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📡 Real-Time Event Telemetry

Real-Time Webhooks & Telemetry

Never miss a payment event. Receive cryptographic HMAC-SHA256 signed JSON webhook payloads the exact instant a transaction occurs with automatic exponential retry dispatchers.

Configure Webhooks Webhook Security Docs →
Live Event Payload HTTP 200 OK 
{
  "event": "charge.success",
  "event_id": "evt_9841294821",
  "timestamp": "2026-10-02T05:26:57Z",
  "data": {
    "reference": "FIM_904128491",
    "amount": 2500000,
    "currency": "NGN",
    "channel": "bank_transfer",
    "settlement_status": "instant"
  },
  "signature": "hmac_sha256_verified"
}
Telemetry & Event Signals

Instant Webhooks & Signed Telemetry

Never miss a payment event. FimPay dispatches signed webhook events directly to your endpoint the exact millisecond a bank deposit completes or a payout changes state.

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    Cryptographic Signatures: Every webhook header includes an HMAC-SHA256 signature for tamper-proof verification.
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    In-Flight Retry Schedule: Automatic exponential backoff retries (0s, 3s, 15s, 30s) ensure events are delivered reliably.
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    Dashboard Delivery Logs: Inspect request payloads, response status codes, and test endpoints with one-click re-delivery.
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    Zero-Loss Guarantee: Full delivery history stored in searchable audit logs with replay capabilities.

Event Dispatch Tracker

Event: charge.successful
Status: Delivered & Confirmed (HTTP 200)
Amount: ₦25,000.00
Delivery Latency: Sub-second dispatch

Resilient Event Infrastructure

Engineered for maximum reliability, auditability, and fraud protection.

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HMAC-SHA256 Signatures

Every outgoing payload includes a cryptographic header generated with your merchant secret key to prove authenticity.

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Automated Retry Schedule

If your server encounters temporary network latency, FimPay automatically retries delivery in flight (Immediate, 3s, 15s, 30s) with full delivery logging.

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Dashboard Event Replay

View complete historical delivery logs, inspection headers, response bodies, and trigger instant manual re-deliveries.

Ready to receive Webhooks?

Configure your endpoint in your merchant dashboard and test with sandbox simulator.

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