🦜 Langchain Express Starter 🚀

A super simple nodejs express API in TypeScript with Langchain history management and file training possibility.

Train and save your model based on provided file sources and save your history in a JSON file.

Install

git clone

npm i
// or
yarn

Add your OpenAPI key at .env

Run it 🚀

npm run dev-local

Run Swagger

localhost:3400/docs

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Feed your LLM

• 📁 Add files to the public/train folder (md, txt, json).

• 🏃 Start your app, and the vector store should be automatically initialized.

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LLM Features

• History Context On each LLM call a historyId can be provided with this to stick to conversations and take them into account on LLM calls.
• Vector Store LLM can be trained by adding files (.txt, .json, .md) into the public/train folder and the result will be saved into the public/vectorStore

General Features

• File upload A FileUploadController to save files for training.

Project Features

• Beautiful Code pleerock.
• Dependency Injection TypeDI.
• Clear Structure layers such as controllers, services, repositories, models, middlewares...
• Easy Exception Handling thanks to routing-controllers.
• Docker thanks to docker.
• Class-based to handle websocket events thanks to socket-controllers.
• Class-based to handle Cron Jobs thanks to cron-decorators.
• API Documentation thanks to swagger a

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MIT - LICENSE NexTech-Fusion.com