RenderOnePage.go

// RenderOnePage renderiza paginas html
// Uso: RenderOnePage(w, r, &config.Application{}, "index.html", TemplateData{})
func RenderOnePage(w http.ResponseWriter, r *http.Request, app *config.Application, html string, data TemplateData) {
	ts, err := template.ParseFiles(html)
	if err != nil {
		app.Logger.Error(err.Error())
		ServerError(w, r, app, err)
		return
	}

	err = ts.Execute(w, data)
	if err != nil {
		app.Logger.Error(err.Error())
		ServerError(w, r, app, err)
		return
	}
}

// Application é usado para injetar dependências
type Application struct {
	Logger        *slog.Logger
}

// ServerError levanta uma exceção Internal Server Error
func ServerError(w http.ResponseWriter, r *http.Request, app *config.Application, err error) {
	app.Logger.Error(err.Error(), "Path:", r.URL.Path)
	http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
}