Network Programming in Go: Building TCP and UDP Applications

Network communication is the backbone of modern software, yet many developers treat it as a black box. Understanding how data travels across the wire and how to control that flow is essential for building scalable, high-performance backend systems. This text-based course guides you from networking novice to confidently writing your own network applications in Go. You will learn the core mechanics of TCP and UDP protocols, understand how operating systems handle network sockets, and write robust, concurrent server and client applications using Go's standard library. What you'll learn: - Understand the core differences between TCP and UDP protocols and when to use each. - Read and analyze network traffic flow using standard command-line utilities like netcat. - Build concurrent TCP and UDP servers using Go's native net package and goroutines. - Apply Go's context package to manage connection timeouts, deadlines, and graceful shutdowns. - Implement custom application-level protocols for structured data transmission. - Practice handling network errors, connection failures, and resource leaks safely. You will start by exploring fundamental networking terminology, socket concepts, and the layers of the TCP/IP suite. From there, you will progress to reading and writing code, building practical client-server applications, and implementing modern concurrency patterns to handle multiple connections simultaneously. This course is designed for Go developers who want to transition from writing local applications to building networked systems. No prior network programming experience is required, though a basic familiarity with Go syntax is recommended. Start reading today to unlock the power of network-level programming in Go.