What this endpoint does

Returns the list of PFI bulk data tasks currently waiting in the queue (not yet started). PFI runs a maximum of two concurrent tasks; additional submissions are queued in FIFO order. Use this to assess queue depth before submitting more pipeline requests. Once a task begins running it is removed from this list — to track in-progress or completed tasks, use PFI: Task Status. Queued tasks can be cancelled with PFI: Delete Task.

Response data

Returns an array of queued task IDs. Note: the array is reverse-ordered for display — index 0 is the most recently submitted task, and the last element is the next to execute. An empty array means nothing is waiting.