WhatsLLM

A simple LLM chatbot webhook on WhatsApp.

Usage

Send a WhatsApp message to +65 8646 2570 or +1 555 133 0603. GPT-4o-mini will reply.

WhatsApp Setup

Log into Meta for Developers and create a new app
Set up WhatsApp as a product
Generate a system user access token
Add the phone number to the WhatsApp Business app and add a payment method

Hook Setup

Log into https://dash.cloudflare.com/ as [email protected]
Create a worker called whatsllm deployed at https://whatsllm.sanand.workers.dev
Clone this repository
Run npm install
Run npx wrangler secret put <key> also add them to .dev.vars as KEY=value:
- WEBHOOK_VERIFY_TOKEN: Via Meta Developer Console
- ACCESS_TOKEN: Via Meta Developer Console -- or generated via curl https://graph.facebook.com/oauth/access_token?client_id=1247415196273061&client_secret=$APP_SECRET&grant_type=client_credentials
- LLMFOUNDRY_TOKEN: Via LLM Foundry
Run npm run deploy to deploy on Cloudflare

Notes

If WhatsApp's webhook receives an error, it keeps retrying at 0.33, 0.66, 2, 30, 390, ... seconds