Network Programming in Go: TCP, WebSockets, and UNIX Sockets

Modern backend applications rely heavily on robust, low-level network communication to exchange data efficiently. Understanding how to build and secure these connections using Go is a fundamental skill for any aspiring systems or backend developer. This text-based course guides you from network programming basics to constructing fully functional, concurrent servers and clients. You will learn how to handle raw TCP connections, implement real-time WebSockets, and optimize local communication using UNIX domain sockets, all while leveraging Go's powerful concurrency model. What you'll learn: 1. Understand core networking concepts, including the TCP/IP stack, socket states, and port allocation. 2. Build robust TCP servers and clients in Go using the standard net package. 3. Implement real-time, bi-directional communication using WebSockets for modern web applications. 4. Configure high-performance local communication using UNIX domain sockets. 5. Apply Go's concurrency primitives, such as goroutines and channels, to handle multiple client connections simultaneously. 6. Manage network timeouts and graceful shutdowns using Go's modern context package. You will start with the fundamental terminology of networking and socket communication before progressing to hands-on implementation. Each section provides clear written explanations and structured code walk-throughs to build your skills step-by-step. This course is designed for beginner backend developers, software engineers, and systems enthusiasts who want to learn network programming in Go. No prior networking experience is required, though a basic understanding of Go syntax is helpful. Start reading today to unlock the power of low-level network programming with Go.