Module Overview
Design durable and fault-tolerant multi-step automation: idempotency, retries, scheduling, long-running tasks, and human approval steps. Emphasizes design patterns that avoid duplicate work and data loss.
Learning Objectives
- Design workflows that tolerate transient failures and avoid duplicate processing.
- Use idempotency keys and checkpointing to support safe retries.
- Model long-running processes with human approvals and timeout handling.
Lesson-by-Lesson Breakdown
Durable architecture patterns and idempotency basics.
Retry/backoff strategies and exponential backoff design.
Scheduling and cron-like patterns.
Long-running tasks and checkpointing approaches.
Human-in-the-loop approval steps and notification patterns.
Hands-on Activities & Deliverables
Activities
Design and prototype a resilient file-processing workflow with deduplication and retry policies.
📦 Deliverable
Architecture diagram, sample code/snippets, test results demonstrating resilience.
Required Tools & Readings
Diagrams of durable workflows, sample code for idempotency keys.
Assessment & Rubric
- Resilience & correctness of design50%
- Clarity of diagrams & runbook30%
- Test reproducibility20%
Prerequisites
Modules 1–3 recommended.
Parent-Friendly Value
Students deliver automations that are realistic for production use, not fragile prototypes.