精通Go语言Web服务开发

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"Mastering Go Web Services" 本书《精通Go Web服务》旨在帮助有经验的Web程序员，特别是对Go语言有一定了解的读者，深入掌握如何在实际环境中部署和集成Go web服务。书中假设读者已经具备关系型数据库和非关系型NoSQL数据存储的基本知识，并且具有一定的并发知识。在本书中，你将学习到： 1. 熟悉RESTful实践并在Go中应用：理解RESTful架构原则，如何通过HTTP方法和URL路由设计高效、清晰的API接口。 2. 掌握API设计的最佳实践：包括如何构建URL路由，使用适当的HTTP响应方法，以及设计易于理解和使用的API接口。 3. 利用中间件和框架增强应用程序：了解并运用Go中的各种中间件和框架，以提高应用性能和可维护性。 4. API的基本和复杂身份验证模型：学习如何实现用户认证和授权，确保只有授权的用户或系统可以访问特定的API资源。 5. 代码部署至预生产和开发环境：学习如何在不同的开发阶段管理代码，确保代码的稳定性和安全性。 6. 提升Go Web服务的速度和效率：优化代码和架构，使服务运行更快速，资源消耗更少。 7. 保障Web服务的安全性：利用Go内置的安全特性，防止SQL注入等攻击，保护敏感数据不被泄露。 8. 设计吸引其他开发者使用的API：学习如何让你的API对第三方开发者友好，包括文档编写、错误处理和版本控制等。书中以构建一个使用Go语言的HTTP包实现的API开始，逐步引导读者深入了解Go语言的特性和最佳实践。你将学习到Model-View-Controller（MVC）等流行的设计模式，以及代码部署至不同环境的方法。书末，你将具备使用Go构建和部署高性能、安全的Web服务和RESTful API的高级技能。通过本书的学习，你将能够提升在Go语言环境下开发和部署Web服务的专业水平。

[ vii ]

Preface

If there's one thing that's said more than anything else about the Go language, it's

that "Go is a server language."

Certainly, Go was built to be an ideal server language, designed as a next-generation

iteration over the expanses and/or over-engineering of C, C++, and Java.

The language has evolved—largely with fervent community support—to go far

beyond servers into system tools, graphics, and even compilers for new languages.

At its heart, however, Go is made for powerful, concurrent, and easy-to-deploy

cross-platform servers. This is what makes the language ideal for this book's topic.

Mastering Web Services in Go is intended to be a guide to building robust web services

and APIs that can scale for production, with emphasis on security, scalability, and

adherence to RESTful principles.

In this book, we'll build a rudimentary API for a social network, which will allow us

to demonstrate and dive deeper into some fundamental concepts, such as connecting

Go to other services and keeping your server secure and highly available.

By the end of this book, you should be experienced with all the relevant instances to

build a robust, scalable, secure, and production-ready web service.

What this book covers

Chapter 1, Our First API in Go, quickly introduces—or reintroduces—some core

concepts related to Go setup and usage as well as the http package.

Chapter 2, RESTful Services in Go, focuses on the guiding principles of the REST

architecture and translates them into our overall API design infrastructure.

Preface

[ viii ]

Chapter 3, Routing and Bootstrapping, is devoted to applying the RESTful practices

from the previous chapter to built-in, third-party, and custom routers for the

scaffolding of our API.

Chapter 4, Designing APIs in Go, explores overall API design while examining other

related concepts, such as utilization of web sockets and HTTP status codes within the

REST architecture.

Chapter 5, Templates and Options in Go, covers ways to utilize the

OPTIONS request

endpoints, implementing TLS and authentication, and standardizing response

formats in our API.

Chapter 6, Accessing and Using Web Services in Go, explores ways to integrate other

web services for authentication and identity in a secure way.

Chapter 7, Working with Other Web Technologies, focuses on bringing in other critical

components of application architecture, such as frontend reverse proxy servers and

solutions, to keep session data in the memory or datastores for quick access.

Chapter 8, Responsive Go for the Web, looks at expressing the values of our API as a

consumer might, but utilizing frontend, client-side libraries to parse and present

our responses.

Chapter 9, Deployment, introduces deployment strategies, including utilization of

processes to keep our server running, highly accessible, and interconnected with

associated services.

Chapter 10, Maximizing Performance, stresses upon various strategies for keeping our

API alive, responsive, and fast in production. We look at caching mechanisms that

are kept on disk as well as in memory, and explore ways in which we can distribute

these mechanisms across multiple machines or images.

Chapter 11, Security, focuses more on best practices to ensure that your application

and sensitive data are protected. We look at eliminating SQL injection and cross-site

scripting attacks.

What you need for this book

To use the examples in this book, you can utilize any one of a Windows, Linux, or

OS X machine, though you may nd Windows limiting with some of the third-party

tools we'll be using.

You'll obviously need to get the Go language platform installed. The easiest way

to do this is through a binary, available for OS X or Windows at [URL]. Go is also

readily available via multiple Linux package managers, such as yum or aptitude.

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