Envelope/Backend/Util/Files.go

package Util

import (
	"fmt"
	"os"
)

// WriteFile to disk
func WriteFile(contents []byte) (string, error) {
	var (
		fileName string
		filePath string
		cwd      string
		f        *os.File
		err      error
	)

	cwd, err = os.Getwd()
	if err != nil {
		return fileName, err
	}

	fileName = RandomString(32)

	filePath = fmt.Sprintf(
		"%s/attachments/%s",
		cwd,
		fileName,
	)

	f, err = os.Create(filePath)

	if err != nil {
		return fileName, err
	}

	defer f.Close()

	_, err = f.Write(contents)

	if err != nil {
		return fileName, err
	}

	return fileName, nil
}