Embedding Files in Go Programs

Introduction

This challenge aims to test your understanding of the embed package in Golang. The embed package allows programs to include arbitrary files and folders in the Go binary at build time.

Skills Graph

Embed Directive

Your task is to modify the given code to embed files and folders into the Go binary and print their contents.

Requirements

• You must use the embed package to embed files and folders.
• You must use the string and []byte types to store the contents of the embedded files.
• You must use the embed.FS type to embed multiple files or folders with wildcards.
• You must print the contents of the embedded files.

Example

## Use these commands to run the example.
## (Note: due to limitation on go playground,
## this example can only be run on your local machine.)
$ mkdir -p folder
$ echo "hello go" > folder/single_file.txt
$ echo "123" > folder/file1.hash
$ echo "456" > folder/file2.hash

$ go run embed-directive.go
hello go
hello go
123
456

Summary

In this challenge, you learned how to use the embed package to embed files and folders into the Go binary at build time. You also learned how to use the string and []byte types to store the contents of the embedded files, and how to use the embed.FS type to embed multiple files or folders with wildcards.