kuda.ai

Created on August 7, 2025

Goodbye, markdown template cache

// main.go
type application struct {
  // ...
  markdownHTMLCache map[string]template.HTML
  // ...
}

func main() {
  // ...
  markdownHTMLCache, err := newMarkdownHTMLCache()
  if err != nil {
    log.Fatalf("could not initialise markdownHTMLCache: %v\n", err)
  }
  app.markdownHTMLCache = markdownHTMLCache
  // ...
}

// helpers.go
func newMarkdownHTMLCache() (map[string]template.HTML, error) {
  pages := make(map[string]template.HTML)

  files := []string{
    "home.md",
    "now.md",
    "about.md",
    "blog.md",
    "bookshelf.md",
  }

  for _, file := range files {
    md, err := os.ReadFile("./data/pages/" + file)
    if err != nil {
      return nil, fmt.Errorf("could not read file: %v", err)
    }

    htmlBytes := blackfriday.Run(md)
    content := template.HTML(htmlBytes)

    pages[file] = content
  }

  return pages, nil
}

// handlers.go
func (app *application) home(w http.ResponseWriter, r *http.Request) {
  w.Header().Add("Started-Working-On", "April-2024")
  t := app.newTemplateData(r)
  t.HTML = app.markdownHTMLCache["home.md"]
  app.render(w, r, 200, "home.tmpl.html", &t)
}