Real-World Workflow Stacks

Compare how production companies implement the same pattern with different engines.

In practice

Stripe Checkout is a hosted multistep UI over PaymentIntents sagas. Airbnb host onboarding chains identity, payout, and listing steps with manual gates. Banks use Camunda or custom mainframes with the same state-machine thinking.

Key Takeaways

E-commerce checkout: cart → hold inventory → charge → fulfill → notify.
Onboarding KYC: upload ID → vendor verify → manual review → activate.
Loan origination: apply → credit pull → underwrite → fund → servicer handoff.
Each step is a service boundary; workflow engine is the spine.
Observability: trace ID per saga instance across all HTTP and queue hops.
Dead-letter queues capture poison steps without losing the saga context.

checkoutKYCworkflowobservabilityDLQsaga QPS

← Durable Execution and Retries