Webhook & Event-Driven Architecture

Data synchronization running hourly or daily is sufficient for many scenarios, but some business processes require an instant response. A payment confirmed and processed in the order system within seconds; an automatic alert sent to the supplier’s system before stock runs out; a lead from a form dropped into the CRM and immediately assigned to a sales representative — all of these require “now,” not “tomorrow.”

Our Solution Approach

We provide instant, reliable data transfer between systems using webhooks and event-driven architecture. An event occurring in one system — new order, payment confirmation, status change, user action — is immediately relayed to other systems and connected processes are triggered. Reliability is the priority in architectural design: what happens when event delivery fails is planned from the very beginning.

Scope & Features

• Webhook listener development — Secure HTTP endpoints that receive, validate, process, and respond to incoming events
• HMAC signature verification — Cryptographic verification that incoming webhook payloads genuinely originate from the expected source; fake requests are rejected
• Payment and order webhooks — Payment confirmation, order creation, invoice generation or shipping flow events are triggered instantly
• Marketplace event integration — Order status updates, shipping notifications and stock synchronization events
• CRM and form triggers — Assignment, notification and follow-up flows when a new record arrives
• Event queue architecture — Redis or RabbitMQ-based message queue to process high volumes of events without dropping any; sudden traffic spikes do not slow the system
• Retry and dead letter queue — Automatic retry on temporary failures; permanently failed events are kept on record
• Logging and monitoring — A timestamped, status-tagged record of every event; which events were processed, which failed, and what the error was

Technical Standards

Webhook listeners developed in Node.js run on Express or Fastify. For low-volume projects, a simple HTTP listener is sufficient; for high-traffic systems, a Redis Pub/Sub or RabbitMQ queue architecture is implemented. All webhook endpoints are delivered with HTTPS enforced, HMAC verification active, and rate limiting active.

Who Is It For?

• E-commerce and SaaS businesses that require instant processing of critical events such as payments, orders, or form submissions
• Organizations that want to synchronize multiple systems in real time and find that periodic synchronization is too slow
• Teams that receive webhooks from third-party services (payment provider, marketplace, CRM) and need secure infrastructure to process these events

Expected Outcomes

• Critical business events are processed instantly; second-level response instead of hourly synchronization
• Operational errors caused by delays (duplicate orders, stock errors, unassigned leads) are eliminated
• Systems work in parallel without waiting for each other; bottlenecks and sequential dependencies are reduced
• With a record kept of every event, when a problem occurs, what happened and when is immediately traceable