A Deep Dive into Airbnb’s Server-Driven UI System

How Airbnb ships features faster across web, iOS, and Android using a server-driven UI system named Ghost Platform 👻.

Airbnb logo
Airbnb
•
Ryan Brooks
•13 min read•intermediate•
--
•View Original
GraphQLJSONKotlinSwift

Overview

This article explores Airbnb's server-driven UI system, known as the Ghost Platform, which enables faster feature deployment across web, iOS, and Android platforms. It discusses the advantages of server-driven UI over traditional client-driven UI, detailing the architecture, components, and implementation strategies of the Ghost Platform.

What You'll Learn

1

How to implement server-driven UI features using the Ghost Platform

2

Why a standardized GraphQL schema enhances cross-platform UI consistency

3

How to define actions and event handling in a server-driven UI context

Prerequisites & Requirements

  • Understanding of server-driven UI concepts
  • Familiarity with GraphQL(optional)

Key Questions Answered

What is the Ghost Platform and how does it work?
The Ghost Platform is Airbnb's server-driven UI system that allows the backend to control UI rendering across web, iOS, and Android. It uses a unified schema to deliver both data and UI definitions, enabling rapid feature deployment and consistent user experiences across platforms.
How does the Ghost Platform handle UI components?
The Ghost Platform uses sections as the fundamental building blocks of UI, where each section contains data for UI components. These sections are rendered independently, allowing for reuse and flexibility in displaying various UI elements without tight coupling to specific features.
What are the benefits of using a server-driven UI system?
A server-driven UI system like the Ghost Platform allows for centralized control over UI presentation, reducing the need for client-specific implementations. This leads to faster feature rollouts, easier maintenance, and improved consistency across different platforms, addressing issues of versioning and client divergence.
How does the Ghost Platform manage actions and event handling?
The Ghost Platform defines user interactions through an IAction interface, allowing the backend to specify actions that should occur when users interact with UI elements. This enables a flexible and centralized approach to handling user events across different platforms.

Technologies & Tools

Some links below are affiliate links. We may earn a commission if you make a purchase.

Backend
Graphql
Used for managing a unified data schema across web, iOS, and Android applications.
Frontend
Typescript
Utilized in the web framework of the Ghost Platform.
Frontend
Swift
Used in the iOS framework of the Ghost Platform.
Frontend
Kotlin
Employed in the Android framework of the Ghost Platform.

Key Actionable Insights

1
Utilize the Ghost Platform to streamline feature deployment across multiple platforms.
By leveraging server-driven UI, teams can reduce the complexity of maintaining separate client implementations, allowing for quicker iterations and updates.
2
Adopt a standardized GraphQL schema for your applications.
This practice enhances data consistency and simplifies the development process by providing a unified interface for handling responses across various platforms.
3
Implement section components that are independent of their context.
This decoupling allows for greater flexibility and reuse of UI components, making it easier to adapt to changing requirements without extensive rewrites.

Common Pitfalls

1
Failing to maintain parity across different client implementations can lead to inconsistencies in user experience.
This often happens when teams focus on individual client features without considering the overall architecture, leading to divergent behaviors and increased maintenance overhead.

Related Concepts

Server-driven UI
Graphql
Cross-platform Development
Event Handling In UI