func main()

in quickstarts/hello-app-tls/main.go [24:47]

• 20 lines of code
• 4 McCabe index (conditional complexity)

func main() {
	port := "8443"
	if fromEnv := os.Getenv("PORT"); fromEnv != "" {
		port = fromEnv
	}
	tlsCert, tlsKey := os.Getenv("TLS_CERT"), os.Getenv("TLS_KEY")
	if tlsCert == "" {
		log.Fatal("TLS_CERT environment variable must be set")
	}
	if tlsKey == "" {
		log.Fatal("TLS_KEY environment variable must be set")
	}

	// register hello function to handle all requests
	server := http.NewServeMux()
	server.HandleFunc("/", hello)

	// start the web server on port and accept requests
	log.Printf("tls cert: %s", tlsCert)
	log.Printf("tls key: %s", tlsKey)
	log.Printf("Server listening on port %s", port)
	err := http.ListenAndServeTLS(":"+port, tlsCert, tlsKey, server)
	log.Fatal(err)
}