Jul 5, 2026 · Backend Development

Full Hands‑On Guide: Extending Spring AI Workflow Engine with Human‑in‑the‑Loop Approval

This article walks through adding a zero‑dependency human‑approval node to a Spring AI YAML‑DSL workflow engine, detailing the problem of critical business decisions, the JDK‑based pause‑and‑resume architecture, step‑by‑step code changes, best‑practice recommendations, and real‑world use cases such as large‑payment and content‑review approvals.

Backend developmentHuman-in-the-loopJava Concurrency

0 likes · 24 min read

Full Hands‑On Guide: Extending Spring AI Workflow Engine with Human‑in‑the‑Loop Approval

The Dominant Programmer

Jun 3, 2026 · Backend Development

Building a LangGraph‑Style YAML DSL Workflow Engine with Spring AI

This article walks through constructing a lightweight YAML‑based DSL workflow engine on Spring AI 1.1.2 and Ollama, showing how to define state graphs, register tools, parse and execute nodes—including conditional edges, while loops, and parallel branches—without external orchestration tools.

LangGraphSpring AIWorkflow Engine

0 likes · 17 min read

Building a LangGraph‑Style YAML DSL Workflow Engine with Spring AI