mirror of
https://github.com/hwchase17/langchain
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69 lines
1.7 KiB
Markdown
69 lines
1.7 KiB
Markdown
# langchain-astradb
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This package contains the LangChain integrations for using DataStax Astra DB.
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> DataStax [Astra DB](https://docs.datastax.com/en/astra/home/astra.html) is a serverless vector-capable database built on Apache Cassandra® and made conveniently available
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> through an easy-to-use JSON API.
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_**Note.** For a short transitional period, only some of the Astra DB integration classes are contained in this package (the remaining ones being still in `langchain-community`). In a short while, and surely by version 0.2 of LangChain, all of the Astra DB support will be removed from `langchain-community` and included in this package._
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## Installation and Setup
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Installation of this partner package:
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```bash
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pip install langchain-astradb
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```
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## Integrations overview
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### Vector Store
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```python
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from langchain_astradb import AstraDBVectorStore
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my_store = AstraDBVectorStore(
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embedding=my_embeddings,
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collection_name="my_store",
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api_endpoint="https://...",
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token="AstraCS:...",
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)
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```
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### Chat message history
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```python
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from langchain_astradb import AstraDBChatMessageHistory
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message_history = AstraDBChatMessageHistory(
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session_id="test-session",
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api_endpoint="...",
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token="...",
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)
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```
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### Store
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```python
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from langchain_astradb import AstraDBStore
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store = AstraDBStore(
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collection_name="my_kv_store",
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api_endpoint="...",
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token="..."
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)
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```
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### Byte Store
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```python
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from langchain_astradb import AstraDBByteStore
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store = AstraDBByteStore(
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collection_name="my_kv_store",
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api_endpoint="...",
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token="..."
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)
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```
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## Reference
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See the [LangChain docs page](https://python.langchain.com/docs/integrations/providers/astradb) for a more detailed listing.
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