在iOS swift中将图像上传到服务器

const express = require('express');
const multer = require('multer');

const app = express();
const upload = multer({ dest: 'uploads/' });

app.post('/upload', upload.single('image'), (req, res) => {
  // 处理上传的图像
  // 可以将图像保存到服务器的文件系统中，或者将图像存储到云存储服务中
  // 返回上传成功的响应
  res.json({ message: 'Image uploaded successfully' });
});

app.listen(3000, () => {
  console.log('Server started on port 3000');
});

func uploadImage(image: UIImage) {
  guard let url = URL(string: "http://your-server.com/upload") else {
    return
  }
  
  let request = NSMutableURLRequest(url: url)
  request.httpMethod = "POST"
  
  let boundary = UUID().uuidString
  let contentType = "multipart/form-data; boundary=\(boundary)"
  request.setValue(contentType, forHTTPHeaderField: "Content-Type")
  
  let imageData = image.jpegData(compressionQuality: 0.8)
  
  let body = NSMutableData()
  body.append("--\(boundary)\r\n".data(using: .utf8)!)
  body.append("Content-Disposition: form-data; name=\"image\"; filename=\"image.jpg\"\r\n".data(using: .utf8)!)
  body.append("Content-Type: image/jpeg\r\n\r\n".data(using: .utf8)!)
  body.append(imageData!)
  body.append("\r\n".data(using: .utf8)!)
  body.append("--\(boundary)--\r\n".data(using: .utf8)!)
  
  request.httpBody = body as Data
  
  let task = URLSession.shared.dataTask(with: request as URLRequest) { (data, response, error) in
    if let error = error {
      print("Error: \(error)")
      return
    }
    
    if let data = data {
      let responseString = String(data: data, encoding: .utf8)
      print("Response: \(responseString ?? "")")
    }
  }
  
  task.resume()
}