SEND YOUR APP SEND EVENT ONE API CALL SVIX API PERSIST 2-4 REPLICAS QUEUE TASK REDIS WORKERS SIGN + SEND N REPLICAS ENDPOINT 200 OK YOUR CUSTOMER THE API NEVER WAITS ON YOUR CUSTOMER'S SERVER ON FAILURE QUEUE RETRY 5 SEC THEN BACKOFF WORKERS LOG ATTEMPT STATUS + BODY ENDPOINT TIMEOUT DOWN RETRIES FOLLOW EXPONENTIAL BACKOFF FOR 2 DAYS