WhatsApp Cloud API Integration Automation

I need to configure my facebook business portfolio so it can use WhatsApp Cloud API account and now need a working integration that handles Message sending and receiving for Text messages only. The solution must include three layers of automation: Scheduled messages, Auto-reply, and the ability to store and trigger Message templates.

Here’s what I expect:

• Secure setup of the WhatsApp Cloud API, including webhook configuration so incoming texts are instantly delivered to interface....
• Clean, well-documented endpoints (or a lightweight dashboard) where I can create, edit, and launch message schedules, define quick auto-replies, and manage my pre-approved templates. OR
connect the Whatsapp cloud API to an already created platform.
• Clear instructions for generating the permanent access token and refreshing it, plus a short README so I can redeploy or move servers later.

You are free to build in Node.js, Python, or PHP—whichever you’re most comfortable with—but please keep the code modular so additional media or user-management features can be bolted on later. All keys and secrets should be pulled from environment variables; don’t hard-code anything.

To mark this project complete, I’ll test by:

1. Receiving an inbound text and seeing it hit my webhook.
2. Sending a templated outbound message from the interface and confirming delivery.
3. Watching a scheduled text go out at the correct time without manual intervention.
4. Triggering an auto-reply loop to prove latency is under two seconds.

Deliver the source code, a Postman collection (or cURL samples), and the deployment guide.