WebhookLab Blog

Real-time webhook debugging — insights on API design, DevOps workflows, and backend engineering

Featured

Why Your Webhooks Fail in Production (And How to Fix Them)

After analyzing over 2.4 million webhook deliveries across Stripe, GitHub, and Shopify integrations, our engineering team identified the top five failure patterns — from TLS handshake timeouts to silent JSON parsing errors. Here's the data, the root causes, and the exact retry strategies that cut delivery failures by 94%.

Published on March 12, 2025 · 11 min read · By Elena Vasquez, Senior Backend Engineer

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Recent Posts

API Design

Idempotency Keys in Webhook Consumers: A Practical Guide

How to implement idempotent webhook handlers using Redis locks and database upserts. Includes code samples for Node.js and Go, plus the exact PostgreSQL schema we use at WebhookLab to deduplicate 180K+ events per hour.

March 8, 2025 · 8 min read · By Marcus Chen

DevOps

Replacing ngrok with a Self-Hosted Webhook Relay on Kubernetes

When ngrok's free tier limited our CI pipeline, we built a lightweight webhook relay using Nginx ingress controllers and a custom Go sidecar. Deployment YAML, cost breakdown ($12/mo vs $15/mo), and the latency benchmarks that made the switch worth it.

March 5, 2025 · 10 min read · By Priya Sharma

Security

Verifying Stripe and GitHub Webhook Signatures Without Leaking Secrets

A step-by-step walkthrough of HMAC-SHA256 signature verification in production. Covers timing-safe comparison, secret rotation strategies, and the common mistake of logging raw payloads in debug mode — with before/after code.

February 28, 2025 · 7 min read · By Elena Vasquez

Tooling

Building a Webhook Replay System with PostgreSQL and RabbitMQ

How we engineered a replay engine that lets developers retrigger any historical webhook event within 90 days. Architecture diagram, message queue configuration, and the indexing strategy that keeps query latency under 40ms at scale.

February 22, 2025 · 12 min read · By Marcus Chen

API Design

Webhook Payload Versioning: The Strategy Shopify Got Right

Why backward-compatible JSON schema evolution matters for webhook providers. Analyzes Shopify's X-Shopify-API-Version header approach, compares it to Stripe's event-type versioning, and proposes a generic header convention for your own API.

February 15, 2025 · 6 min read · By Priya Sharma

DevOps

Monitoring Webhook Latency with OpenTelemetry and Grafana

End-to-end tracing from webhook dispatch to consumer acknowledgment. Includes a ready-to-import Grafana dashboard JSON, Prometheus metric definitions, and the P95 alert thresholds we use to catch degradation before customers notice.

February 9, 2025 · 9 min read · By Elena Vasquez