Server-Side WebAssembly

Danilo Chiarlone

ISBN 10: 1633436209 / ISBN 13: 9781633436206

Published by Manning Publications, US, 2026

About this Item

Shrink your services, not your ambitions. Traditional backends often feel heavy, costly, and slow to adapt. Server-Side WebAssembly shows you how to build lightning-fast, portable backends that run anywhere, giving you the power of Wasm without the pain of complex rewrites.  Polyglot components: Reuse Rust, JavaScript, and Python code without rewrites.  OCI-compliant containers: Package Wasm workloads once, deploy on any registry or platform.  Kubernetes scaling: Orchestrate tiny binaries that launch in milliseconds and slash cloud bills.  Edge readiness: Serve users closer, lower latency, and maximise device performance.  Built-in security: Sandboxed execution reduces attack surface for production workloads.  Hands-on project path: Key-value, HTTP, and ML components show real workflows step by step.  Serve- Side WebAssembly by WebAssembly contributor Danilo Chiarlone delivers a clear, code-first roadmap for next-gen back-end development.  Starting with essential Wasm fundamentals, the book moves quickly into building production-grade microservices. You containerise components, push them to registries, and integrate with Kubernetes, serverless, and edge platforms. Each chapter layers new skills through a running sample app.  By the final page, you will confidently compile, package, and scale Wasm workloads from multiple languages, tap hardware isolation, and connect to cloud resources and machine-learning models.  Ideal for backend developers, DevOps engineers, and system architects seeking leaner, faster, portable services.

Seller Inventory # LU-9781633436206

Bibliographic Details

• Title: Server-Side WebAssembly
• Publisher: Manning Publications, US
• Publication Date: 2026
• Language: English
• ISBN 10: 1633436209
• ISBN 13: 9781633436206
• Binding: Hardback
• Condition: New
• Dimensions: 7.38W x 0.68H x 9.25D inches 7.38 inches width by 0.68 inches height by 9.25 inches depth
• Weight: 490 grams

About this title

Synopsis

Get a free eBook (PDF or ePub) from Manning as well as access to the online liveBook format (and its AI assistant that will answer your questions in any language) when you purchase the print book.

“WebAssembly on the server is the future of computing.”
–Solomon Hykes, founder of Docker

Learn how to harness the power of Wasm on the application back-end. By following the numerous practical examples and crystal-clear explanations, you’ll soon be seeing the benefits of reduced cold start times, improved security and performance, and the freedom of polyglot programming.

This book lays out everything you need to take WebAssembly beyond its traditional browser domain. You’ll put on the hats of a systems architect, a backend developer, and even a DevOps engineer to get a full picture of WebAssembly development from both an architecture and development perspective.

Inside Server-Side WebAssembly you’ll learn how to:

• Develop and deploy server-side Wasm applications
• Create and manage Wasm containers with OCI
• Compile Wasm components from multiple languages
• Scale Wasm applications using Kubernetes
• Deploy Wasm applications across different environments
• Integrate with databases and machine learning

About the technology

WebAssembly (Wasm) revolutionized frontend development by enabling secure, high-performance code in the browser. Now it’s doing the same for backend infrastructure as a platform for lightweight, portable applications that run anywhere. In this book, you’ll learn how to build production-grade server-side apps using Wasm.

About the book

Server-Side WebAssembly teaches you to use WebAssembly components and the WebAssembly System Interface (WASI) to build web back ends. You’ll start with Wasm fundamentals and then quickly start building a realistic content management system complete with data storage, HTTP servers, and AI-generated content. As you go, you’ll see how Wasm integrates code from multiple languages and connects naturally with databases, AI/ML systems, and deployment platforms like Kubernetes.

What's inside

• Integrate components from multiple languages
• Deploy Wasm applications on Kubernetes
• Connect Wasm apps to databases and ML systems

About the reader

For intermediate web developers. Code samples in Rust, JavaScript and Python.

About the author

Danilo Chiarlone works at Microsoft on cloud and virtualization technologies and is a contributor to several WebAssembly System Interface (WASI) proposals.

Table of Contents

Part 1
1 Introducing Wasm on the server
2 Building server-side applications with Wasm modules
3 Enhancing portability and security with Wasm components
4 Interfacing Wasm with the underlying system
5 From machine learning to databases: Applications of Wasm
Part 2
6 Creating production-grade Wasm applications
7 Introducing Wasm containers
8 Scalability for Wasm with Kubernetes
9 The future of Wasm
A Required tools
B Deploying the SmartCMS to Azure Kubernetes Service

About the Author

Danilo Chiarlone is a champion of multiple WebAssembly System Interface Proposals, and has made significant contributions to WebAssembly with his work on projects like SpiderLightning and runwasi. Danilo is also a passionate educator, offering free lessons on Rust and WebAssembly through his YouTube channel and delivering multiple presentations at events such as CloudNative Rejekts, WasmCon, and RustGlobal. Danilo works at Microsoft, where he focuses on increasing WebAssembly security through hardware virtualization and enabling the next wave of serverless and edge computing applications.