[add] migrate chromadb to plugin
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This commit is contained in:
Evan Reichard 2023-11-08 18:34:55 -05:00
parent cf8e023b82
commit 7f0d74458d
12 changed files with 123 additions and 111 deletions

1
.gitignore vendored
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@ -2,6 +2,7 @@ __pycache__
.DS_Store
.direnv
data
datasets
venv
openai_key
ha_key

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@ -13,12 +13,44 @@
---
AI Chat Bot with Plugins (Home Assistant, Vehicle Lookup, DuckDuckGo Search)
AI Chat Bot with Plugins (RAG VectorDB - ChromaDB, DuckDuckGo Search, Home Assistant, Vehicle Lookup)
[![Build Status](https://drone.va.reichard.io/api/badges/evan/minyma/status.svg)](https://drone.va.reichard.io/evan/minyma)
## Plugins
### ChromeDB Embeddings / Vectors
This utilizes a local embeddings DB. This allows you to ask the assistant
about local information. [Utilizes Retrieval-Augmented Generation (RAG)](https://arxiv.org/abs/2005.11401).
```
User: What are some common symptoms of COVID-19?
Assistant: Some common symptoms of COVID-19 mentioned in the context are
fatigue, headache, dyspnea (shortness of breath), anosmia (loss of
sense of smell), lower respiratory symptoms, cardiac symptoms,
concentration or memory issues, tinnitus and earache, and peripheral
neuropathy symptoms.
```
**NOTE:** Instructions on how to load this with your own information are in the
"Normalizing & Loading Data" section. We include a PubMed data normalizer as an
example.
### DuckDuckGo
This utilizes DuckDuckGo Search by scraping the top 5 results.
```
User: Tell me about Evan Reichard
Assistant: Evan Reichard is a Principal Detection and Response Engineer based
in the Washington DC-Baltimore Area. He has been in this role since
August 2022. Evan has created a browser extension that helps SOC
analysts and saves them over 300 hours per month. Additionally,
there are three professionals named Evan Reichard on LinkedIn and
there are also profiles of people named Evan Reichard on Facebook.
```
### Vehicle Lookup API
This utilizes Carvana's undocumented API to lookup details on a vehicle.
@ -41,25 +73,12 @@ User: Turn on the living room lights
Assistant: The living room lights have been turned on successfully.
```
### DuckDuckGo
This utilizes DuckDuckGo Search by scraping the top 5 results.
```
User: Tell me about Evan Reichard
Assistant: Evan Reichard is a Principal Detection and Response Engineer based
in the Washington DC-Baltimore Area. He has been in this role since
August 2022. Evan has created a browser extension that helps SOC
analysts and saves them over 300 hours per month. Additionally,
there are three professionals named Evan Reichard on LinkedIn and
there are also profiles of people named Evan Reichard on Facebook.
```
## Running Server
```bash
# Locally (See "Development" Section)
export OPENAI_API_KEY=`cat openai_key`
export CHROMA_DATA_PATH=/data
export HOME_ASSISTANT_API_KEY=`cat ha_key`
export HOME_ASSISTANT_URL=https://some-url.com
@ -69,7 +88,7 @@ minyma server run
docker run \
-p 5000:5000 \
-e OPENAI_API_KEY=`cat openai_key` \
-e DATA_PATH=/data \
-e CHROMA_DATA_PATH=/data \
-v ./data:/data \
gitea.va.reichard.io/evan/minyma:latest
```
@ -87,10 +106,10 @@ To normalize data, you can use Minyma's `normalize` CLI command:
```bash
minyma normalize \
--filename ./pubmed_manuscripts.jsonl \
--normalizer pubmed \
--database chroma \
--datapath ./chroma
--datapath ./data \
--filename ./datasets/pubmed_manuscripts.jsonl
```
The above example does the following:
@ -105,10 +124,12 @@ The above example does the following:
## Configuration
| Environment Variable | Default Value | Description |
| -------------------- | ------------- | ---------------------------------------------------------------------------------- |
| OPENAI_API_KEY | NONE | Required OpenAI API Key for ChatGPT access. |
| DATA_PATH | ./data | The path to the data directory. Chroma will store its data in the `chroma` subdir. |
| Environment Variable | Default Value | Description |
| ---------------------- | ------------- | ----------------------------------- |
| OPENAI_API_KEY | NONE | Required OpenAI API Key for ChatGPT |
| CHROMA_DATA_PATH | NONE | ChromaDB Persistent Data Director |
| HOME_ASSISTANT_API_KEY | NONE | Home Assistant API Key |
| HOME_ASSISTANT_URL | NONE | Home Assistant Instance URL |
# Development
@ -120,31 +141,9 @@ python3 -m venv venv
# Local Development
pip install -e .
# Creds
# Creds & Other Environment Variables
export OPENAI_API_KEY=`cat openai_key`
# Docker
make docker_build_local
```
# Notes
This is the first time I'm doing anything LLM related, so it was an adventure.
Initially I was entertaining OpenAI's Embedding API with plans to load embeddings
into Pinecone, however initial calculations with `tiktoken` showed that generating
embeddings would cost roughly $250 USD.
Fortunately I found [Chroma](https://www.trychroma.com/), which basically solved
both of those issues. It allowed me to load in the normalized data and automatically
generated embeddings for me.
In order to fit into OpenAI ChatGPT's token limit, I limited each document to roughly
1000 words. I wanted to make sure I could add the top two matches as context while
still having enough headroom for the actual question from the user.
A few notes:
- Context is not carried over from previous messages
- I "stole" the prompt that is used in LangChain (See `oai.py`). I tried some variations without much (subjective) improvement.
- A generalized normalizer format. This should make it fairly easy to use completely different data. Just add a new normalizer that implements the super class.
- Basic web front end with TailwindCSS

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@ -16,15 +16,14 @@ def signal_handler(sig, frame):
def create_app():
global oai, vdb, plugins
global oai, plugins
from minyma.config import Config
import minyma.api.common as api_common
import minyma.api.v1 as api_v1
app = Flask(__name__)
vdb = ChromaDB(path.join(Config.DATA_PATH, "chroma"))
oai = OpenAIConnector(Config.OPENAI_API_KEY, vdb)
oai = OpenAIConnector(Config.OPENAI_API_KEY)
plugins = PluginLoader(Config)
app.register_blueprint(api_common.bp)
@ -70,7 +69,7 @@ def normalize(filename, normalizer, database, datapath):
return print("INVALID NORMALIZER:", normalizer)
# Process Data
vdb.load_documents(norm)
vdb.load_documents(norm.name, norm)
signal.signal(signal.SIGINT, signal_handler)

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@ -19,7 +19,7 @@ class Config:
OpenAI API Key - Required
"""
DATA_PATH: str = get_env("DATA_PATH", default="./data")
OPENAI_API_KEY: str = get_env("OPENAI_API_KEY", required=True)
CHROMA_DATA_PATH: str = get_env("CHROMA_DATA_PATH", required=False)
HOME_ASSISTANT_API_KEY: str = get_env("HOME_ASSISTANT_API_KEY", required=False)
HOME_ASSISTANT_URL: str = get_env("HOME_ASSISTANT_URL", required=False)
OPENAI_API_KEY: str = get_env("OPENAI_API_KEY", required=True)

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@ -18,6 +18,7 @@ class PubMedNormalizer(DataNormalizer):
normalized inside the iterator.
"""
def __init__(self, file: TextIOWrapper):
self.name = "pubmed"
self.file = file
self.length = 0

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@ -3,22 +3,8 @@ from textwrap import indent
from dataclasses import dataclass
from typing import Any, List
import openai
from minyma.vdb import VectorDB
import minyma
# Stolen LangChain Prompt
PROMPT_TEMPLATE = """
Use the following pieces of context to answer the question at the end.
If you don't know the answer, just say that you don't know, don't try to
make up an answer.
{context}
Question: {question}
Helpful Answer:
"""
INITIAL_PROMPT_TEMPLATE = """
You are a helpful assistant. You are connected to various external functions that can provide you with more personalized and up-to-date information and have already been granted the permissions to execute these functions at will. DO NOT say you don't have access to real time information, instead attempt to call one or more of the listed functions:
@ -47,8 +33,7 @@ class ChatCompletion:
usage: dict
class OpenAIConnector:
def __init__(self, api_key: str, vdb: VectorDB):
self.vdb = vdb
def __init__(self, api_key: str):
self.model = "gpt-3.5-turbo"
self.word_cap = 1000
openai.api_key = api_key
@ -102,7 +87,8 @@ class OpenAIConnector:
# Build Response Text
response_content_arr = []
for key, val in func_responses.items():
response_content_arr.append("- %s\n%s" % (key, val))
indented_val = indent(val, ' ' * 2)
response_content_arr.append("- %s\n%s" % (key, indented_val))
response_content = "\n".join(response_content_arr)
# Create Follow Up Prompt
@ -137,26 +123,3 @@ class OpenAIConnector:
"total_tokens": total_tokens
}
}
def old_query(self, question: str) -> Any:
# Get related documents from vector db
related = self.vdb.get_related(question)
# Validate results
all_docs = related.get("docs", [])
if len(all_docs) == 0:
return { "error": "No Context Found" }
# Join on new line (cap @ word limit), generate main prompt
reduced_docs = list(map(lambda x: " ".join(x.split()[:self.word_cap]), all_docs))
context = '\n'.join(reduced_docs)
prompt = PROMPT_TEMPLATE.format(context = context, question = question)
# Query OpenAI ChatCompletion
response = openai.ChatCompletion.create(
model=self.model,
messages=[{"role": "user", "content": prompt}]
)
# Return Response
return { "llm": response, "vdb": related }

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@ -38,7 +38,6 @@ class PluginLoader:
for func_obj in plugin.functions:
func_name = func_obj.__name__
function_name = "%s_%s" % (plugin_name, func_name)
signature = inspect.signature(func_obj)
params = list(
@ -48,8 +47,12 @@ class PluginLoader:
)
)
func_def = "%s(%s)" % (function_name, ", ".join(params))
defs[function_name] = { "func": func_obj, "def": func_def }
if func_name in defs:
print("[PluginLoader] Error: Duplicate Function: (%s) %s" % (plugin_name, func_name))
continue
func_def = "%s(%s)" % (func_name, ", ".join(params))
defs[func_name] = { "func": func_obj, "def": func_def }
return defs

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@ -0,0 +1,41 @@
from textwrap import indent
from minyma.plugin import MinymaPlugin
from minyma.vdb import ChromaDB
class ChromaDBPlugin(MinymaPlugin):
"""Perform Local VectorDB Lookup
ChromDB can access multiple "collections". You can add additional functions
here that just access a different collection (i.e. different data)
"""
def __init__(self, config):
self.name = "chroma_db"
self.config = config
if not config.CHROMA_DATA_PATH:
self.functions = []
else:
self.vdb = ChromaDB(config.CHROMA_DATA_PATH)
self.functions = [self.lookup_pubmed_data]
def __lookup_data(self, collection_name: str, query: str):
# Get Related
related = self.vdb.get_related(collection_name, query)
# Normalize Data
return list(
map(
lambda x: " ".join(x.split()[:self.vdb.word_cap]),
related.get("docs", [])
)
)
def lookup_pubmed_data(self, query: str):
COLLECTION_NAME = "pubmed"
documents = self.__lookup_data(COLLECTION_NAME, query)
context = '\n'.join(documents)
return context

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@ -14,9 +14,9 @@ class DuckDuckGoPlugin(MinymaPlugin):
def __init__(self, config):
self.config = config
self.name = "duck_duck_go"
self.functions = [self.search]
self.functions = [self.duck_duck_go_search]
def search(self, query: str):
def duck_duck_go_search(self, query: str):
"""Search DuckDuckGo"""
resp = requests.get("https://html.duckduckgo.com/html/?q=%s" % query, headers=HEADERS)
soup = BeautifulSoup(resp.text, features="html.parser")

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@ -9,7 +9,7 @@ class HomeAssistantPlugin(MinymaPlugin):
def __init__(self, config):
self.config = config
self.name = "home_automation"
self.name = "home_assistant"
if not config.HOME_ASSISTANT_API_KEY or not config.HOME_ASSISTANT_URL:
@ -20,9 +20,9 @@ class HomeAssistantPlugin(MinymaPlugin):
self.functions = []
else:
self.functions = [self.command]
self.functions = [self.home_automation_command]
def command(self, natural_language_command: str):
def home_automation_command(self, natural_language_command: str):
url = urllib.parse.urljoin(self.config.HOME_ASSISTANT_URL, "/api/conversation/process")
headers = {
"Authorization": "Bearer %s" % self.config.HOME_ASSISTANT_API_KEY,

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@ -14,7 +14,7 @@ class VehicleLookupPlugin(MinymaPlugin):
def __init__(self, config):
self.config = config
self.name = "vehicle_state_plate"
self.functions = [self.lookup]
self.functions = [self.lookup_vehicle_by_state_plate]
def __query_api(self, url, json=None, headers=None):
# Perform Request
@ -39,7 +39,7 @@ class VehicleLookupPlugin(MinymaPlugin):
return None, text, error
def lookup(self, state_abbreviation: str, licence_plate: str):
def lookup_vehicle_by_state_plate(self, state_abbreviation: str, licence_plate: str):
CARVANA_URL = (
"https://apim.carvana.io/trades/api/v5/vehicleconfiguration/plateLookup/%s/%s"
% (state_abbreviation, licence_plate)

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@ -18,11 +18,11 @@ def chunk(iterable, chunk_size: int):
VectorDB Interface
"""
class VectorDB:
def load_documents(self, normalizer: DataNormalizer):
pass
def load_documents(self, name: str, normalizer: DataNormalizer, chunk_size: int = 10):
raise NotImplementedError("VectorDB must implement load_documents")
def get_related(self, question: str) -> Any:
pass
def get_related(self, name: str, question: str) -> Any:
raise NotImplementedError("VectorDB must implement get_related")
"""
ChromaDV VectorDB Type
@ -31,12 +31,13 @@ class ChromaDB(VectorDB):
def __init__(self, path: str):
self.client: API = chromadb.PersistentClient(path=path)
self.word_cap = 2500
self.collection_name: str = "vdb"
self.collection: chromadb.Collection = self.client.create_collection(name=self.collection_name, get_or_create=True)
def get_related(self, question: str) -> Any:
def get_related(self, name: str, question: str) -> Any:
# Get or Create Collection
collection = chromadb.Collection = self.client.create_collection(name=name, get_or_create=True)
"""Returns line separated related docs"""
results = self.collection.query(
results = collection.query(
query_texts=[question.lower()],
n_results=2
)
@ -53,7 +54,11 @@ class ChromaDB(VectorDB):
"ids": all_ids
}
def load_documents(self, normalizer: DataNormalizer, chunk_size: int = 10):
def load_documents(self, name: str, normalizer: DataNormalizer, chunk_size: int = 10):
# Get or Create Collection
collection = chromadb.Collection = self.client.create_collection(name=name, get_or_create=True)
# Load Items
length = len(normalizer) / chunk_size
for items in tqdm(chunk(normalizer, chunk_size), total=length):
ids = []
@ -65,7 +70,7 @@ class ChromaDB(VectorDB):
ids.append(item.get("id"))
metadatas.append(item.get("metadata", {}))
self.collection.add(
collection.add(
ids=ids,
documents=documents,
metadatas=metadatas,