Messing around with writing logs to a file in Go (Golang)

log_example.go

// log_example.go
package main

import (
	"fmt"
	mypackage "github.com/ogryzek/log_practice/mypackage"
	"log"
	"net/http"
	"os"
)

func main() {
	logFile, err := os.OpenFile("log.txt", os.O_WRONLY, 0666)
	if err != nil {
		fmt.Println("Here's your error message: ", err)
	}
	log.SetOutput(logFile)
	defer logFile.Close()

	http.HandleFunc("/", mypackage.Home)
	http.HandleFunc("/time", mypackage.Time)
	http.HandleFunc("/date", mypackage.Date)
	http.ListenAndServe(":3000", nil)
}

mypackage.go

// mypackage/mypackage.go
package mypackage

import (
	"fmt"
	"log"
	"net/http"
	"time"
)

func Home(rw http.ResponseWriter, req *http.Request) {
	fmt.Fprintln(rw, "Hello, and welcome. Available endpoints are:")
	fmt.Fprintln(rw, "/time  gives the current time")
	fmt.Fprintln(rw, "/date  give the current date")
	message := fmt.Sprintf("%s: home endpoint hit.", time.Now())
	logStuff(message)
}

func Time(rw http.ResponseWriter, req *http.Request) {
	t := time.Now()
	message := fmt.Sprintf("The current time is: %s", t.Format("3:01"))
	fmt.Fprintln(rw, message)
	logStuff(message)
}

func Date(rw http.ResponseWriter, req *http.Request) {
	currentTime := time.Now().Local()
	message := fmt.Sprintf("Today's date is: %s", currentTime.Format("2006-01-01"))
	fmt.Fprintln(rw, message)
	logStuff(message)
}

func logStuff(message string) {
	log.Println(message)
}