agent-q&a

Langgraph4j Question & Answer Agent

This is a Langgraph4j Human-in-the-Loop (HITL) use case , using interruption and resume through Checkpoints.

‼️Note:

This is a proof-of-concept to give a guideline on how implement HITL, the LLM reasoning is simulated

The example provides both a CLI based chat and a REST API for help implementing an online chat

Graph Definition

---
title: Agent Q&A
---
flowchart TD
	__START__((start))
	__END__((stop))
	ask_country("ask_country")
	wait_for_country("wait_for_country")
	ask_city("ask_city")
	wait_for_city("wait_for_city")
	show_weather("show_weather")
	__START__:::__START__ --> ask_country:::ask_country
	ask_country:::ask_country --> wait_for_country:::wait_for_country
	wait_for_country:::wait_for_country --> ask_city:::ask_city
	ask_city:::ask_city --> wait_for_city:::wait_for_city
	wait_for_city:::wait_for_city --> show_weather:::show_weather
	show_weather:::show_weather --> __END__:::__END__

	classDef ___START__ fill:black,stroke-width:1px,font-size:xx-small;
	classDef ___END__ fill:black,stroke-width:1px,font-size:xx-small;

Loading

Test Scenario

User	How is the weather today?
Agent	Which country do you live in?
User	Germany
Agent	For which city would you like the forecast?
User	Berlin
Agent	The temperature in Berlin is 35 °C.

Run example

spring-boot:run