Concepts

Understand the fundamental building blocks of Hook0.

Architecture Overview

Application → Event → Hook0 → Subscription → Webhook Endpoint
                ↓
           Event Type
           (filtering)

Hook0 connects your applications to external systems through a simple flow:

1. Your Application sends an Event to Hook0
2. Each Event has an Event Type that categorizes it
3. Subscriptions filter Events by Event Type
4. Hook0 delivers matched Events to the configured Webhook Endpoint

This architecture allows you to decouple event producers from consumers, enabling flexible routing and reliable delivery.

Core Concepts

• Events - Notifications sent from your applications to Hook0
• Subscriptions - Configure where and how to receive notifications
• Event Types - Categorize and structure your events
• Metadata - Attach arbitrary key-value data to objects