Delivery Logs

The WebhookDeliveryAdminService provides delivery and attempt history plus manual retry and replay operations. Use it to build observability dashboards and protected support tooling.

Query Delivery History

import { Injectable } from '@nestjs/common';
import { WebhookDeliveryAdminService } from '@nestarc/webhook';

@Injectable()
export class WebhookDashboardService {
  constructor(private readonly deliveryAdmin: WebhookDeliveryAdminService) {}

  async getEndpointLogs(endpointId: string) {
    return this.deliveryAdmin.getDeliveryLogs(endpointId, {
      status: 'FAILED',
      limit: 50,
      offset: 0,
    });
  }
}

Filter Options

interface DeliveryLogFilters {
  status?: DeliveryStatus;    // 'PENDING' | 'SENDING' | 'SENT' | 'FAILED'
  eventType?: string;         // Filter by event type (e.g. 'order.created')
  since?: Date;               // Only deliveries after this timestamp
  until?: Date;               // Only deliveries before this timestamp
  limit?: number;             // Max results to return
  offset?: number;            // Pagination offset
}

Delivery Record

Each delivery row summarizes its latest persisted state:

interface DeliveryRecord {
  id: string;
  eventId: string;
  endpointId: string;
  destinationUrl: string;            // snapshotted URL used for this delivery
  tenantId: string | null;
  status: DeliveryStatus;         // PENDING | SENDING | SENT | FAILED
  attempts: number;               // Current attempt count
  maxAttempts: number;            // Max attempts allowed
  nextAttemptAt: Date | null;     // Scheduled retry time
  lastAttemptAt: Date | null;     // When last attempt was made
  completedAt: Date | null;       // When delivery completed (SENT or FAILED)
  responseStatus: number | null;  // HTTP status code from endpoint
  responseBody: string | null;    // Default HTTP client captures up to 4096 UTF-16 code units
  latencyMs: number | null;       // Round-trip latency in ms
  lastError: string | null;       // Error message for failed attempts
}

destinationUrl comes from the delivery snapshot when available, so support tooling can show where the queued attempt was actually sent even after the endpoint is edited.

Inspect Recorded Attempts

Version 0.9 and later append attempt results after worker processing. A process crash between an HTTP request and the database write can leave that request outcome unrecorded:

const attempts = await this.deliveryAdmin.getDeliveryAttempts('delivery-uuid');

interface DeliveryAttemptRecord {
  id: string;
  deliveryId: string;
  attemptNumber: number;
  status: 'PENDING' | 'SENT' | 'FAILED';
  responseStatus: number | null;
  responseBody: string | null;
  responseBodyTruncated: boolean;
  latencyMs: number | null;
  lastError: string | null;
  createdAt: Date;
}

The default HTTP client retains at most 4096 UTF-16 code units of response text, and the repository also bounds attempt bodies. This is a text limit, not a byte limit. A false responseBodyTruncated flag does not prove the receiver sent no more text: truncation can already have occurred in the HTTP client. Redaction hooks or retention can further remove recorded content.

Manual Retry

Retry a specific failed delivery:

const success = await this.deliveryAdmin.retryDelivery('delivery-uuid', {
  reason: 'customer requested retry',
});
// Returns true if the delivery was reset to PENDING

This resets an eligible FAILED delivery to PENDING and provides at least one more attempt even if its original budget was exhausted. It keeps the delivery ID, URL/key snapshots, and previous attempt rows. It does not immediately dispatch HTTP or establish successful receipt.

In published 0.13.1, manual and bulk retry do not reject payloads already purged by retention. Check webhook_events.payload_purged_at before exposing these actions and avoid retrying such events. Source 0.13.2 rejects them and coordinates retry with retention; it is pending npm publication.

TIP

Manual retry is useful for one-off failures caused by temporary endpoint issues. For systemic failures, investigate the endpoint health via the circuit breaker status first.

Retry a Bounded Failed Set

Bulk retry is designed for an operator-selected and bounded incident scope:

const result = await this.deliveryAdmin.retryFailedDeliveries(
  {
    endpointId: 'endpoint-uuid',
    eventType: 'order.created',
    since: new Date('2026-08-01T00:00:00Z'),
    limit: 100,
  },
  { reason: 'receiver outage resolved' },
);

// { matched, retried, skipped }

Always set a finite limit and narrow by endpoint, event type, or time window. The result separates matched rows from those actually requeued.

Replay an Event

Replay keeps the original event ID and payload but creates new delivery rows for currently active matching endpoints:

const replay = await this.deliveryAdmin.replayEvent('event-uuid', {
  tenantId: 'tenant_123',
  reason: 'customer support replay',
});

// { eventId, deliveriesCreated, endpointIds }

Optionally pass endpointIds to constrain the replay. Replay resolves current active matching endpoints and snapshots their current URL and signing secrets. It preserves the event ID, so a receiver that already processed that webhook-id may correctly deduplicate the replay. Purged payloads cannot be replayed.

In published 0.13.1, replayed rows always use five total attempts, regardless of delivery.maxRetries. Source 0.13.2 uses the configured budget and is pending npm publication; verify your installed version before relying on it.

The default repository accepts reason for retry/replay but does not persist or use it. Record the authenticated operator, scope, reason, and result in your host application's audit system when that history is needed.

WebhookDeliveryAdminService API

Method	Signature	Description
getDeliveryLogs	(endpointId: string, filters?: DeliveryLogFilters) => Promise<DeliveryRecord[]>	Query delivery history for an endpoint
getDeliveryAttempts	(deliveryId: string) => Promise<DeliveryAttemptRecord[]>	Return attempts ordered by attempt number
retryDelivery	(deliveryId: string, options?: RetryDeliveryOptions) => Promise<boolean>	Requeue one failed delivery
retryFailedDeliveries	(filters, options?) => Promise<RetryFailedDeliveriesResult>	Requeue a bounded failed set
replayEvent	(eventId, options?) => Promise<ReplayEventResult>	Create new deliveries for an existing event

Monitoring Queries

You can also query the delivery tables directly for operational monitoring:

-- Count deliveries by status for an endpoint
SELECT status, COUNT(*) AS count
FROM webhook_deliveries
WHERE endpoint_id = 'endpoint-uuid'
GROUP BY status;

-- Recent failed deliveries with error details
SELECT d.id, e.event_type, d.attempts, d.last_error,
       d.response_status, d.latency_ms, d.last_attempt_at
FROM webhook_deliveries d
JOIN webhook_events e ON e.id = d.event_id
WHERE d.status = 'FAILED'
ORDER BY d.last_attempt_at DESC
LIMIT 20;

-- Attempt history for one delivery
SELECT attempt_number, status, response_status, latency_ms,
       last_error, created_at
FROM webhook_delivery_attempts
WHERE delivery_id = 'delivery-uuid'
ORDER BY attempt_number ASC;

-- Average latency by endpoint (last 24h)
SELECT endpoint_id, AVG(latency_ms) AS avg_latency,
       COUNT(*) AS total_deliveries
FROM webhook_deliveries
WHERE status = 'SENT' AND completed_at > NOW() - INTERVAL '24 hours'
GROUP BY endpoint_id;