In this module, we will cover the fundamentals of building and configuring an HTTP web server in Go, starting with a simple "Hello World" example. We'll delve into JSON and XML encoding, teaching you how to marshal data and handle headers. Additionally, we'll refactor our codebase for better organization with Go modules and explore the advanced routing features of the gorilla/mux library to enhance your API capabilities.

In this module, we will delve into advanced application development techniques in Go, starting with the principles of hexagonal architecture and practical implementation in a banking application. You'll learn to build a database adapter, handle errors effectively, and conduct structured logging with uber/zap. We will also cover the use of Sqlx for database interactions, managing application configuration with environment variables, and practical assignments to enhance API functionalities, such as creating new bank accounts and handling transactions.

In this module, we will focus on securing your Go application by implementing robust authentication and authorization mechanisms. We'll start with an overview of security strategies and best practices, followed by a deep dive into JWT tokens for managing user authentication. You will learn to build an authentication server with login and verification APIs, implement role-based access control, and use middleware for token verification to maintain the security and integrity of your APIs.

In this module, we will delve into the fundamentals of unit testing, starting with state-based testing to ensure the functionality of your code. You'll learn to differentiate between mocks and stubs, and how to use them effectively for testing routes. We will also cover unit testing for services, focusing on writing reliable tests and refactoring code to enhance readability and reliability. By the end of this module, you'll be equipped with the skills to write robust unit tests that shorten feedback loops and improve your development process.

In this module, we will delve into advanced topics essential for building robust and maintainable microservices in Go. We'll start with an overview of the concepts, followed by extracting reusable components from our banking project to create Go modules. You'll learn to integrate these modules into different APIs, refactor APIs for better maintainability, and understand the use of refresh tokens for enhanced security. By the end of this module, you'll be proficient in creating secure, efficient, and reusable components for your microservices architecture.