Get Garmin Backfill Status Endpoint

Get Garmin backfill status for backfill data types.

The backfill is webhook-based and auto-triggered after OAuth connection. Returns status for each data type independently. Max 30 days of history.

Response Fields:

• overall_status: pending | in_progress | complete | cancelled | retry_in_progress | permanently_failed
• current_window: Current window index (0-based)
• total_windows: Total number of 30-day windows (12)
• windows: Per-window-per-type matrix with done/pending/timed_out/failed states
• summary: Per-type aggregated counts (done, timed_out, failed)
• in_progress: Whether backfill is currently running (true for in_progress or retry_in_progress)
• retry_phase: Whether the retry phase is currently active
• retry_type: Data type currently being retried (null if not retrying)
• retry_window: Window index being retried (null if not retrying)
• attempt_count: Number of GC-and-retry cycles completed
• max_attempts: Maximum GC-and-retry cycles before permanently failed (3)
• permanently_failed: Whether backfill has exhausted all retry attempts

Window Cell States:

• done: Data received via webhook or Garmin API error (treated as done)
• pending: Not yet processed
• timed_out: No webhook received within timeout (warning)
• failed: Permanently failed after retry attempt (error)