Could you please tell me how langgraph can listen to external events

LangChain Academy
1

I was trying to understand how ambient agent works one thing i found missing from langchain academic course on Ambient Agents that is how langgraph can listen to specific events in the background.

In the email assistant which they demonstrate in the course, that is listening to events using run_ingest.py file which is kind of adjustment for that email assistant.

But i want to is there any way method or concept in langgraph which offers functionality of listening to external service events.

Please tell me i will appreciate your any response/comment on this

Thank you!

2

Hi! In the ambient agents example we set up a cron job to continuously poll the email for new messages. LangGraph itself can be triggered off of external service events, but usually that involves writing code specific to your service.

The flow would be service event triggered → your listener code → invokes LangGraph agent