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I will integrate whatsapp cloud API with fastapi webhook and supabase automation
Charles J
About this gig
Need an official WhatsApp Cloud API integration that actually works end-to-end?
I will build a reliable WhatsApp webhook and message automation backend using Python FastAPI, with Supabase integration to store contacts, messages, and conversation state (multi-step logic).
What I can build for you
- WhatsApp Cloud API setup support (tokens, phone number ID, app config)
- Production-ready FastAPI webhook (verification + incoming message handling)
- Send message templates (approved templates only)
- Store users/messages in Supabase (tables + basic auth rules guidance)
- Conversation state tracking for multi-step flows (menu, booking, FAQ, lead capture)
- Optional: connect to your app/CRM via API integration and webhooks
- Optional: WhatsApp Flows support (if youre using Flows in your Meta setup)
Important compliance note
I work with the official WhatsApp Business Platform (Cloud API). I do not provide bulk/spam messaging or scraped lists. Your users must be opted-in and templates must follow WhatsApp rules.
Message me before ordering so I can confirm your Meta Business setup and the exact automation flow.
Get to know Charles J
Charles J
- FromUnited Kingdom
- Member sinceOct 2025
Languages
English
Hi! I’m a skilled API integration and eCommerce automation expert. I help Shopify, eBay, and Etsy store owners connect product data, sync inventory, and automate listings using REST APIs and custom workflows. My goal is to save you time and boost accuracy with reliable automation. Let’s build your seamless multi-channel system today!
Other Software Development Services I Offer
FAQ
Do you use the official WhatsApp Cloud API or unofficial automation tools?
I focus on the official WhatsApp Cloud API (Meta). This means proper webhook setup, template messaging, and compliant automation.
Can you build the webhook in FastAPI?
Yes—your WhatsApp webhook will be built with Python FastAPI, including verification and secure message handling.
Can you store messages and users in Supabase?
Yes, I can add Supabase integration to store contacts, inbound/outbound messages, and conversation state.
Can you create multi-step automation (conversation state)?
Yes—multi-step flows (lead capture, appointment bot, order updates) using conversation state + rules.
Can you help with message templates and approvals?
I can implement message templates in code and guide you on setup. Template approval is handled by Meta/WhatsApp.
Do you support WhatsApp Flows?
If your account has WhatsApp Flows enabled, I can integrate flow events into your FastAPI webhook and store results in Supabase.
