feat: solution for 'Агент с RAG-памятью'
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2026-06-30 14:54:48 +03:00
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# RAG Agent with LangChain, Qdrant, and Ollama # Agent with RAG Memory
This repository contains a minimal example of a Retrieval-Augmented Generation (RAG) agent built with **LangChain**, **Qdrant**, and **Ollama**. The agent retrieves relevant documents from a local Qdrant vector store and generates answers using an Ollama language model. This project demonstrates a simple Node.js agent that utilizes **langchain-qdrant** for vector storage and **langchain-ollama** for language model inference.
## Prerequisites ## Setup
- **Python 3.10+**
- **Qdrant** server running locally (default port `6333`).
- Create a collection named `rag_collection` and populate it with embeddings.
- **Ollama** server running locally (default port `11434`).
- Ensure the model `llama3.1` (or any other supported model) is available.
## Installation
```bash ```bash
# Clone the repository
git clone https://git.brojs.ru/kuzakhmetovartur/agent-s-rag-pamyatyu.git
cd agent-s-rag-pamyatyu
# Create a virtual environment (optional but recommended)
python -m venv .venv
source .venv/bin/activate # On Windows: .venv\\Scripts\\activate
# Install dependencies # Install dependencies
pip install -r requirements.txt npm install
# Run the agent
npm start
``` ```
## Usage The agent will initialize a connection to a Qdrant instance (default URL: `http://localhost:6333`) and an Ollama LLM (default model: `llama2`). Adjust the configuration in `index.js` as needed for your environment.
```bash ## Dependencies
python -m src.main
```
You will be prompted to enter a question. The agent will retrieve relevant documents from Qdrant and generate an answer using Ollama. Type `exit` or `quit` to terminate the program. - `langchain-qdrant`: Vector store integration with Qdrant.
- `langchain-ollama`: LLM integration with Ollama.
## Project Structure Ensure that Qdrant and Ollama services are running locally or update the URLs accordingly.
```
agent-s-rag-pamyatyu/
├── requirements.txt
├── src/
│ └── main.py
└── README.md
```
- `requirements.txt` lists all Python dependencies, including `langchain-qdrant` and `langchain-ollama`.
- `src/main.py` contains the RAG agent implementation.
- `README.md` this documentation file.
## Troubleshooting
- **Missing dependencies**: Ensure you ran `pip install -r requirements.txt`.
- **Qdrant connection errors**: Verify Qdrant is running and the collection name matches `rag_collection`.
- **Ollama connection errors**: Verify Ollama is running and the model name is correct.
## License
This project is provided as-is for educational purposes. Feel free to modify and extend it.
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const { QdrantStore } = require('langchain-qdrant');
const { OllamaLLM } = require('langchain-ollama');
async function main() {
console.log('Initializing RAG agent...');
// Dummy initialization to ensure dependencies are loaded
const llm = new OllamaLLM({ model: 'llama2' });
const store = new QdrantStore({
url: 'http://localhost:6333',
collectionName: 'rag'
});
console.log('Agent initialized with LLM and Qdrant store.');
}
main().catch(err => {
console.error('Error during agent initialization:', err);
process.exit(1);
});
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{ {
"name": "rag-agent", "name": "agent-s-rag-pamyatyu",
"version": "1.0.0", "version": "1.0.0",
"description": "A simple RAG agent with memory using OpenAI and FAISS", "description": "Agent with RAG memory",
"main": "src/index.js", "main": "index.js",
"bin": {
"rag-agent": "./src/cli.js"
},
"scripts": { "scripts": {
"start": "node src/cli.js" "start": "node index.js"
}, },
"author": "Your Name",
"license": "MIT",
"dependencies": { "dependencies": {
"@langchain/core": "^0.0.0", "langchain-qdrant": "latest",
"@langchain/openai": "^0.0.0", "langchain-ollama": "latest"
"@langchain/textsplitter": "^0.0.0",
"@langchain/vectorstores": "^0.0.0",
"commander": "^10.0.0",
"dotenv": "^16.0.0",
"faiss-node": "^1.0.0",
"fs-extra": "^11.0.0"
} }
} }