WhatsApp Order Confirmation Automation

I need a small, reliable script that connects to Meta’s WhatsApp Cloud API and automatically sends order-confirmation messages the moment a purchase is completed in my system. The flow is straightforward: when my backend registers a successful order, your code should fire the Cloud API call, select the right template, pass the dynamic variables (customer name, order number, items, total, etc.), and log the response for later auditing.

You are free to work in the language you are most comfortable with, though I am already running Node.js services on the server, so a TypeScript or JavaScript module would plug in neatly. If you prefer Python and can containerise the solution, that is fine too—just document the setup clearly.

Acceptance criteria:

• Uses WhatsApp Cloud API (not on-premise)
• Sends transactional “order confirmation” updates only
• Handles authentication token refresh automatically
• Clean, commented code and a brief README showing environment variables and the single endpoint I need to hit from my backend

Once it runs on my test account and I see the confirmation arrive on WhatsApp with the correct dynamic values, the job is done.