Gen-AI Developer Classroom notes 20/Dec/2025

Human in the loop (HITL)

• Refer Here
• In langgraph HITL is implemented by
  • interrupt(payload) -> pause exection and surface payload to caller
  • Persistence(checkpointer) => saves the state at pause point
  • Command() -> continue later with the human’s input
• Refer Here for the changes.

Enterprise Notification’s

• Options
  • Email
  • Slack
  • Teams
• Also store about the notification in some database
• Authentication.

Lets implement Email Based

• Email: We will use mailtrap

• Refer Here for changes