Architectures

Production systems, in miniature.

Open a blueprint to watch a live message-flow simulation built for that topology — not the generic simulator.

Checkout → orders.fifo → fulfillment workers, with a DLQ for poison orders.

Idempotent payment processor with exponential backoff and a fraud-review DLQ.

Burst-tolerant outbound email throttled by SES sandbox limits.

Long-running jobs (90s+) with heartbeat-extended visibility timeout.

One publish, three subscribers, fully decoupled.

FIFO per rider, parallel across riders.

Order assignment with dedup + visibility-based reassignment.