This will help you get started with Upstash redis key-value stores. For detailed documentation of all UpstashRedisByteStore features and configurations head to the API reference.

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Overview

The UpstashRedisStore is an implementation of ByteStore that stores everything in your Upstash-hosted Redis instance. To use the base RedisStore instead, see this guide.

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Integration details

ClassPackageLocalJS supportPackage downloadsPackage latest
UpstashRedisByteStorelangchain-community❌✅PyPI - DownloadsPyPI - Version

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Setup

You’ll first need to sign up for an Upstash account. Next, you’ll need to create a Redis database to connect to.

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Credentials

Once you’ve created your database, get your database URL (don’t forget the https://!) and token: 
from getpass import getpass

URL = getpass("Enter your Upstash URL")
TOKEN = getpass("Enter your Upstash REST token")

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Installation

The LangChain Upstash integration lives in the langchain-community package. You’ll also need to install the upstash-redis package as a peer dependency: 
%pip install -qU langchain-community upstash-redis

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Instantiation

Now we can instantiate our byte store: 
from langchain_community.storage import UpstashRedisByteStore
from upstash_redis import Redis

redis_client = Redis(url=URL, token=TOKEN)
kv_store = UpstashRedisByteStore(client=redis_client, ttl=None, namespace="test-ns")

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Usage

You can set data under keys like this using the mset method: 
kv_store.mset(
    [
        ["key1", b"value1"],
        ["key2", b"value2"],
    ]
)

kv_store.mget(
    [
        "key1",
        "key2",
    ]
)

[b'value1', b'value2']
And you can delete data using the mdelete method: 
kv_store.mdelete(
    [
        "key1",
        "key2",
    ]
)

kv_store.mget(
    [
        "key1",
        "key2",
    ]
)

[None, None]

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API reference

For detailed documentation of all UpstashRedisByteStore features and configurations, head to the API reference: python.langchain.com/api_reference/community/storage/langchain_community.storage.upstash_redis.UpstashRedisByteStore.html