🏗️ Architecture: How should the WhatsApp/Twilio channel onboarding be simplif...

Date: 2026-02-18
Time: 15:08:47 UTC
Session: gspace1-117.2
Agent: backend
Confidence: 95%
Status: ✅ Documented

📋 Decision Context

Question:

How should the WhatsApp/Twilio channel onboarding be simplified?

Task: Channel gateway Twilio onboarding simplification - Session 117

🎯 Decision Made

Chosen:

Platform-managed Twilio with sandbox support

Options Considered:

1. Platform-managed Twilio (GoGrab owns account)
2. User BYOT via OAuth
3. Twilio Subaccounts per user
4. Keep current manual SID/Token entry

💭 Reasoning

Development phase - no need for BYOT complexity. User said 'do the heavy lifting in the background'. GoGrab owns one Twilio account, credentials in env vars. User only enters phone number. Sandbox mode for dev (join code + number), production mode for later. Extracted TwilioService for clean separation. Fixed critical bug where sendWhatsAppMessage never used per-channel DB config.

📁 Files Involved

• apis/backend-vitto-api/src/app/connectivity/twilio.service.ts
• apis/backend-vitto-api/src/app/connectivity/channel-gateway.service.ts
• apis/backend-vitto-api/src/app/connectivity/schemas/vitto-channel.schema.ts
• apis/backend-vitto-api/src/app/engine/vitto.controller.ts
• libs/libs-ai/vitto-hub/src/lib/components/channel-manager/channel-manager.component.ts
• libs/libs-ai/vitto-hub/src/lib/components/channel-manager/channel-manager.component.html

🔗 Related

• Decision ID: dev_1771427327136_rjtx5g0
• Session: 117
• Workspace: gspace1

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