LangGraph Checkpointer FileSaver

A file-based checkpointer for LangGraph that stores checkpoints and writes to the filesystem.

Installation

npm install langgraph-checkpointer-filesaver

Usage

import { FileSaver } from 'langgraph-checkpointer-filesaver'

const checkpointer = new FileSaver('./checkpoints')
const graph = new StateGraph(State).compile({ checkpointer })

Development

Building

pnpm build

Testing

The project uses Node.js built-in test runner for testing:

# Run tests once
pnpm test

# Run tests in watch mode
pnpm test:watch