beginner-webdev-journey

Step 3: Host web from txt file

1. Buat file step3.go dengan isi berikut

// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build ignore

package main

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

type Page struct {
	Title string
	Body  []byte
}

func (p *Page) save() error {
	filename := p.Title + ".txt"
	return os.WriteFile(filename, p.Body, 0600)
}

func loadPage(title string) (*Page, error) {
	filename := title + ".txt"
	body, err := os.ReadFile(filename)
	if err != nil {
		return nil, err
	}
	return &Page{Title: title, Body: body}, nil
}

func viewHandler(w http.ResponseWriter, r *http.Request) {
	title := r.URL.Path[len("/view/"):]
	p, _ := loadPage(title)
	fmt.Fprintf(w, "<h1>%s</h1><div>%s</div>", p.Title, p.Body)
}

func main() {
	http.HandleFunc("/view/", viewHandler)
	log.Fatal(http.ListenAndServe(":8080", nil))
}

1. Buat file test.txt dengan notepad di folder yang sama dengan step3.go dengan contoh isi

1. Compile dan run step3.go di cmd windows

go build step3.go

step3

atau run step3.go aja langung dengan

go run step3.go

1. Allow popup connection dari step3.exe dan buka url http://localhost:8080/view/test

2. Lihat hasilnya! Jika berhasil coba dengan buat file txt baru dan ganti url akhiran seperti /test ke nama file tsb

This site is open source. Improve this page.