This project is an experiment using Langchain.js to build various AI-driven tools, including chat interfaces, question-answer systems based on PDFs and YouTube videos, search functionality over arrays of objects, and function-calling for tasks like calculating math expressions or generating images using DALL-E.
This repository contains several Node.js scripts that demonstrate various capabilities using Langchain.js. The project is purely backend and operates via command-line tools, focusing on:
- Chat Interface: Real-time question-answering through a command-line chat tool.
- PDF-Based Q&A: Command-line tool to extract and answer questions from PDF documents.
- YouTube Video Q&A: Command-line tool to process and answer questions from YouTube video.
- Array-Based Search: Command-line search tool for querying an array of objects.
- Function Calling: Command-line tool to perform tasks like math calculations or generating images using DALL-E.
Ensure you have the following installed:
- Node.js (>= 20.x.x)
- OpenAI API key
To configure the project, follow these steps:
- Create a
.envfile in the root directory of the project. - Add your OpenAI API key to the
.envfile as shown below:
OPENAI_API_KEY=your_openai_api_key_here
Clone the repository:
git clone [email protected]:jaypatel1210/Langchain-Experiment-NodeJS.git
cd langchainjs-experiment
Install the dependencies:
npm install
Run the chat interface for real-time question answering:
node chat.js
Extract and answer questions from a PDF or YouTube video
node question-answer.js "What is docker?"
node question-answer.js "How to connect PS5 controller?"
Perform a search over an array of objects:
node search.js "I want to watch an action movie"
Calculate a math expression or generate an image using DALL-E:
node function-calling.js "calculate 3 + 5 - 10"
node function-calling.js "generate image of house in snow"