Welcome to this exciting course on Introduction to Microservices using the Go programming language! In this course, we will take a deep dive into building a payment application. But not just any payment application - this application utilizes microservices architecture to create a seamless experience for both merchants and customers. We'll explore the ins and outs of microservices and how they can revolutionize the way we build and deploy applications. So, let's get started on this journey of exploration and discovery!

Our payment application is designed to simplify transactions between merchants and customers. The process begins when a customer wants to make a payment. Instead of the traditional method of handing over cash or swiping a card, our application leverages the power of barcodes. The merchant will simply scan a barcode presented by the customer, and the payment will be instantly processed. No need for physical currency or complex card machines - the entire transaction is handled digitally and securely.

By adopting a microservice architecture, our payment application becomes incredibly flexible, scalable, and maintainable. Each step of the payment process is broken down into smaller, independent services that are responsible for specific tasks. For example, we might have a service that creates the money movement for each transaction, while another service handles authentication and security. These services communicate with each other through APIs, making it easy to add new functionality or update existing features without impacting the entire application.