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Web Channels Pregel Prebuilt Remote

Ui Client Auth React Logging React Ui Utils Server Stream

LangGraph Checkpoint

LangGraph Checkpoint MongoDB

LangGraph Checkpoint Postgres

LangGraph Checkpoint Redis

LangGraph Checkpoint SQLite

LangGraph Checkpoint Validation

LangGraph Supervisor

LangGraph Swarm

Language

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JavaScript@langchain/langgraphindexProtocolEventtype

Property●Since v0.3

type

Discriminator; always "event" for this shape.

Copy

type: "event"

Used in Docs

Backends
Build a personal assistant with subagents
Build a SQL assistant with on-demand skills
Build customer support with handoffs
Choosing between Graph and Functional APIs

View source on GitHub