processChat

processChat runs one request/response cycle and returns an SSE Response.

Signature (practical)

TS

await processChat({
  messages,
  options,
  sessionId,
  defaultWorkflowId,
  loadRuntimeConfig,
  selectWorkflow, // or workflowRegistry
  frameworkAdapter,
  getProvider,
  initializeProviders,
  memoryAdapter,
  applyResumeSelection,
});

What it does

loads runtime config (loadRuntimeConfig)
optionally initializes providers (initializeProviders)
resolves a workflow (selectWorkflow / workflowRegistry)
builds initial state (buildInitialGraphState)
handles resume flow if last message carries resume metadata
compiles graph (createLangGraph)
orchestrates stream (orchestrateGraphStream)
returns createStreamResponse(...)

Workflow override per request

When not resuming, options.workflowId (or options.workflow) can override entry workflow for this request.

Resume customization

applyResumeSelection lets you map selected interrupt options into state patches before resuming.