Embedding Files – `embed` Package (Go 1.16+)

Compile‑time Assets

This lesson explains the main concept clearly with beginner-friendly examples and background so you can learn why the code works.

embed lets you embed static files directly into the binary.

import "embed"

//go:embed templates/*.html
var tmplFS embed.FS

func main() {
    files, _ := tmplFS.ReadDir("templates")
    for _, f := range files { fmt.Println(f.Name()) }
}

You can also embed a single file as a string:

//go:embed version.txt
var version string