Flask API for Weaviate-Cohere Integration

Introduction

This README guides you through the process of creating a Flask API to serve as a proxy between Weaviate's database and Cohere's co.chat endpoint. Additionally, it details how to deploy this Flask application on Heroku.

Requirements

• Python 3.x

• Flask

• Weaviate Python client

• Cohere SDK

• Heroku account

• Git

Setting Up the Flask App

1. Install Flask: If you haven't already, install Flask using pip:

pip install Flask

2. Create Your Flask App: Use the provided app.py as a reference for setting up your Flask application. Ensure it includes routes to handle requests and integrate with Weaviate and Cohere.

3. Integrate Weaviate: Install the Weaviate Python client:

pip install weaviate-client

Use this client to connect to your Weaviate instance and perform queries.

4. Integrate Cohere: Install the Cohere SDK:

pip install cohere

Utilize Cohere's co.chat endpoint within your Flask application to process the data fetched from Weaviate.

5. Test Your Application Locally: Before deploying, make sure your application runs smoothly on your local machine.

Deploying to Heroku

1. Set Up Heroku: If you don't have a Heroku account, create one. Install the Heroku CLI and log in.

2. Prepare Your App for Deployment:

• Procfile: Create a Procfile in your project's root directory. This file tells Heroku how to run your app. For a Flask app, it usually looks like:

web: gunicorn app:app

• Requirements.txt: Ensure you have a requirements.txt file listing all necessary Python packages.

3. Initialize a Git Repository:

• Initialize a Git repository if you haven't already:

git init

• Add and commit your changes:

git add .

git commit -m "Initial commit"

4. Create a Heroku App:

heroku create

This command creates a new app on Heroku and adds a remote to your local repository.

5. Deploy Your App to Heroku:

• Push your code to Heroku:

git push heroku master

• Once deployed, Heroku gives you a URL where your app is live.

6. Verify Deployment: Visit the provided URL to ensure your Flask application is running correctly.

Resources

1. Query in Weaviate: https://weaviate.io/developers/weaviate/tutorials/query
2. Custom Connector in Cohere: https://drive.google.com/file/d/1vRyQWUPzNONU1oT6Rk2ltW_fpqEnhaHA/view?pli=1
3. Quickstart Weaviate: https://weaviate.io/developers/weaviate/quickstart