42 lines
1.5 KiB
Python
42 lines
1.5 KiB
Python
from langchain.vectorstores import Weaviate
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from langchain_weaviate.vectorstores import WeaviateVectorStore
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import weaviate
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from weaviate.classes.init import Auth
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from weaviate.config import AdditionalConfig, Timeout
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from embedding import WeaviateCustomEmbeddings
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import os
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http_host = os.getenv("WEAVIATE_HTTP_HOST", "183.111.96.67")
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grpc_host = os.getenv("WEAVIATE_GRPC_HOST", "183.111.96.67")
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weaviate_api_key = os.getenv("WEAVIATE_API_KEY", "01jse60hwsf37za5kmnkzzcwa9")
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def get_retriever():
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client = weaviate.connect_to_custom(
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http_host=http_host, # Hostname for the HTTP API connection
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http_port=32656, # Default is 80, WCD uses 443
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http_secure=False, # Whether to use https (secure) for the HTTP API connection
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grpc_host=grpc_host, # Hostname for the gRPC API connection
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grpc_port=30498, # Default is 50051, WCD uses 443
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grpc_secure=False, # Whether to use a secure channel for the gRPC API connection
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auth_credentials=Auth.api_key(weaviate_api_key), # API key for authentication
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)
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embedding = WeaviateCustomEmbeddings()
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vectorstore = WeaviateVectorStore(
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client=client,
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index_name="Loca",
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text_key="page_content",
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embedding=embedding,
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attributes=["source", "page_content"]
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)
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retriever = vectorstore.as_retriever(
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search_kwargs={
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"k": 5
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}
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)
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return retriever
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