Webhook

Webhooks for Affiliate Automation

Webhooks are automated HTTP callbacks triggered by events in systems. When a conversion occurs, the webhook sends conversion data to the affiliate platform, triggering commission calculation.

A typical conversion flow runs in three steps:

1. A customer completes signup and the payment_completed webhook fires.
2. The event data is sent to the affiliate platform with customer ID, amount, and affiliate ID.
3. The affiliate platform receives the webhook, calculates the commission, and updates the payout.

Webhooks replace manual reconciliation, enabling real-time commission tracking.

Implementing Webhooks

Your system defines a webhook endpoint (URL) that receives conversion events. The affiliate platform registers the webhook: 'send payment_completed event to https://example.com/webhooks/conversions.'

From there, delivery follows a fixed sequence:

1. When the event occurs, your system sends a POST request to the webhook endpoint containing event data (JSON).
2. The affiliate platform receives the request and parses the conversion data.
3. The platform calculates the commission and records it in the database.

A webhook typically sends within seconds of the event, enabling real-time tracking. Implement retry logic: if webhook delivery fails, retry after 5 minutes, then 15 minutes, then hourly until successful.

This retry pattern prevents lost conversions due to temporary network issues.

Webhook Best Practices

A few engineering practices keep webhook-driven commissions accurate:

• Secure webhooks with authentication. HMAC signatures or API keys prevent unauthorized requests.
• Implement idempotency so the same webhook fired twice does not create duplicate commissions.
• Use unique event IDs to prevent duplicate processing.
• Log all webhook events for debugging, since logs enable troubleshooting when problems arise.
• Provide a webhook monitoring dashboard showing delivery success rates and failures.
• Set up alerts for webhook failures so you can respond quickly.

Testing and Documenting Webhooks

Test webhook implementations thoroughly by sending test events and verifying that commission calculations are correct. Document the webhook payload structure and expected fields, for example: {affiliate_id, customer_id, amount, currency, event_timestamp}.

Provide webhook testing tools that let affiliates test their integration. Many API-first affiliate platforms provide webhook infrastructure, but custom implementations require careful engineering.

Webhooks replace batch file uploads and manual reconciliation, dramatically improving efficiency at scale.