How to Build and Deploy a Production-Ready WhatsApp Bot with FastAPI, Evolution API, Docker, EasyPanel, and GCP

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How to Build and Deploy a Production-Ready WhatsApp Bot with FastAPI, Evolution API, Docker, EasyPanel, and GCP
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WhatsApp bots are widely used for customer support, automated replies, notifications, and internal tools. Instead of relying on expensive third-party platforms, you can build and deploy your own self-hosted WhatsApp bot using modern open-source tools. In this tutorial, you’ll learn how to build and deploy a production-ready WhatsApp bot using: FastAPI Evolution API Docker EasyPanel Google Cloud Platform (GCP) By the end of this guide, you will have a fully working WhatsApp bot connected to your own WhatsApp account and deployed on a cloud virtual machine. Table of Contents How the Architecture Works How Your WhatsApp Bot Works Prerequisites Step 1: Create Firewall Rules on GCP Step 2: Create a Virtual Machine (Ubuntu 22.04) Step 3: SSH into the VM Step 4: Install Docker Step 5: Install EasyPanel Step 6: Open the EasyPanel Dashboard Step 7: Deploy Evolution API Step 8: Connect WhatsApp Step 9: Deploy the FastAPI Bot Step 10: Connect the Webhook - Telling Evolution API Where to Send Messages Step 11: Final Test Production Considerations Conclusion How the Architecture Works Before we start installing anything, let’s understand how the system works. How Your WhatsApp Bot Works Before we continue setting things up, let's make sure you understand what's actually happening behind the scenes...

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