# Upload API

API endpoint để upload các loại file khác nhau.

## Quy tắc phân loại file

- **Images** (jpg, jpeg, png, gif, bmp, webp, svg, ico) → `public/images/`
- **Audio** (mp3, wav, ogg, m4a, aac, flac, wma) → `public/media/`
- **Video** (mp4, avi, mov, wmv, flv, mkv, webm) → `public/media/`
- **Các file khác** → `public/files/`

## API Endpoints

### 1. Upload single file
```
POST /api/upload/single
Content-Type: multipart/form-data

Body:
- file: (binary file)
```

**Response:**
```json
{
  "success": true,
  "message": "File uploaded successfully",
  "data": {
    "filename": "example-1234567890.jpg",
    "originalname": "example.jpg",
    "mimetype": "image/jpeg",
    "size": 12345,
    "type": "image",
    "path": "public/images/example-1234567890.jpg",
    "url": "/public/images/example-1234567890.jpg"
  }
}
```

### 2. Upload multiple files
```
POST /api/upload/multiple
Content-Type: multipart/form-data

Body:
- files: (array of binary files, max 10)
```

**Response:**
```json
{
  "success": true,
  "message": "2 files uploaded successfully",
  "data": [
    {
      "filename": "photo1-1234567890.jpg",
      "originalname": "photo1.jpg",
      "mimetype": "image/jpeg",
      "size": 12345,
      "type": "image",
      "path": "public/images/photo1-1234567890.jpg",
      "url": "/public/images/photo1-1234567890.jpg"
    },
    {
      "filename": "audio-1234567891.mp3",
      "originalname": "audio.mp3",
      "mimetype": "audio/mpeg",
      "size": 54321,
      "type": "audio",
      "path": "public/media/audio-1234567891.mp3",
      "url": "/public/media/audio-1234567891.mp3"
    }
  ]
}
```

### 3. Delete file
```
DELETE /api/upload/file
Content-Type: application/json

Body:
{
  "filepath": "public/images/example-1234567890.jpg"
}
```

### 4. Get file info
```
GET /api/upload/info?filepath=public/images/example-1234567890.jpg
```

## Giới hạn

- **Max file size:** 50MB
- **Max files per upload (multiple):** 10 files

## Sử dụng với Postman/cURL

### Postman:
1. Chọn POST method
2. URL: `http://localhost:10001/api/upload/single`
3. Body → form-data
4. Key: `file`, Type: File
5. Chọn file cần upload

### cURL:
```bash
# Upload single file
curl -X POST http://localhost:10001/api/upload/single \
  -F "file=@/path/to/your/file.jpg"

# Upload multiple files
curl -X POST http://localhost:10001/api/upload/multiple \
  -F "files=@/path/to/file1.jpg" \
  -F "files=@/path/to/file2.mp3"
```

## Truy cập file đã upload

Sau khi upload thành công, file có thể truy cập qua URL:
```
http://localhost:10001/public/images/example-1234567890.jpg
http://localhost:10001/public/media/audio-1234567890.mp3
http://localhost:10001/public/files/document-1234567890.pdf
```