Customer.io Reliability Patterns Overview Implement fault-tolerant Customer.io integrations: circuit breaker (stop cascading failures), retry with jitter (handle transient errors), fallback queue (survive outages), idempotency guard (prevent duplicates), and graceful degradation (never crash your app for analytics). Prerequisites - Working Customer.io integration - Understanding of failure modes (429, 5xx, timeouts, DNS failures) - Redis (recommended for queue-based patterns) Instructions Pattern 1: Circuit Breaker Pattern 2: Retry with Jitter Pattern 3: Fallback Queue Pattern 4: Resilient Cl…