超越功能或要求的 sveltekit 操作

Question

我需要通过 sveltekit 操作上传图像，我在后端 node.js 和代码中使用了三个函数来实现。

import multer from 'multer';
import sharp from 'sharp';

const multerStorage = multer.memoryStorage();

const multerFilter = (req, file, cb) => {
  if (file.mimetype.startsWith('image')) {
    cb(null, true);
  }
  
  else {
    cb('Please upload only images !', false);
  }
};



const upload = multer({
    storage: multerStorage,
    fileFilter: multerFilter,
  });

  const uploadFiles = upload.array('images', 10);

  exports.uploadImages = (req, res, next) => {
    uploadFiles(req, res, (err) => {
      if (err instanceof multer.MulterError) {
        if (err.code === 'LIMIT_UNEXPECTED_FILE') {
          return res.send('Too many files to upload !');
        }
      } else if (err) {
        return res.send(err);
      }
  
      next();
    });
  };

  exports.resizeImages = async (req, res, next) => {
    if (!req.files) return next();
  
  req.body.images = [];
    await Promise.all(
      req.files.map(async (files,i) => {
        
   
        const newFilename = `tour-${files.originalname}-${Date.now()}-${i + 1}.jpeg`;
  
        await sharp(files.buffer) 
          .resize(640, 320)
          .toFormat('jpeg')
          .jpeg({ quality: 90 })
          .toFile(`upload/${newFilename}`);
         
        req.body.images.push(newFilename);
    // console.log(req.body.images);
  
   
    
  
  
   
  
  
      })
    );
  
    next();
  };
  
 
  
  exports.getResultImages = async (req, res,next) => {
    if (req.body.images.length <= 0) {
      
      return res.send(`You must select at least 1 image !`);
      
  
    }
   
    const images = req.body.images.map((image) => '' + image + '');
   // res.status(200).json(req.body.images)
   req.body.images = images;
    res.locals.images = images;
    console.log();
    next();

    
  
    
  };

所以，我怎么能用 sveltekit 操作来处理 req 超过 req，这是正确的方法还是我只需要从后端制作 req，还有 multer 和 sharp 的替代方案我的意思是处理 sveltekit