Chat on WhatsApp with Text, Voice and Images

How to obtain Whatsapp API? ### ✅ Prerequisites Before you begin, make sure you have: - A Meta Business Account - A Facebook Developer Account - A Verified Business - A Phone Number to link to WhatsApp - Access to Meta's Graph API Explorer or Meta for Developers portal --- ### 🪜 STEP 1: Create a Meta App 1. Go to {{ $env.WEBHOOK_URL }} 6. Click Create App --- ### 🪜 STEP 2: Add WhatsApp Product 1. In your app dashboard, scroll down to "Add a Product" 2. Find "WhatsApp" and click “Set Up” 3. Link your Business Manager Account --- ### 🪜 STEP 3: Create a WhatsApp Business Account (if needed) 1. If you haven’t already, go to {{ $env.WEBHOOK_URL }} --- ### 🪜 STEP 4: Generate a Temporary Access Token (for development) 1. In the App Dashboard, go to WhatsApp > Getting Started 2. Choose your test phone number 3. Copy the temporary access token (valid for 24 hours) 4. Copy the Phone Number ID and WhatsApp Business Account ID ✅ Save these 3 values: - Access Token - Phone Number ID - WABA ID 📝 Tip: For production, you will later need to create a permanent token (see step 7). --- ### 🪜 STEP 5: Set Up a Webhook URL (n8n) 1. In n8n, set up a Webhook node (or use the WhatsApp Trigger node) 2. Copy the webhook URL 3. In the Meta Developer Dashboard: - Go to WhatsApp > Configuration - Click “Edit Callback URL” - Paste your n8n webhook URL and add a random verify token 4. In n8n, configure your webhook to respond to the verification request --- ### 🪜 STEP 6: Subscribe to Webhook Fields 1. Still under WhatsApp > Configuration, click "Manage Subscriptions" 2. Enable: - messages - message_status - (Optionally message_template_status_update) --- ### 🪜 STEP 7: (Optional but recommended) Generate a Permanent Token 1. Go to [{{ $env.WEBHOOK_URL }}]({{ $env.WEBHOOK_URL }} 2. Select your app 3. Click Get Token > System User Token 4. Select the permissions: - whatsapp_business_management - whatsapp_business_messaging - business_management 5. Click Generate Token 6. Copy and securely store this token --- ### 🪜 STEP 8: Configure Credentials in n8n 1. Go to n8n > Settings > Credentials 2. Create new credentials of type HTTP Header Auth - Name: WhatsApp - Header Name: Authorization - Value: Bearer 3. Save Then, in your workflows: - Use the HTTP Request node or WhatsApp node - Set the phone_number_id