curso-langchain/slides/pages/agents/11.md

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Checkpointer: SqliteSaver

SqliteSaver: Persistencia en SQLite (local)

npm install @langchain/langgraph-checkpoint-sqlite

import { createAgent } from "langchain";
import { SqliteSaver } from "@langchain/langgraph-checkpoint-sqlite";

const checkpointer = SqliteSaver.fromConnString("./agent_memory.db");
await checkpointer.setup();  // Crear tablas

const agent = createAgent({
  model: "mistral:mistral-large-latest",
  tools: [weatherTool],
  checkpointer,
});

// El estado persiste aunque reinicies la aplicación

Ideal para desarrollo local y aplicaciones de usuario único