learn-go/snippetbox/cmd/web/handlers.go

package main

import (
	"fmt"
	"net/http"
	"strconv"
)

// home ...
func home(w http.ResponseWriter, r *http.Request)  {
	if r.URL.Path != "/" {
		http.NotFound(w, r)
		return
	}
	w.Write([]byte("Hello from snippetbox.chaosfem.tw"))
}

// snippetView ...
func snippetView(w http.ResponseWriter, r *http.Request)  {
	id, err := strconv.Atoi(r.URL.Query().Get("id"))
	if err != nil || id < 1 {
		http.NotFound(w, r)
		return
	}

	fmt.Fprintf(w, "It's snippet id: %d", id)
}

// snippetCreate ...
func snippetCreate(w http.ResponseWriter, r *http.Request)  {
	w.Header().Set("Allow", "POST")

	if r.Method != http.MethodPost {
		http.Error(w, "Method Not Allowed", http.StatusMethodNotAllowed)
		return
	}

	w.Write([]byte("Creating a snippet!"))
}