How to Use net.Dial and net.DialContext in Go

Use net.Dial for simple blocking connections and net.DialContext when you need timeouts or cancellation.

// Simple blocking connection
conn, err := net.Dial("tcp", "example.com:80")
if err != nil {
    // handle error
}

// Connection with timeout and cancellation
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
conn, err := net.DialContext(ctx, "tcp", "example.com:80")
if err != nil {
    // handle error
}

Use net.Dial when you just need to connect to a server and don't care about timing out. Use net.DialContext when you need to ensure the connection attempt stops after a specific time or if the user cancels the request. Think of Dial as a basic phone call and DialContext as a call with a timer that hangs up automatically if no one answers.