeout and getting workflow metadata

[zhwshen]

I have some questions about FISS vs. API in getting workflow metadata and timeouts. Thank you!

I am using FireCloud inside a Python script for 3 purposes:

1. Download TSV from Terra (api.get_entities_tsv)
2. Upload TSV to Terra (api.upload_entities)
3. Query workflow input configuration (api.get_workflow_metadata).

My main issue is that API authentication times out often in the middle of a long run or when Terra workspace content changes. But when I call api._set_session() at the beginning of each run, it interferes with other features in the repo code. I want to switch to FISS which doesn't seem to have the timeout issue, but it doesn't seem to have a workflow metadata query function.

So I would really appreciate help with:

1. How to auto-restart API auth session in the middle of a long run gracefully so the job doesn't crash midway due to API connection timeout?
2. What will be an alternative way to do api.get_workflow_metadata but using FISS and not having timeout issues?