Data Flow

Message and data processing flows in HealthTalk.

Message Sending Flow


User Action           Gateway              Services                 Delivery
    │                    │                    │                        │
    │  1. Send Request   │                    │                        │
    ├───────────────────>│                    │                        │
    │                    │  2. Authenticate   │                        │
    │                    │  3. Rate Check     │                        │
    │                    ├───────────────────>│                        │
    │                    │                    │  4. Validate Request   │
    │                    │                    │  5. Render Template    │
    │                    │                    │  6. Queue Message      │
    │                    │<───────────────────┤                        │
    │  7. Accepted       │                    │                        │
    │<───────────────────┤                    │                        │
    │                    │                    │  8. Process Queue      │
    │                    │                    ├───────────────────────>│
    │                    │                    │                        │  9. Deliver
    │                    │                    │<───────────────────────┤
    │                    │                    │  10. Update Status     │
    │  11. Webhook       │                    │                        │
    │<─────────────────────────────────────────                        │

Patient Response Flow

Patient receives message via channel (SMS/Email)
Patient responds via same channel
Provider receives message
Response linked to original conversation
Notification sent to assigned staff
Staff reviews and responds

Data Synchronization

EHR Integration


EHR System ──> API Gateway ──> Patient Service ──> Database
                    │
                    └──> Audit Trail

Appointment Sync


Scheduling System ──> Webhook ──> Appointment Service
                                        │
                                        └──> Reminder Queue

Event Flow

All significant events are published to the event bus:

message.created
message.sent
message.delivered
message.failed
patient.updated
appointment.created

Subscribers process events for:

Analytics aggregation
Audit logging
Webhook delivery
Notification dispatch