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Notifications, Messaging, Email, SMS & Webhooks - Analysis¶
Planning-layer analysis for category 5. It groups the 50 candidate services into capabilities, recommends what becomes a standalone service versus a module, and captures domain, interface, and non-functional notes. For the plain item list see the browse page.
Scope & Bounded Context¶
- Primary bounded context: Notifications & Webhooks
- Group: core
- Default wave / cycle: Phase 1 · Core Platform Wave
- Items: 50 candidates
This category is anchored to the ConnectSoft DDD baseline in the SaaS framework DDD blueprint and the service classification model.
Classification Breakdown¶
| Classification | Count |
|---|---|
| Connector | 7 |
| Microservice | 2 |
| Module-in-service | 34 |
| Platform Product | 3 |
| Portal/UI Module | 4 |
Anti-fragmentation stance
Per ADR-0011, the 34 module candidates below are delivered inside the Notifications & Webhooks bounded-context service, not as separate microservices. Only the 5 platform/service candidates justify an independent runtime.
Standalone Service / Platform Candidates¶
| ID | Service | Tier | Status |
|---|---|---|---|
| CS-SVC-0201 | Notification Platform | 1 | Documented |
| CS-SVC-0202 | Email Platform | 1 | Documented |
| CS-SVC-0219 | SMS Gateway | 1 | Documented |
| CS-SVC-0227 | WhatsApp Messaging Gateway | 1 | Planned |
| CS-SVC-0241 | Webhook Platform | 1 | Planned |
Connector Candidates¶
- SendGrid Adapter (
CS-SVC-0205) - plugin in the Connector Runtime. - Mailgun Adapter (
CS-SVC-0206) - plugin in the Connector Runtime. - Amazon SES Adapter (
CS-SVC-0207) - plugin in the Connector Runtime. - SMTP Adapter (
CS-SVC-0208) - plugin in the Connector Runtime. - Twilio Adapter (
CS-SVC-0221) - plugin in the Connector Runtime. - Vonage Adapter (
CS-SVC-0222) - plugin in the Connector Runtime. - MessageBird Adapter (
CS-SVC-0223) - plugin in the Connector Runtime.
Portal / UI Modules¶
- Email Template Designer (
CS-SVC-0210) - Email Deliverability Dashboard (
CS-SVC-0218) - Notification Preference Center (
CS-SVC-0233) - Webhook Delivery Dashboard (
CS-SVC-0247)
Domain, Interfaces & Data Ownership¶
- Aggregates are owned by the Notifications & Webhooks context; cross-context reads go through published contracts, never shared databases.
- Integration is event-first (outbox + integration events) per the event-driven mindset.
- APIs are contract-first and versioned through the API & Integration context.
Non-Functional Posture¶
- Multi-tenancy & edition-awareness: required for all serious candidates.
- Security: Standard baseline; secrets via the platform secret store; least privilege.
- Compliance: standard audit logging.
- Observability: OpenTelemetry traces, metrics, and structured logs.
MVP vs Future¶
- MVP (Tier 0-1): Notification Platform, Email Platform, Email Delivery Service, Email Provider Abstraction, SendGrid Adapter, Mailgun Adapter, Amazon SES Adapter, SMTP Adapter
- Future (Tier 4-5): none
Open Questions¶
- Which module candidates, if any, develop independent scaling or ownership needs that would justify promotion to a standalone service?
- Where do this category's contracts overlap with adjacent contexts, and who owns them?