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Building Micro-Frontends, 2nd Edition
book

Building Micro-Frontends, 2nd Edition

by Luca Mezzalira
October 2025
Intermediate to advanced
454 pages
13h 18m
English
O'Reilly Media, Inc.
Content preview from Building Micro-Frontends, 2nd Edition

Chapter 3. Discovering Micro-Frontend Architectures

In the previous chapter, we learned about the decision framework—the foundation of any micro-frontend architecture. In this chapter, we will review the different architecture choices, applying what we have learned so far.

Application of the Micro-Frontend Decision Framework

The decision framework helps you to choose the right approach for your micro-frontend project based on its characteristics, as shown in Figure 3-1.

Diagram of a decision framework for micro-frontend architecture, outlining choices between horizontal and vertical splits, moving through composition, routing, and concluding with technical solutions.
Figure 3-1. Micro-frontend decision framework determining the best architecture for a project

Your first decision will be between a horizontal and vertical split.

Vertical Split

A vertical split offers fewer choices and less complexity because it is likely well known to frontend developers who are used to writing single-page applications (SPAs).

You’ll find a vertical split helpful when your project requires a consistent user interface evolution and a fluid user experience across multiple views. That’s because a vertical split provides the closest developer experience to an SPA, enabling developers to apply familiar tools, best practices, and patterns when building a micro-frontend.

In a vertical-split approach, the relation between a micro-frontend and the application shell is always one-to-one; therefore, the application shell loads only one micro-frontend at a time.

You’ll also want to use client-side routing ...

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Publisher Resources

ISBN: 9781098170776Errata Page