UC-17: Notifications and Webhooks

Role-gated control-plane steps are intentionally excluded from this public guide; use support escalation when those operations are required. Shared company context: Gharart.com Company Context Need operator help? Escalate through Troubleshooting and Support with request IDs and repro artifacts.

Developer Outcome

Ship notifications, webhooks, and mobile inbox or voice-note workflows for Gharart.com with reproducible API steps, operational limits, and clear debugging playbooks.

Prerequisites

• A valid handle and environment access for Gharart.com.
• JWT and/or PAT credentials with required scope for this use case.
• Access to logs, support escalation endpoints, and test workspace.
• A webhook sink that can show request logs and the returned HTTP status.

Gharart Scenario

Real-time fulfillment alerts into CRM.

Persona: Lifecycle operations engineer

Business goal: Deliver critical campaign and order events to email and webhook subscribers without silent drops.

Step-by-Step Flow (UI + API)

1. Open the relevant Gharart workflow in the dashboard and confirm actor role access.
2. Execute route calls in sequence for this use case and capture response IDs. For mobile workflows, inspect /v2/handles/{handle}/mobile/inbox, mark items read, and complete voice-note uploads before expecting downstream automation or notifications.
3. Validate expected state in UI and API after each step before moving forward.
4. Record artifacts (request ID, run ID, deployment ID, slug, or token) for support handoff.

Primary API Routes

Limits and Quotas

• Respect per-route throttles and daily write limits before bulk operations.
• Use idempotency-safe retries for write endpoints to avoid duplicate business actions.
• Schedule high-volume workflows outside peak campaign windows where possible.

Webhook Delivery Policy

• Test requests return 202 when the delivery is accepted for dispatch. They do not wait for your endpoint to finish processing.
• Deliveries are at-least-once. Build your receiver to handle duplicates safely.
• Retryable delivery failures are retried after 5s, 10s, 20s, and 40s, for up to 5 total attempts.
• Most deterministic 4xx responses, including 401, 403, 404, 410, and 422, are treated as terminal immediately.
• Terminal failures can emit webhook.delivery.terminal_failure and may route owner-alert notifications.
• Use Webhook Delivery and Failure Handling for the full matrix.

Where This Breaks

• webhook test returns 202, but the receiver later answers 404 or 401
• webhook test passes but production delivery still retries to DLQ
• receiver validates the signature differently than expected
• receiver returns 429 or 5xx during traffic spikes
• notification email subscription has stale SNS arn
• owner default email unset causing missed critical alerts

How Gharart Debugs It

1. Run the webhook test endpoint and record the returned eventId.
2. Confirm the receiver actually saw the signed POST and note the returned status code.
3. If the receiver returned 4xx, fix route, auth, or validation before retrying.
4. If the receiver returned 429 or 5xx, stabilize the endpoint and then retry with fresh evidence.
5. For live-only failures, compare subscribed eventTypes and downstream payload assumptions.
6. Trigger owner default email test after subscription updates.

Escalation

Use end-user escalation path:

• Submit POST /v2/support/report.
• Include summary, details, and when available handle, sessionId, subscriptionId, eventId, requestId, reproArtifact.

Audience boundaries:

• POST /v2/operator/escalations is an internal operator workflow and not an end-user escalation action.
• POST /v2/public/content-report is for public abuse moderation reports, not product incident escalation.