net
Networkimport "net"Provides a portable interface for network I/O including TCP/IP, UDP, domain name resolution, and Unix sockets.
Example
package main
import (
"fmt"
"net"
)
func main() {
ln, _ := net.Listen("tcp", ":8080")
conn, _ := ln.Accept()
fmt.Fprintln(conn, "Hello")
}Key Types & Functions
ListenDialConnListenerIPTCPConnUDPConnAbout net
The net package (imported as net) belongs to the Network category of Go packages. Provides a portable interface for network I/O including TCP/IP, UDP, domain name resolution, and Unix sockets.
Go's standard library is one of the language's greatest strengths, providing production-ready implementations for networking, cryptography, encoding, I/O, and more. The net package follows Go's philosophy of simplicity and composability — small, focused packages that combine through interfaces like io.Reader and io.Writer.
When using net in production, follow Go best practices: handle errors explicitly, use context for cancellation and timeouts, prefer composition over inheritance, and write table-driven tests. The Go documentation at pkg.go.dev provides comprehensive API references and examples for every exported type and function.