alanyeung-s3/aws/internal/handler/utils.go

package handler

import (
	"fmt"
	"path/filepath"
	"strings"
	"time"
)

// generateRequestId generates a unique request ID
func generateRequestId() string {
	return fmt.Sprintf("%d-%d", time.Now().Unix(), time.Now().Nanosecond())
}

// getContentType returns the MIME type for a file based on its extension
func getContentType(filename string) string {
	ext := strings.ToLower(filepath.Ext(filename))
	switch ext {
	case ".txt":
		return "text/plain"
	case ".html", ".htm":
		return "text/html"
	case ".json":
		return "application/json"
	case ".xml":
		return "application/xml"
	case ".jpg", ".jpeg":
		return "image/jpeg"
	case ".png":
		return "image/png"
	case ".pdf":
		return "application/pdf"
	default:
		return "application/octet-stream"
	}
}