The Go Programming Cookbook ensures Go programmers may confidently and effectively navigate the complex software development landscape. Both newcomers to the world of Go programming and seasoned professionals looking to sharpen their skills will find something of interest in this carefully written book.

This cookbook covers a wide range of topics, from the basics of Go syntax and core ideas to more advanced subjects like concurrency, networking, and microservices design. Building a Go development environment, learning the fundamentals of Go constructs, and mastering the art of Go Module dependency management are all covered in the first few chapters, which prepare readers for what's to come. To guarantee that readers can construct strong and maintainable programs, the next sections cover error handling, unit testing, and database interfaces. The book really comes into its own when it comes to its in-depth examination of network programming; it covers topics like building HTTP clients, implementing FTP and SSH clients, and using WebSockets for real-time communication.

To prepare developers to create safe, networked applications in a world where everything is always connected, it teaches them how to establish secure TLS/SSL communications, which is a fundamental component of security. In addition to providing practical solutions, the recipes educate readers on the concurrency model and design principles of Go, which helps them build an intuitive understanding of high-performance software development.

Key Learnings

• Get a solid grounding in programming by learning the syntax and concepts of Go.
• Explore concurrency with Goroutines and Channels to maximize Go's possibilities.
• Effortlessly handle intricate network programming jobs involving WebSockets and HTTP clients.
• Learn TLS/SSL inside and out to make your applications secure for transmitted sensitive information.
• Effectively manage data by integrating with SQL and NoSQL databases.
• Use Go Modules to have easier dependency management and build reproducibility.
• Make your Go code clean and easy to maintain by following design patterns and other best practices.
• Get the most out of your system by learning about memory management, benchmarking, and profiling.
• Create web servers and microservices from the ground up that are scalable and perform exceptionally well.
• Become an expert Go problem solver by learning practical answers to real-world issues.

Table of Content

1. Setting up and Exploring Go
2. Advanced Go Features and Techniques
3. File Handling and Data Processing in Go
4. Building and Managing Go APIs
5. Implementing RPC and gRPC Services in Go
6. Web Services and Automation using Go
7. Building Microservices Architecture using Go
8. Strengthening Database Interactions
9. Enhancing Performance and Best Practices in Go
10. Networking and Protocol Handling

This book takes its time to go over every important aspect of backend programming, from the fundamentals to more advanced techniques, so that you can become experts in Go scripting and all the things Go can do. Quickly introducing readers to Go and its ecosystem, the book walks them through installing the language and creating a development environment with Visual Studio Code. Next, it takes a baby step into learning the basics of building web servers with the net/http package, going over topics like routing, handling various HTTP methods, and the structures of requests and responses. Path variables, regex-based routing, custom handlers, and middleware are some of the advanced routing topics covered, which uses the robust gorilla/mux package. After introducing session and cookie management, the book moves on to user authentication, covering topics such as OAuth2 integration, JWT for secure APIs, and more.

The book then teaches various aspects of database integration with GORM, covering topics such as connecting to SQL databases, performing CRUD operations, managing migrations, and handling transactions and concurrency control. The Gin framework for designing and implementing microservices, REST and gRPC for inter-service communication, and Kubernetes for containerizing applications are also covered in detail. Also covered is message brokering with Apache Kafka and NSQ for asynchronous systems, which guarantees resilient systems and efficient message delivery. Secure coding practices, HTTPS with crypto/tls, avoiding SQL injections and XSS attacks, and configuration management with Viper are also one of the main goal of the book.

Last but not least, the book covers testing and debugging with tools such as Delve, Testify, and GoMock. It then teaches readers through various deployment strategies, such as blue-green, canary, and rolling deployments with AWS CodeDeploy. Utilizing Go's robust features and clean scripting capabilities, this book provides you with the necessary knowledge and skills to develop secure, scalable, and resilient backend systems.

Key Learnings

• Get to know Go's ecosystem and tools to set up and configure backend development efficiently.
• Web servers can be easily built and managed using Go's net/http package for dynamic content delivery.
• Use gorilla/mux to implement advanced routing techniques for flexible URL handling.
• Implement strong API security with user authentication using OAuth2 and JWT.
• Make use of GORM's advanced capabilities of migrations and transactions, to integrate SQL databases.
• Use Gin, Kubernetes, and gRPC to build and launch scalable microservices.
• Make use of NSQ and Kafka for asynchronous processing.
• Prevent frequent vulnerabilities of SQL injection and XSS attacks.
• Use Testify, GoMock, and Delve to streamline testing and debugging.
• Use AWS CodeDeploy with blue-green and canary deployment strategies to deploy applications.

Table of Content

1. Understanding Go for Backend Development
2. Building a Basic Web Server with net/http
3. Advanced Routing with gorilla/mux
4. User Authentication with Oauth2 and JWT
5. Integrating Databases with GORM
6. Creating Microservices in Go
7. Message Brokering with NSQ and Apache Kafka
8. Securing Go Applications
9. Testing and Debugging Go Applications
10. Deploying Go Applications

This is a new edition of "Web Programming with Go" and it's designed to help both entry-level and professional developers build and launch functional web applications using Go's core libraries. Every chapter gives you practical lessons, from setting up Go projects and building strong backend routes to frontend-backend integration, session management, authentication, concurrency, and connecting external APIs.

This book is a hands-on way to learn key skills like testing, logging, error handling and performance tuning, all explained in simple, direct language. The real code and examples make it easy to understand and use the concepts. It covers nearly every major aspect of Go web development, but keeps examples straightforward and avoids complex edge cases, making it ideal for learners and practitioners who want clarity and reliable progress. You'll learn to structure projects, design backend services, manage sessions, secure authentication, and integrate external APIs with step-by-step Bookstore examples. It's got clear, practical techniques for routing, concurrency, testing, logging, performance and error handling, and it uses code that's easy to understand and explanations that are easy to follow.

Basically, this book looks at modern Go features without getting into complicated or niche scenarios, making the lessons useful for real projects. This edition makes it easy for you to get from setup to deployment by focusing on simplicity over unnecessary detail.

Key Features

• Get your web projects sorted with Go, using organised code, a modular design, and real-world workflows.
• You'll build, secure and test RESTful APIs using Go's net/http, Gorilla Mux and JSON best practices.
• Put in place user authentication, role-based access, and strong password protection to make sure your users have a safe experience.
• Get the front end and back end talking to each other by having clear API contracts and simple JSON data interchange practices.
• Use Go's concurrency tools to boost performance, scale up data fetching, and avoid deadlocks.
• Mock databases, APIs, and dependencies for fast, isolated, and reliable automated test routines.
• Set up session management, secure cookies, and resilient authentication flows to keep users logged in.
• Keep an eye on, log and trace application events to quickly find and fix problems.
• Use Go's HTTP client patterns to integrate payment gateways, external APIs, and third-party services.
• Come up with easy-to-understand error messages and stick to the standard incident response plans.

Table of Content

1. Introduction to Web Development in Go
2. Structuring Go Web Application
3. Handling HTTP Requests and Routing
4. Templating and Rendering Content
5. Interaction with Databases
6. Concurrency in Go
7. Sessions, Authentication, and Authorization
8. Frontend and Backend Communication
9. Testing and Debugging