learning-go/main.go

38 lines
773 B
Go

package main
import (
"html/template"
"log"
"net/http"
"path/filepath"
"sync"
)
// templ represents a single template
type templateHandler struct {
once sync.Once
filename string
templ *template.Template
}
// ServeHTTP handles the HTTP server
func (t *templateHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
t.once.Do(func() {
t.templ = template.Must(template.ParseFiles(filepath.Join("templates", t.filename)))
})
t.templ.Execute(w, nil)
}
func NewTemplateHandler() *templateHandler {
return &templateHandler{filename: "chat.html"}
}
func main() {
http.Handle("/", &templateHandler{filename: "chat.html"})
// start the web server
if err := http.ListenAndServe(":8080", nil); err != nil {
log.Fatal("ListenAndServe:", err)
}
}