requirements.txt

# Core API Framework
fastapi==0.109.0
uvicorn[standard]==0.27.0
pydantic==2.7.4
pydantic-settings==2.4.0

# Embedding Service
openai==1.68.2  # Pin to compatible version with litellm 1.75.0
litellm==1.75.0

# Vector Database
qdrant-client==1.15.0

# Cache
redis==5.0.1
hiredis==2.3.2

# Evaluation
# Pin langchain versions to avoid dependency resolution issues
langchain==0.3.27
langchain-core==0.3.72
langchain-community==0.3.27
langchain-text-splitters==0.3.9
langsmith==0.4.10
ragas==0.3.0
arize-phoenix==11.24.1
mlflow==3.1.4

# Testing
pytest==7.4.4
pytest-asyncio==0.23.3
httpx==0.26.0
pytest-cov==4.1.0

# Development Tools
ruff==0.1.11
mypy==1.8.0
black==23.12.1

# Utilities
python-dotenv==1.0.0
python-multipart==0.0.6
numpy==1.26.4
tenacity==8.2.3

# Text Processing and BM25
rank-bm25==0.2.2
nltk==3.8.1
python-slugify==8.0.1

# Cross-Encoder Reranking
sentence-transformers==2.7.0
huggingface-hub>=0.19.0

# Learning to Rank (LTR)
xgboost>=2.0.0
scikit-learn>=1.3.0
Levenshtein>=0.21.0

# Performance Testing
locust==2.20.0