package main import ( "fmt" "github.com/steambap/captcha" "golang.org/x/image/font/gofont/goregular" "html/template" "net/http" ) func main() { err := captcha.LoadFont(goregular.TTF) if err != nil { panic(err) } http.HandleFunc("/", indexHandle) http.HandleFunc("/captcha", captchaHandle) fmt.Println("Server start at port 8080") err = http.ListenAndServe(":8080", nil) if err != nil { panic(err) } } func indexHandle(w http.ResponseWriter, _ *http.Request) { doc, err := template.ParseFiles("index.html") if err != nil { fmt.Fprint(w, err.Error()) return } doc.Execute(w, nil) } func captchaHandle(w http.ResponseWriter, _ *http.Request) { img, err := captcha.New(150, 50, func(options *captcha.Options) { options.FontScale = 0.8 }) if err != nil { fmt.Fprint(w, nil) fmt.Println(err.Error()) return } img.WriteImage(w) }