LangChain Reference home pageLangChain ReferenceLangChain Reference
  • GitHub
  • Main Docs
Deep Agents
LangChain
LangGraph
Integrations
LangSmith
LangGraph
  • Web
  • Channels
  • Pregel
  • Prebuilt
  • Remote
React SDK
Vue SDK
Svelte SDK
Angular SDK
LangGraph SDK
  • Ui
  • Client
  • Auth
  • React
  • Logging
  • React Ui
  • Utils
  • Server
  • Stream
LangGraph Checkpoint
LangGraph Checkpoint MongoDB
LangGraph Checkpoint Postgres
  • Store
LangGraph Checkpoint Redis
  • Shallow
  • Store
LangGraph Checkpoint SQLite
LangGraph Checkpoint Validation
  • Cli
LangGraph API
LangGraph CLI
LangGraph CUA
  • Utils
LangGraph Supervisor
LangGraph Swarm
⌘I

LangChain Assistant

Ask a question to get started

Enter to send•Shift+Enter new line

Menu

LangGraph
WebChannelsPregelPrebuiltRemote
React SDK
Vue SDK
Svelte SDK
Angular SDK
LangGraph SDK
UiClientAuthReactLoggingReact UiUtilsServerStream
LangGraph Checkpoint
LangGraph Checkpoint MongoDB
LangGraph Checkpoint Postgres
Store
LangGraph Checkpoint Redis
ShallowStore
LangGraph Checkpoint SQLite
LangGraph Checkpoint Validation
Cli
LangGraph API
LangGraph CLI
LangGraph CUA
Utils
LangGraph Supervisor
LangGraph Swarm
Language
Theme
JavaScript@langchain/langgraphindexStreamEmitterpush
Method●Since v0.3

push

Injects a new ProtocolEvent into the mux pipeline. The event is routed through every registered transformer (including the emitting transformer — implementers must guard against re-entrant self-processing) and, if not suppressed, appended to the main event log.

Copy
push(ns: Namespace, event: ProtocolEvent)

Parameters

NameTypeDescription
ns*Namespace

Target namespace for the synthetic event.

event*ProtocolEvent

The event envelope to inject. event.seq is overwritten by the mux; callers can pass any placeholder.

View source on GitHub