Iron Law

NO WORKFLOW WITHOUT DETERMINISM ENFORCEMENT AND IDEMPOTENT ACTIVITIES — non-deterministic workflow code causes replay failures; non-idempotent activities cause duplicate charges, double-sends, and data corruption

Workflow Orchestration Patterns — Temporal + Java 21 / Python 3.14 / NestJS 11.x

Quick Scaffold

# Start Temporal server locally (Docker)
docker run -d --name temporal \
  -p 7233:7233 -p 8080:8080 \
  temporalio/auto-setup:1.24

# Java 21 / Spring Boot — add to pom.xml
# io.temporal:temporal-sdk:1.25.0
# io.temporal:temporal-spring-boot-autoconfigure-alpha:0.6.0