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Beginner8 min readNetworking & Communication

Webhooks

Decoupling event push updates by configuring backends to trigger HTTP POST requests into client endpoints.

What you'll learn

  • Connection Multiplexing
  • Payload Serialization
  • Flow & Congestion Control

TL;DR

Decoupling event push updates by configuring backends to trigger HTTP POST requests into client endpoints.

Visual System Topology

Webhooks Network Handshake Flow

Client Node Initiates Request
Multiplexed
Webhooks Gateway Routes Traffic
Fast Payload
Backend Server Executes Logic

Concept Overview

Webhooks is a critical communication standard used to establish rules, payload schemas, and serialization properties for transferring packets between systems. Decoupling event push updates by configuring backends to trigger HTTP POST requests into client endpoints.

In modern web engineering, selecting the correct communication protocol is a core architectural decision. High-frequency microservices rely on binary multiplexed frameworks to conserve bandwidth, while public web endpoints leverage human-readable text channels to maximize developer access and client compatibility. Understanding how Webhooks manages transport, connection handshakes, and packet payload serialization is vital for constructing fast, reliable services.

Key Architectural Pillars

1

Connection Multiplexing

Reusing persistent underlying TCP channels to transmit concurrent Webhooks requests, minimizing socket setup latencies.

Example: Multiplexing streams in HTTP/2 protocols.
2

Payload Serialization

Converting rich in-memory application entities into standardized wire formats (JSON, Protobuf, Binary stream schemas) for network transmission.

3

Flow & Congestion Control

Strategies deployed to prevent fast senders from overwhelming slow receivers and to minimize packet drops across networks.

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Webhooks - Module 2: Networking & Communication | System Design | Revise Algo