LightRAG/examples/lightrag_bedrock_demo.py

"""
LightRAG meets Amazon Bedrock ⛰️
"""

import os
import logging

from lightrag import LightRAG, QueryParam
from lightrag.llm import bedrock_complete, bedrock_embedding
from lightrag.utils import EmbeddingFunc

logging.getLogger("aiobotocore").setLevel(logging.WARNING)

WORKING_DIR = "./dickens"
if not os.path.exists(WORKING_DIR):
    os.mkdir(WORKING_DIR)

rag = LightRAG(
    working_dir=WORKING_DIR,
    llm_model_func=bedrock_complete,
    llm_model_name="Anthropic Claude 3 Haiku // Amazon Bedrock",
    embedding_func=EmbeddingFunc(
        embedding_dim=1024,
        max_token_size=8192,
        func=bedrock_embedding
    )
)

with open("./book.txt", 'r', encoding='utf-8') as f:
    rag.insert(f.read())

for mode in ["naive", "local", "global", "hybrid"]:
    print("\n+-" + "-" * len(mode) + "-+")
    print(f"| {mode.capitalize()} |")
    print("+-" + "-" * len(mode) + "-+\n")
    print(
        rag.query(
            "What are the top themes in this story?",
            param=QueryParam(mode=mode)
        )
    )