Upstash Vector Store

We’re going to look at how to use LlamaIndex to interface with Upstash Vector!

! pip install llama-index upstash-vector

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[notice] A new release of pip is available: 23.3.1 -> 24.0
[notice] To update, run: pip install --upgrade pip

from llama_index import VectorStoreIndex, SimpleDirectoryReader
from llama_index.vector_stores import UpstashVectorStore
from llama_index.storage.storage_context import StorageContext
import textwrap
import openai

# Setup the OpenAI API
openai.api_key = "sk-..."

# Download data
! mkdir -p 'data/paul_graham/'
! wget 'https://raw.githubusercontent.com/run-llama/llama_index/main/docs/examples/data/paul_graham/paul_graham_essay.txt' -O 'data/paul_graham/paul_graham_essay.txt'

--2024-02-03 20:04:25--  https://raw.githubusercontent.com/run-llama/llama_index/main/docs/examples/data/paul_graham/paul_graham_essay.txt
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 185.199.108.133, 185.199.109.133, 185.199.110.133, ...
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|185.199.108.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 75042 (73K) [text/plain]
Saving to: ‘data/paul_graham/paul_graham_essay.txt’

data/paul_graham/pa 100%[===================>]  73.28K  --.-KB/s    in 0.01s   

2024-02-03 20:04:25 (5.96 MB/s) - ‘data/paul_graham/paul_graham_essay.txt’ saved [75042/75042]

Now, we can load the documents using the LlamaIndex SimpleDirectoryReader

documents = SimpleDirectoryReader("./data/paul_graham/").load_data()

print("# Documents:", len(documents))

# Documents: 1

To create an index on Upstash, visit https://console.upstash.com/vector, create an index with 1536 dimensions and Cosine distance metric. Copy the URL and token below

vector_store = UpstashVectorStore(url="https://...", token="...")

storage_context = StorageContext.from_defaults(vector_store=vector_store)
index = VectorStoreIndex.from_documents(
    documents, storage_context=storage_context
)

Now we’ve successfully created an index and populated it with vectors from the essay! The data will take a second to index and then it’ll be ready for querying.

query_engine = index.as_query_engine()
res1 = query_engine.query("What did the author learn?")
print(textwrap.fill(str(res1), 100))

print("\n")

res2 = query_engine.query("What is the author's opinion on startups?")
print(textwrap.fill(str(res2), 100))

The author learned that the study of philosophy in college did not live up to their expectations.
They found that other fields took up most of the space of ideas, leaving little room for what they
perceived as the ultimate truths that philosophy was supposed to explore. As a result, they decided
to switch to studying AI.


The author's opinion on startups is that they are in need of help and support, especially in the
beginning stages. The author believes that founders of startups are often helpless and face various
challenges, such as getting incorporated and understanding the intricacies of running a company. The
author's investment firm, Y Combinator, aims to provide seed funding and comprehensive support to
startups, offering them the guidance and resources they need to succeed.